diagram INFINITI FX35 2005 Manual Online

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Wiring Diagram ...................................................
. 615
Diagnostic Procedure .......................................... . 616
Component Inspection ........................................ . 618
DTC P2122, P2123 APP SENSOR ....................... . 619
Component Description ....................................... . 619
CONSULT-II Reference Value in Data Monitor Mode . 619
On Board Diagnosis Logic .................................. . 619
DTC Confirmation Procedure .............................. . 620
Wiring Diagram ................................................... . 621
Diagnostic Procedure .......................................... . 622
Component Inspection ........................................ . 624
Removal and Installation ..................................... . 625
DTC P2127, P2128 APP SENSOR ....................... . 626
Component Description ....................................... . 626
CONSULT-II Reference Value in Data Monitor Mode . 626
On Board Diagnosis Logic .................................. . 626
DTC Confirmation Procedure .............................. . 627
Wiring Diagram ................................................... . 628
Diagnostic Procedure .......................................... . 629
Component Inspection ........................................ . 632
Removal and Installation ..................................... . 632
DTC P2135 TP SENSOR ....................................... . 633
Component Description ....................................... . 633
CONSULT-II Reference Value in Data Monitor Mode . 633
On Board Diagnosis Logic .................................. . 633
DTC Confirmation Procedure .............................. . 634
Wiring Diagram ................................................... . 635
Diagnostic Procedure .......................................... . 636
Component Inspection ........................................ . 639
Removal and Installation ..................................... . 639
DTC P2138 APP SENSOR .................................... . 640
Component Description ....................................... . 640
CONSULT-II Reference Value in Data Monitor Mode . 640
On Board Diagnosis Logic .................................. . 640
DTC Confirmation Procedure .............................. . 641
Wiring Diagram ................................................... . 642
Diagnostic Procedure .......................................... . 643
Component Inspection ........................................ . 647
Removal and Installation ..................................... . 647
IGNITION SIGNAL ................................................. . 648
Component Description ....................................... . 648
Wiring Diagram ................................................... . 649
Diagnostic Procedure .......................................... . 654
Component Inspection ........................................ . 659
Removal and Installation ..................................... . 660
INJECTOR CIRCUIT .............................................. . 661
Component Description ....................................... . 661
CONSULT-II Reference Value in Data Monitor Mode . 661
Wiring Diagram ................................................... . 662
Diagnostic Procedure .......................................... . 663
Component Inspection ........................................ . 667
Removal and Installation ..................................... . 667
FUEL PUMP CIRCUIT ........................................... . 668
Description .......................................................... . 668 CONSULT-II Reference Value in Data Monitor Mode
.668
Wiring Diagram .................................................... .669
Diagnostic Procedure .......................................... .670
Component Inspection ......................................... .672
Removal and Installation ..................................... .673
REFRIGERANT PRESSURE SENSOR ................. .674
Component Description ....................................... .674
Wiring Diagram .................................................... .675
Diagnostic Procedure .......................................... .676
Removal and Installation ..................................... .678
ELECTRICAL LOAD SIGNAL ............................... .679
Description ........................................................... .679
CONSULT-II Reference Value in Data Monitor Mode .679
Diagnostic Procedure .......................................... .679
ICC BRAKE SWITCH ............................................ .680
Component Description ....................................... .680
CONSULT-II Reference Value in Data Monitor Mode .680
Wiring Diagram .................................................... .681
Diagnostic Procedure .......................................... .682
Component Inspection ......................................... .687
ASCD BRAKE SWITCH ........................................ .688
Component Description ....................................... .688
CONSULT-II Reference Value in Data Monitor Mode .688
Wiring Diagram .................................................... .689
Diagnostic Procedure .......................................... .690
Component Inspection ......................................... .694
ASCD INDICATOR ................................................. .695
Component Description ....................................... .695
CONSULT-II Reference Value in Data Monitor Mode .695
Wiring Diagram .................................................... .696
Diagnostic Procedure .......................................... .697
SNOW MODE SWITCH ......................................... .698
Description ........................................................... .698
CONSULT-II Reference Value in the Data Monitor
Mode .................................................................... .698
Wiring Diagram .................................................... .699
Diagnostic Procedure .......................................... .700
Component Inspection ......................................... .702
MIL AND DATA LINK CONNECTOR ..................... .703
Wiring Diagram .................................................... .703
SERVICE DATA AND SPECIFICATIONS (SDS) ... .705
Fuel Pressure ...................................................... .705
Idle Speed and Ignition Timing ............................ .705
Calculated Load Value ......................................... .705
Mass Air Flow Sensor .......................................... .705
Intake Air Temperature Sensor ............................ .705
Engine Coolant Temperature Sensor .................. .705
Air Fuel Ratio (A/F) Sensor 1 Heater ................... .705
Heated Oxygen sensor 2 Heater ......................... .705
Crankshaft Position Sensor (POS) ...................... .705
Camshaft Position Sensor (PHASE) ................... .705
Throttle Control Motor .......................................... .705
Injector ................................................................. .706
Fuel Pump ........................................................... .706

EC-8Revision: 2005 July 2005 FX
VK45DE
INDEX FOR DTC .....................................................707
DTC No. Index ..................................................... .707
Alphabetical Index ............................................... .711
PRECAUTIONS ...................................................... .715
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .............................................................. .715
On Board Diagnostic (OBD) System of Engine and
A/T ....................................................................... .715
Precaution ........................................................... .715
PREPARATION ...................................................... .719
Special Service Tools .......................................... .719
Commercial Service Tools ................................... .720
ENGINE CONTROL SYSTEM ............................... .721
System Diagram .................................................. .721
Multiport Fuel Injection (MFI) System .................. .722
Electronic Ignition (EI) System ............................ .724
Fuel Cut Control (at No Load and High Engine
Speed) ................................................................. .725
AIR CONDITIONING CUT CONTROL ................... .726
Input/Output Signal Chart .................................... .726
System Description .............................................. .726
AUTOMATIC SPEED CONTROL DEVICE (ASCD) .727
System Description .............................................. .727
Component Description ....................................... .728
CAN COMMUNICATION ........................................ .729
System Description .............................................. .729
EVAPORATIVE EMISSION SYSTEM .................... .730
Description ........................................................... .730
Component Inspection ......................................... .733
Removal and Installation ..................................... .734
How to Detect Fuel Vapor Leakage ..................... .734
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ................................................................... .737
System Description .............................................. .737
Diagnostic Procedure .......................................... .738
Component Inspection ......................................... .740
POSITIVE CRANKCASE VENTILATION .............. .742
Description ........................................................... .742
Component Inspection ......................................... .742
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ..................................................................... .744
Description ........................................................... .744
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......... .745
Introduction .......................................................... .745
Two Trip Detection Logic ..................................... .745
Emission-Related Diagnostic Information ............ .746
Malfunction Indicator Lamp (MIL) ........................ .760
OBD System Operation Chart ............................. .764
BASIC SERVICE PROCEDURE ............................ .769
Basic Inspection .................................................. .769
Idle Speed and Ignition Timing Check ................. .774
Idle Mixture Ratio Adjustment .............................. .775
VIN Registration .................................................. .786
Accelerator Pedal Released Position Learning ... .786
Throttle Valve Closed Position Learning .............. .786 Idle Air Volume Learning ......................................
.787
Fuel Pressure Check ........................................... .789
TROUBLE DIAGNOSIS ......................................... .791
Trouble Diagnosis Introduction ............................ .791
DTC Inspection Priority Chart .............................. .797
Fail-Safe Chart ..................................................... .799
Symptom Matrix Chart ......................................... .800
Engine Control Component Parts Location .......... .804
Vacuum Hose Drawing ........................................ .810
Circuit Diagram .................................................... .811
ECM Harness Connector Terminal Layout ........... .813
ECM Terminals and Reference Value .................. .813
CONSULT-II Function (ENGINE) ......................... .822
Generic Scan Tool (GST) Function ...................... .835
CONSULT-II Reference Value in Data Monitor .... .838
Major Sensor Reference Graph in Data Monitor
Mode .................................................................... .842
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .844
Description ........................................................... .844
Testing Condition ................................................. .844
Inspection Procedure ........................................... .844
Diagnostic Procedure ........................................... .845
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT ...................................................................... .854
Description ........................................................... .854
Diagnostic Procedure ........................................... .854
POWER SUPPLY AND GROUND CIRCUIT .......... .855
Wiring Diagram .................................................... .855
Diagnostic Procedure ........................................... .856
Ground Inspection ................................................ .861
DTC U1000, U1001 CAN COMMUNICATION LINE .862
Description ........................................................... .862
On Board Diagnosis Logic ................................... .862
DTC Confirmation Procedure ............................... .862
Wiring Diagram .................................................... .863
Diagnostic Procedure ........................................... .864
DTC P0011, P0021 IVT CONTROL ........................ .865
Description ........................................................... .865
CONSULT-II Reference Value in Data Monitor Mode .866
On Board Diagnosis Logic ................................... .866
DTC Confirmation Procedure ............................... .867
Wiring Diagram .................................................... .868
Diagnostic Procedure ........................................... .871
Component Inspection ......................................... .875
Removal and Installation ...................................... .876
DTC P0031, P0032, P0051, P0052 HO2S1 HEATER .877
Description ........................................................... .877
CONSULT-II Reference Value in Data Monitor Mode .877
On Board Diagnosis Logic ................................... .877
DTC Confirmation Procedure ............................... .878
Wiring Diagram .................................................... .879
Diagnostic Procedure ........................................... .882
Component Inspection ......................................... .884
Removal and Installation ...................................... .884
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER .885
Description ........................................................... .885
CONSULT-II Reference Value in Data Monitor Mode

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. 885
On Board Diagnosis Logic .................................. . 885
DTC Confirmation Procedure .............................. . 886
Wiring Diagram ................................................... . 887
Diagnostic Procedure .......................................... . 890
Component Inspection ........................................ . 892
Removal and Installation ..................................... . 892
DTC P0101 MAF SENSOR ................................... . 893
Component Description ....................................... . 893
CONSULT-II Reference Value in Data Monitor Mode . 893
On Board Diagnosis Logic .................................. . 893
DTC Confirmation Procedure .............................. . 894
Overall Function Check ....................................... . 895
Wiring Diagram ................................................... . 896
Diagnostic Procedure .......................................... . 897
Component Inspection ........................................ . 900
Removal and Installation ..................................... . 901
DTC P0102, P0103 MAF SENSOR ....................... . 902
Component Description ....................................... . 902
CONSULT-II Reference Value in Data Monitor Mode . 902
On Board Diagnosis Logic .................................. . 902
DTC Confirmation Procedure .............................. . 903
Wiring Diagram ................................................... . 904
Diagnostic Procedure .......................................... . 905
Component Inspection ........................................ . 907
Removal and Installation ..................................... . 908
DTC P0112, P0113 IAT SENSOR .......................... . 909
Component Description ....................................... . 909
On Board Diagnosis Logic .................................. . 909
DTC Confirmation Procedure .............................. . 909
Wiring Diagram ................................................... .. 911
Diagnostic Procedure .......................................... . 912
Component Inspection ........................................ . 913
Removal and Installation ..................................... . 913
DTC P0117, P0118 ECT SENSOR ........................ . 914
Component Description ....................................... . 914
On Board Diagnosis Logic .................................. . 914
DTC Confirmation Procedure .............................. . 915
Wiring Diagram ................................................... . 916
Diagnostic Procedure .......................................... . 917
Component Inspection ........................................ . 919
Removal and Installation ..................................... . 919
DTC P0122, P0123 TP SENSOR .......................... . 920
Component Description ....................................... . 920
CONSULT-II Reference Value in Data Monitor Mode . 920
On Board Diagnosis Logic .................................. . 920
DTC Confirmation Procedure .............................. . 921
Wiring Diagram ................................................... . 922
Diagnostic Procedure .......................................... . 923
Component Inspection ........................................ . 926
Removal and Installation ..................................... . 926
DTC P0125 ECT SENSOR .................................... . 927
Component Description ....................................... . 927
On Board Diagnosis Logic .................................. . 927
DTC Confirmation Procedure .............................. . 928
Diagnostic Procedure .......................................... . 928 Component Inspection .........................................
.929
Removal and Installation ..................................... .929
DTC P0127 IAT SENSOR ...................................... .930
Component Description ....................................... .930
On Board Diagnosis Logic ................................... .930
DTC Confirmation Procedure .............................. .930
Diagnostic Procedure .......................................... .931
Component Inspection ......................................... .932
Removal and Installation ..................................... .932
DTC P0128 THERMOSTAT FUNCTION ................ .933
On Board Diagnosis Logic ................................... .933
DTC Confirmation Procedure .............................. .933
Diagnostic Procedure .......................................... .933
Component Inspection ......................................... .934
Removal and Installation ..................................... .934
DTC P0132, P0152 HO2S1 .................................... .935
Component Description ....................................... .935
CONSULT-II Reference Value in Data Monitor Mode .935
On Board Diagnosis Logic ................................... .935
DTC Confirmation Procedure .............................. .936
Wiring Diagram .................................................... .937
Diagnostic Procedure .......................................... .940
Component Inspection ......................................... .942
Removal and Installation ..................................... .943
DTC P0133, P0153 HO2S1 .................................... .944
Component Description ....................................... .944
CONSULT-II Reference Value in Data Monitor Mode .944
On Board Diagnosis Logic ................................... .944
DTC Confirmation Procedure .............................. .945
Overall Function Check ....................................... .946
Wiring Diagram .................................................... .947
Diagnostic Procedure .......................................... .950
Component Inspection ......................................... .954
Removal and Installation ..................................... .955
DTC P0134, P0154 HO2S1 .................................... .956
Component Description ....................................... .956
CONSULT-II Reference Value in Data Monitor Mode .956
On Board Diagnosis Logic ................................... .956
DTC Confirmation Procedure .............................. .957
Overall Function Check ....................................... .958
Wiring Diagram .................................................... .959
Diagnostic Procedure .......................................... .962
Component Inspection ......................................... .964
Removal and Installation ..................................... .965
DTC P0138, P0158 HO2S2 .................................... .966
Component Description ....................................... .966
CONSULT-II Reference Value in Data Monitor Mode .966
On Board Diagnosis Logic ................................... .966
DTC Confirmation Procedure .............................. .967
Wiring Diagram .................................................... .968
Diagnostic Procedure .......................................... .971
Component Inspection ......................................... .973
Removal and Installation ..................................... .974
DTC P0139, P0159 HO2S2 .................................... .975
Component Description ....................................... .975

EC-10Revision: 2005 July 2005 FX
CONSULT-II Reference Value in Data Monitor Mode
.975
On Board Diagnosis Logic ................................... .975
DTC Confirmation Procedure .............................. .976
Overall Function Check ....................................... .976
Wiring Diagram .................................................... .978
Diagnostic Procedure .......................................... .981
Component Inspection ......................................... .984
Removal and Installation ..................................... .985
DTC P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION ............................................................. .986
On Board Diagnosis Logic ................................... .986
DTC Confirmation Procedure .............................. .986
Wiring Diagram .................................................... .988
Diagnostic Procedure .......................................... .990
DTC P0172, P0175 FUEL INJECTION SYSTEM
FUNCTION ............................................................. .995
On Board Diagnosis Logic ................................... .995
DTC Confirmation Procedure .............................. .995
Wiring Diagram .................................................... .997
Diagnostic Procedure .......................................... .999
DTC P0181 FTT SENSOR ..................................... 1004
Component Description ....................................... 1004
On Board Diagnosis Logic ................................... 1004
DTC Confirmation Procedure .............................. 1004
Wiring Diagram .................................................... 1006
Diagnostic Procedure .......................................... 1007
Component Inspection ......................................... 1009
Removal and Installation ..................................... 1009
DTC P0182, P0183 FTT SENSOR ......................... 1010
Component Description ....................................... 1010
On Board Diagnosis Logic ................................... 1010
DTC Confirmation Procedure .............................. 1010
Wiring Diagram .................................................... 1011
Diagnostic Procedure .......................................... 1012
Component Inspection ......................................... 1014
Removal and Installation ..................................... 1014
DTC P0222, P0223 TP SENSOR ........................... 1015
Component Description ....................................... 1015
CONSULT-II Reference Value in Data Monitor Mode 1015
On Board Diagnosis Logic ................................... 1015
DTC Confirmation Procedure .............................. 1016
Wiring Diagram .................................................... 1017
Diagnostic Procedure .......................................... 1018
Component Inspection ......................................... 1021
Removal and Installation ..................................... 1021
DTC P0300 - P0308 MULTIPLE CYLINDER MIS-
FIRE, NO. 1 - 8 CYLINDER MISFIRE .................... 1022
On Board Diagnosis Logic ................................... 1022
DTC Confirmation Procedure .............................. 1023
Diagnostic Procedure .......................................... 1024
DTC P0327, P0328, P0332, P0333 KS .................. 1031
Component Description ....................................... 1031
On Board Diagnosis Logic ................................... 1031
DTC Confirmation Procedure .............................. 1031
Wiring Diagram .................................................... 1032
Diagnostic Procedure .......................................... 1033 Component Inspection .........................................
1035
Removal and Installation ...................................... 1035
DTC P0335 CKP SENSOR (POS) ......................... 1036
Component Description ....................................... 1036
CONSULT-II Reference Value in Data Monitor Mode 1036
On Board Diagnosis Logic ................................... 1036
DTC Confirmation Procedure ............................... 1037
Wiring Diagram .................................................... 1038
Diagnostic Procedure ........................................... 1039
Component Inspection ......................................... 1042
Removal and Installation ...................................... 1042
DTC P0340 CAMSHAFT POSITION (CMP) SEN-
SOR (PHASE) ........................................................ 1043
Component Description ....................................... 1043
On Board Diagnosis Logic ................................... 1043
DTC Confirmation Procedure ............................... 1044
Wiring Diagram .................................................... 1045
Diagnostic Procedure ........................................... 1046
Component Inspection ......................................... 1049
Removal and Installation ...................................... 1049
DTC P0420, P0430 THREE WAY CATALYST FUNC-
TION ....................................................................... 1050
On Board Diagnosis Logic ................................... 1050
DTC Confirmation Procedure ............................... 1050
Overall Function Check ........................................ 1051
Diagnostic Procedure ........................................... 1052
DTC P0441 EVAP CONTROL SYSTEM ................ 1056
System Description .............................................. 1056
On Board Diagnosis Logic ................................... 1056
DTC Confirmation Procedure ............................... 1056
Overall Function Check ........................................ 1057
Diagnostic Procedure ........................................... 1058
DTC P0442 EVAP CONTROL SYSTEM ................ 1061
On Board Diagnosis Logic ................................... 1061
DTC Confirmation Procedure ............................... 1062
Diagnostic Procedure ........................................... 1063
DTC P0444, P0445 EVAP CANISTER PURGE VOL-
UME CONTROL SOLENOID VALVE ..................... 1069
Description ........................................................... 1069
CONSULT-II Reference Value in Data Monitor Mode 1069
On Board Diagnosis Logic ................................... 1070
DTC Confirmation Procedure ............................... 1070
Wiring Diagram .................................................... 1071
Diagnostic Procedure ........................................... 1073
Component Inspection ......................................... 1074
Removal and Installation ...................................... 1075
DTC P0447 EVAP CANISTER VENT CONTROL
VALVE ..................................................................... 1076
Component Description ....................................... 1076
CONSULT-II Reference Value in Data Monitor Mode 1076
On Board Diagnosis Logic ................................... 1076
DTC Confirmation Procedure ............................... 1077
Wiring Diagram .................................................... 1078
Diagnostic Procedure ........................................... 1079
Component Inspection ......................................... 1081
DTC P0451 EVAP CONTROL SYSTEM PRESSURE

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SENSOR ................................................................
1083
Component Description ....................................... 1083
CONSULT-II Reference Value in Data Monitor Mode 1083
On Board Diagnosis Logic .................................. 1083
DTC Confirmation Procedure .............................. 1084
Diagnostic Procedure .......................................... 1084
Component Inspection ........................................ 1085
DTC P0452 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................ 1086
Component Description ....................................... 1086
CONSULT-II Reference Value in Data Monitor Mode 1086
On Board Diagnosis Logic .................................. 1086
DTC Confirmation Procedure .............................. 1087
Wiring Diagram ................................................... 1088
Diagnostic Procedure .......................................... 1089
Component Inspection ........................................ 1091
DTC P0453 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................ 1092
Component Description ....................................... 1092
CONSULT-II Reference Value in Data Monitor Mode 1092
On Board Diagnosis Logic .................................. 1092
DTC Confirmation Procedure .............................. 1093
Wiring Diagram ................................................... 1094
Diagnostic Procedure .......................................... 1095
Component Inspection ........................................ 1099
DTC P0455 EVAP CONTROL SYSTEM ...............1100 On Board Diagnosis Logic ..................................1100
DTC Confirmation Procedure ..............................1101
Diagnostic Procedure ..........................................1102
DTC P0456 EVAP CONTROL SYSTEM ...............1108 On Board Diagnosis Logic ..................................1108
DTC Confirmation Procedure ..............................1109
Overall Function Check .......................................1110
Diagnostic Procedure .......................................... 1111
DTC P0460 FUEL LEVEL SENSOR .....................1117 Component Description .......................................1117
On Board Diagnosis Logic ..................................1117
DTC Confirmation Procedure ..............................1117
Diagnostic Procedure ..........................................1118
Removal and Installation .....................................1118
DTC P0461 FUEL LEVEL SENSOR .....................1119 Component Description .......................................1119
On Board Diagnosis Logic ..................................1119
Overall Function Check .......................................1119
Diagnostic Procedure ..........................................1120
Removal and Installation .....................................1120
DTC P0462, P0463 FUEL LEVEL SENSOR CIR-
CUIT .......................................................................1121 Component Description .......................................1121
On Board Diagnosis Logic ..................................1121
DTC Confirmation Procedure ..............................1121
Diagnostic Procedure ..........................................1122
Removal and Installation .....................................1122
DTC P0500 VSS ....................................................1123 Description ..........................................................1123
On Board Diagnosis Logic ..................................1123 DTC Confirmation Procedure ..............................
11 2 3
Overall Function Check ....................................... 11 2 4
Diagnostic Procedure .......................................... 11 2 4
DTC P0506 ISC SYSTEM ...................................... 112 5
Description ........................................................... 11 2 5
On Board Diagnosis Logic ................................... 11 2 5
DTC Confirmation Procedure .............................. 11 2 5
Diagnostic Procedure .......................................... 11 2 6
DTC P0507 ISC SYSTEM ...................................... 112 7
Description ........................................................... 11 2 7
On Board Diagnosis Logic ................................... 11 2 7
DTC Confirmation Procedure .............................. 11 2 7
Diagnostic Procedure .......................................... 11 2 8
DTC P0550 PSP SENSOR .................................... 112 9
Component Description ....................................... 11 2 9
CONSULT-II Reference Value in Data Monitor Mode 11 2 9
On Board Diagnosis Logic ................................... 11 2 9
DTC Confirmation Procedure .............................. 11 2 9
Wiring Diagram .................................................... 11 3 0
Diagnostic Procedure .......................................... 11 3 1
Component Inspection ......................................... 11 3 3
Removal and Installation ..................................... 11 3 3
DTC P0605 ECM .................................................... 113 4
Component Description ....................................... 11 3 4
On Board Diagnosis Logic ................................... 11 3 4
DTC Confirmation Procedure .............................. 11 3 4
Diagnostic Procedure .......................................... 11 3 5
DTC P1065 ECM POWER SUPPLY ...................... 113 7
Component Description ....................................... 11 3 7
On Board Diagnosis Logic ................................... 11 3 7
DTC Confirmation Procedure .............................. 11 3 7
Wiring Diagram .................................................... 11 3 8
Diagnostic Procedure .......................................... 11 3 9
DTC P1111, P1136 IVT CONTROL SOLENOID
VALVE .................................................................... 114 1
Component Description ....................................... 11 4 1
CONSULT-II Reference Value in Data Monitor Mode 11 4 1
On Board Diagnosis Logic ................................... 11 4 1
DTC Confirmation Procedure .............................. 11 4 1
Wiring Diagram .................................................... 11 4 2
Diagnostic Procedure .......................................... 11 4 5
Component Inspection ......................................... 11 4 7
Removal and Installation ..................................... 11 4 7
DTC P1121 ELECTRIC THROTTLE CONTROL
ACTUATOR ............................................................ 114 8
Component Description ....................................... 11 4 8
On Board Diagnosis Logic ................................... 11 4 8
DTC Confirmation Procedure .............................. 11 4 8
Diagnostic Procedure .......................................... 11 4 9
DTC P1122 ELECTRIC THROTTLE CONTROL
FUNCTION ............................................................. 115 0
Description ........................................................... 11 5 0
On Board Diagnosis Logic ................................... 11 5 0
DTC Confirmation Procedure .............................. 11 5 0
Wiring Diagram .................................................... 11 5 1
Diagnostic Procedure .......................................... 11 5 2

EC-12Revision: 2005 July 2005 FX
Component Inspection .........................................
11 5 5
Removal and Installation ..................................... 11 5 5
DTC P1124, P1126 THROTTLE CONTROL MOTOR
RELAY .................................................................... 115 6
Component Description ....................................... 11 5 6
CONSULT-II Reference Value in Data Monitor Mode 11 5 6
On Board Diagnosis Logic ................................... 11 5 6
DTC Confirmation Procedure .............................. 11 5 6
Wiring Diagram .................................................... 11 5 8
Diagnostic Procedure .......................................... 11 5 9
DTC P1128 THROTTLE CONTROL MOTOR ........ 116 1
Component Description ....................................... 11 6 1
On Board Diagnosis Logic ................................... 11 6 1
DTC Confirmation Procedure .............................. 11 6 1
Wiring Diagram .................................................... 11 6 2
Diagnostic Procedure .......................................... 11 6 3
Component Inspection ......................................... 11 6 4
Removal and Installation ..................................... 11 6 5
DTC P1140, P1145 IVT CONTROL POSITION SEN-
SOR ........................................................................ 116 6
Component Description ....................................... 11 6 6
CONSULT-II Reference Value in Data Monitor Mode 11 6 6
On Board Diagnosis Logic ................................... 11 6 6
DTC Confirmation Procedure .............................. 11 6 6
Wiring Diagram .................................................... 11 6 7
Diagnostic Procedure .......................................... 11 7 0
Component Inspection ......................................... 11 7 3
Removal and Installation ..................................... 11 7 3
DTC P1143, P1163 HO2S1 .................................... 117 4
Component Description ....................................... 11 7 4
CONSULT-II Reference Value in Data Monitor Mode 11 7 4
On Board Diagnosis Logic ................................... 11 7 4
DTC Confirmation Procedure .............................. 11 7 5
Overall Function Check ....................................... 11 7 6
Diagnostic Procedure .......................................... 11 7 6
Component Inspection ......................................... 11 7 8
Removal and Installation ..................................... 11 7 9
DTC P1144, P1164 HO2S1 .................................... 118 0
Component Description ....................................... 11 8 0
CONSULT-II Reference Value in Data Monitor Mode 11 8 0
On Board Diagnosis Logic ................................... 11 8 0
DTC Confirmation Procedure .............................. 11 8 1
Overall Function Check ....................................... 11 8 2
Diagnostic Procedure .......................................... 11 8 2
Component Inspection ......................................... 11 8 4
Removal and Installation ..................................... 11 8 6
DTC P1146, P1166 HO2S2 .................................... 118 7
Component Description ....................................... 11 8 7
CONSULT-II Reference Value in Data Monitor Mode 11 8 7
On Board Diagnosis Logic ................................... 11 8 7
DTC Confirmation Procedure .............................. 11 8 8
Overall Function Check ....................................... 11 8 8
Wiring Diagram .................................................... 11 9 0
Diagnostic Procedure .......................................... 11 9 3 Component Inspection .........................................
11 9 6
Removal and Installation ...................................... 11 9 7
DTC P1147, P1167 HO2S2 .................................... 11 98
Component Description ....................................... 11 9 8
CONSULT-II Reference Value in Data Monitor Mode 11 9 8
On Board Diagnosis Logic ................................... 11 9 8
DTC Confirmation Procedure ............................... 11 9 9
Overall Function Check ........................................ 11 9 9
Wiring Diagram .................................................... 1201
Diagnostic Procedure ........................................... 1204
Component Inspection ......................................... 1207
Removal and Installation ...................................... 1208
DTC P1148, P1168 CLOSED LOOP CONTROL ... 1209
On Board Diagnosis Logic ................................... 1209
DTC Confirmation Procedure (Up To Serial 400595
Except for Serial 400590) .................................... 1209
DTC Confirmation Procedure (For Serial 400590
and From Serial 400596) ..................................... 1210
Overall Function Check (Up To Serial 400595
Except for Serial 400590) .................................... 1210
Diagnostic Procedure ........................................... 1210
DTC P1211 TCS CONTROL UNIT ......................... 1211
Description ........................................................... 1211
On Board Diagnosis Logic ................................... 1211
DTC Confirmation Procedure ............................... 1211
Diagnostic Procedure ........................................... 1211
DTC P1212 TCS COMMUNICATION LINE ............ 1212
Description ........................................................... 1212
On Board Diagnosis Logic ................................... 1212
DTC Confirmation Procedure ............................... 1212
Diagnostic Procedure ........................................... 1212
DTC P1217 ENGINE OVER TEMPERATURE ....... 1213
Description ........................................................... 1213
CONSULT-II Reference Value in Data Monitor Mode 1214
On Board Diagnosis Logic ................................... 1214
Overall Function Check ........................................ 1215
Wiring Diagram .................................................... 1217
Diagnostic Procedure ........................................... 1219
Main 13 Causes of Overheating .......................... 1223
Component Inspection ......................................... 1224
DTC P1225 TP SENSOR ....................................... 1225
Component Description ....................................... 1225
On Board Diagnosis Logic ................................... 1225
DTC Confirmation Procedure ............................... 1225
Diagnostic Procedure ........................................... 1226
Removal and Installation ...................................... 1226
DTC P1226 TP SENSOR ....................................... 1227
Component Description ....................................... 1227
On Board Diagnosis Logic ................................... 1227
DTC Confirmation Procedure ............................... 1227
Diagnostic Procedure ........................................... 1228
Removal and Installation ...................................... 1228
DTC P1229 SENSOR POWER SUPPLY ............... 1229
On Board Diagnosis Logic ................................... 1229
DTC Confirmation Procedure ............................... 1229
Wiring Diagram .................................................... 1230
Diagnostic Procedure ........................................... 1231

EC-13
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DTC P1444 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE ............................. 1233
Description .......................................................... 1233
CONSULT-II Reference Value in Data Monitor Mode 1233
On Board Diagnosis Logic .................................. 1234
DTC Confirmation Procedure .............................. 1234
Wiring Diagram ................................................... 1235
Diagnostic Procedure .......................................... 1237
Component Inspection ........................................ 1240
Removal and Installation ..................................... 1240
DTC P1446 EVAP CANISTER VENT CONTROL
VALVE .................................................................... 1241
Component Description ....................................... 1241
CONSULT-II Reference Value in Data Monitor Mode 1241
On Board Diagnosis Logic .................................. 1241
DTC Confirmation Procedure .............................. 1242
Wiring Diagram ................................................... 1243
Diagnostic Procedure .......................................... 1244
Component Inspection ........................................ 1245
DTC P1564 ICC STEERING SWITCH ................... 1247
Component Description ....................................... 1247
CONSULT-II Reference Value in Data Monitor Mode 1247
On Board Diagnosis Logic .................................. 1247
DTC Confirmation Procedure .............................. 1248
Wiring Diagram ................................................... 1249
Diagnostic Procedure .......................................... 1250
Component Inspection ........................................ 1253
DTC P1564 ASCD STEERING SWITCH ............... 1254
Component Description ....................................... 1254
CONSULT-II Reference Value in Data Monitor Mode 1254
On Board Diagnosis Logic .................................. 1254
DTC Confirmation Procedure .............................. 1255
Wiring Diagram ................................................... 1256
Diagnostic Procedure .......................................... 1257
Component Inspection ........................................ 1260
DTC P1568 ICC FUNCTION .................................. 1261
On Board Diagnosis Logic .................................. 1261
DTC Confirmation Procedure .............................. 1261
Diagnostic Procedure .......................................... 1261
DTC P1572 ICC BRAKE SWITCH ........................ 1262
Component Description ....................................... 1262
CONSULT-II Reference Value in Data Monitor Mode 1262
On Board Diagnosis Logic .................................. 1262
DTC Confirmation Procedure .............................. 1263
Wiring Diagram ................................................... 1264
Diagnostic Procedure .......................................... 1265
Component Inspection ........................................ 1270
DTC P1572 ASCD BRAKE SWITCH .................... 1271
Component Description ....................................... 1271
CONSULT-II Reference Value in Data Monitor Mode 1271
On Board Diagnosis Logic .................................. 1271
DTC Confirmation Procedure .............................. 1272
Wiring Diagram ................................................... 1273 Diagnostic Procedure ..........................................
1274
Component Inspection ......................................... 1278
DTC P1574 ICC VEHICLE SPEED SENSOR ........ 1279
Component Description ....................................... 1279
On Board Diagnosis Logic ................................... 1279
DTC Confirmation Procedure .............................. 1279
Diagnostic Procedure .......................................... 1280
DTC P1574 ASCD VEHICLE SPEED SENSOR .... 1281
Component Description ....................................... 1281
On Board Diagnosis Logic ................................... 1281
DTC Confirmation Procedure .............................. 1281
Diagnostic Procedure .......................................... 1282
DTC P1706 PNP SWITCH ..................................... 1283
Component Description ....................................... 1283
CONSULT-II Reference Value in Data Monitor Mode 1283
On Board Diagnosis Logic ................................... 1283
DTC Confirmation Procedure .............................. 1283
Overall Function Check ....................................... 1284
Wiring Diagram .................................................... 1285
Diagnostic Procedure .......................................... 1286
DTC P1720 VSS ..................................................... 1288
Description ........................................................... 1288
CONSULT-II Reference Value in Data Monitor Mode 1288
On Board Diagnosis Logic ................................... 1288
DTC Confirmation Procedure .............................. 1288
Diagnostic Procedure .......................................... 1289
DTC P1780 SHIFT CHANGE SIGNAL .................. 1290
Description ........................................................... 1290
On Board Diagnosis Logic ................................... 1290
DTC Confirmation Procedure .............................. 1290
Diagnostic Procedure .......................................... 1290
DTC P1800 VIAS CONTROL SOLENOID VALVE 1292 Component Description ....................................... 1292
CONSULT-II Reference Value in Data Monitor Mode 1292
On Board Diagnosis Logic ................................... 1292
DTC Confirmation Procedure .............................. 1292
Wiring Diagram .................................................... 1293
Diagnostic Procedure .......................................... 1294
Component Inspection ......................................... 1295
Removal and Installation ..................................... 1296
DTC P1805 BRAKE SWITCH ................................ 1297
Description ........................................................... 1297
CONSULT-II Reference Value in Data Monitor Mode 1297
On Board Diagnosis Logic ................................... 1297
DTC Confirmation Procedure .............................. 1297
Wiring Diagram .................................................... 1298
Diagnostic Procedure .......................................... 1299
Component Inspection ......................................... 1301
DTC P2122, P2123 APP SENSOR ........................ 1302
Component Description ....................................... 1302
CONSULT-II Reference Value in Data Monitor Mode 1302
On Board Diagnosis Logic ................................... 1302
DTC Confirmation Procedure .............................. 1303
Wiring Diagram .................................................... 1304

EC-14Revision: 2005 July 2005 FX
Diagnostic Procedure ..........................................
1305
Component Inspection ......................................... 1307
Removal and Installation ..................................... 1308
DTC P2127, P2128 APP SENSOR ........................ 1309
Component Description ....................................... 1309
CONSULT-II Reference Value in Data Monitor Mode 1309
On Board Diagnosis Logic ................................... 1309
DTC Confirmation Procedure .............................. 1310
Wiring Diagram .................................................... 1311
Diagnostic Procedure .......................................... 1312
Component Inspection ......................................... 1315
Removal and Installation ..................................... 1315
DTC P2135 TP SENSOR ....................................... 1316
Component Description ....................................... 1316
CONSULT-II Reference Value in Data Monitor Mode 1316
On Board Diagnosis Logic ................................... 1316
DTC Confirmation Procedure .............................. 1317
Wiring Diagram .................................................... 1318
Diagnostic Procedure .......................................... 1319
Component Inspection ......................................... 1322
Removal and Installation ..................................... 1322
DTC P2138 APP SENSOR .................................... 1323
Component Description ....................................... 1323
CONSULT-II Reference Value in Data Monitor Mode 1323
On Board Diagnosis Logic ................................... 1323
DTC Confirmation Procedure .............................. 1324
Wiring Diagram .................................................... 1325
Diagnostic Procedure .......................................... 1326
Component Inspection ......................................... 1330
Removal and Installation ..................................... 1330
VARIABLE INDUCTION AIR CONTROL SYSTEM
(VIAS) ..................................................................... 1331
Description ........................................................... 1331
CONSULT-II Reference Value in Data Monitor Mode 1332
Wiring Diagram .................................................... 1333
Diagnostic Procedure .......................................... 1334
Component Inspection ......................................... 1337
Removal and Installation ..................................... 1338
IGNITION SIGNAL ................................................. 1339
Component Description ....................................... 1339
Wiring Diagram .................................................... 1340
Diagnostic Procedure .......................................... 1345
Component Inspection ......................................... 1349
Removal and Installation ..................................... 1350
INJECTOR CIRCUIT .............................................. 1351
Component Description ....................................... 1351
CONSULT-II Reference Value in Data Monitor Mode 1351
Wiring Diagram .................................................... 1352
Diagnostic Procedure .......................................... 1353
Component Inspection ......................................... 1357
Removal and Installation ..................................... 1357
FUEL PUMP CIRCUIT ........................................... 1358
Description ........................................................... 1358
CONSULT-II Reference Value in Data Monitor Mode 1358
Wiring Diagram .................................................... 1359
Diagnostic Procedure ........................................... 1360
Component Inspection ......................................... 1363
Removal and Installation ...................................... 1363
REFRIGERANT PRESSURE SENSOR ................. 1364
Component Description ....................................... 1364
Wiring Diagram .................................................... 1365
Diagnostic Procedure ........................................... 1366
Removal and Installation ...................................... 1368
ELECTRICAL LOAD SIGNAL ............................... 1369
Description ........................................................... 1369
CONSULT-II Reference Value in Data Monitor Mode 1369
Diagnostic Procedure ........................................... 1369
ICC BRAKE SWITCH ............................................. 1370
Component Description ....................................... 1370
CONSULT-II Reference Value in Data Monitor Mode 1370
Wiring Diagram .................................................... 1371
Diagnostic Procedure ........................................... 1372
Component Inspection ......................................... 1377
ASCD BRAKE SWITCH ......................................... 1378
Component Description ....................................... 1378
CONSULT-II Reference Value in Data Monitor Mode 1378
Wiring Diagram .................................................... 1379
Diagnostic Procedure ........................................... 1380
Component Inspection ......................................... 1384
ASCD INDICATOR ................................................. 1385
Component Description ....................................... 1385
CONSULT-II Reference Value in Data Monitor Mode
1385
Wiring Diagram .................................................... 1386
Diagnostic Procedure ........................................... 1387
SNOW MODE SWITCH .......................................... 1388
Description ........................................................... 1388
CONSULT-II Reference Value in the Data Monitor
Mode .................................................................... 1388
Wiring Diagram .................................................... 1389
Diagnostic Procedure ........................................... 1390
Component Inspection ......................................... 1392
MIL AND DATA LINK CONNECTOR ..................... 1393
Wiring Diagram .................................................... 1393
SERVICE DATA AND SPECIFICATIONS (SDS) ... 1395
Fuel Pressure ....................................................... 1395
Idle Speed and Ignition Timing ............................. 1395
Calculated Load Value ......................................... 1395
Mass Air Flow Sensor .......................................... 1395
Intake Air Temperature Sensor ............................ 1395
Engine Coolant Temperature Sensor ................... 1395
Fuel Tank Temperature Sensor ............................ 1395
Crankshaft Position Sensor (POS) ...................... 1395
Camshaft Position Sensor (PHASE) .................... 1395
Heated Oxygen Sensor 1 Heater ......................... 1395
Heated Oxygen sensor 2 Heater ......................... 1396
Throttle Control Motor .......................................... 1396
Injector ................................................................. 1396
Fuel Pump ............................................................ 1396

EC-30
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ENGINE CONTROL SYSTEM
Revision: 2005 July 2005 FX
ENGINE CONTROL SYSTEMPFP:23710
System DiagramABS006K4
PBIB2281E

BASIC SERVICE PROCEDURE EC-93
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21. CHECK AIR FUEL RATIO (A/F) SENSOR 1 HARNESS
1. Turn ignition switch OFF and disconnect battery ground cable.
2. Disconnect ECM harness connector.
3. Disconnect A/F sensor 1 harness connector.
4. Check harness continuity between the following terminals. Refer to EC-490, "
Wiring Diagram" .
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 22.
NG >> 1. Repair open circuit or short to ground or short to power in harness or connectors between ECM
and A/F sensor 1.
2. GO TO 4.
22. PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1. Reconnect ECM harness connector.
2. Perform EC-96, "
Accelerator Pedal Released Position Learning" .
>> GO TO 23.
23. PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-96, "
Throttle Valve Closed Position Learning" .
>> GO TO 24.
24. PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-97, "
Idle Air Volume Learning" .
Is Idle Air Volume Learning carried out successfully?
Ye s o r N o
Yes (With CONSULT-II)>>GO TO 25.
Yes (Without CONSULT-II)>>GO TO 26.
No >> 1. Follow the instruction of Idle Air Volume Learning.
2. GO TO 4.
A/F sensor 1 terminal ECM terminal
Bank 1 116
275
535
656
Bank 2 176
277
557
658
Continuity should exist.