Power steering diagram INFINITI FX35 2004 Service Manual

AV-1
AUDIO VISUAL, NAVIGATION & TELEPHONE SYS-
TEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION AV
A
B
AV
Revision: 2004 November 2004 FX35/FX45
AUDIO VISUAL, NAVIGATION & TELEPHONE SYSTEM
PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 5
Wiring Diagrams and Trouble Diagnosis .................. 5
PREPARATION ........................................................... 6
Commercial Service Tools ........................................ 6
AUDIO ......................................................................... 7
System Description .................................................. 7
BASE SYSTEM ..................................................... 7
BOSE SYSTEM .................................................... 7
SPEED SENSITIVE VOLUME SYSTEM .............. 8
Component Parts and Harness Connector Location ..... 9
Schematic -Base System- ...................................... 10
WITH NAVIGATION SYSTEM ............................. 10
WITHOUT NAVIGATION SYSTEM ...................... 11
Wiring Diagram -AUDIO- / Base System ............... 12
Schematic -BOSE System- .................................... 19
WITH NAVIGATION SYSTEM ............................. 19
WITHOUT NAVIGATION SYSTEM ..................... 20
Wiring Diagram -AUDIO- / BOSE System .............. 21
Terminals and Reference Value for Audio Unit ....... 30
Terminals and Reference Value for BOSE Speaker
Amp. ....................................................................... 31
Terminals and Reference Value for A/C and AV
Switch ..................................................................... 33
Terminals and Reference Value for Woofer ............ 34
A/C and AV Switch Self-Diagnosis Function .......... 35
STARTING THE SELF-DIAGNOSIS MODE ....... 35
DIAGNOSIS FUNCTION ..................................... 35
EXITING THE SELF-DIAGNOSIS MODE ........... 35
Trouble Diagnosis .................................................. 35
MALFUNCTION WITH RADIO, TAPE AND CD
(BASE SYSTEM) ................................................ 35
MALFUNCTION WITH RADIO, TAPE AND CD
(BOSE SYSTEM) ................................................ 36
FOR RADIO ONLY .............................................. 37
FOR CASSETTE PLAYER ONLY ....................... 37
FOR CD ONLY .................................................... 37
Noise Inspection ..................................................... 38TYPE OF NOISE AND POSSIBLE CAUSE ........ 38
Power Supply Circuit Inspection ............................. 39
Audio Steering Wheel Switch Inspection ................ 40
A/C and AV Switch Inspection ................................ 41
BOSE Speaker Amp. Inspection ............................ 42
Vehicle Speed Signal Inspection ............................ 42
Locking CD Auto-changer Mechanism ................... 44
DAMPER LOCK PROCEDURE .......................... 44
Removal and Installation of Audio Unit ................... 44
REMOVAL ........................................................... 44
INSTALLATION ................................................... 44
Disassembly and Assembly for Audio Unit ............. 45
DISASSEMBLY ................................................... 45
ASSEMBLY ......................................................... 45
Removal and Installation for A/C and AV Switch .... 45
REMOVAL ........................................................... 45
INSTALLATION ................................................... 46
Removal and Installation for Front Door Speaker ... 46
REMOVAL ........................................................... 46
INSTALLATION ................................................... 46
Removal and Installation for Rear Door Speaker ... 46
REMOVAL ........................................................... 46
INSTALLATION ................................................... 46
Removal and Installation for Instrument Speaker ... 47
REMOVAL ........................................................... 47
INSTALLATION ................................................... 47
Removal and Installation for Tweeter ..................... 47
REMOVAL ........................................................... 47
INSTALLATION ................................................... 47
Removal and Installation for Woofer (BOSE Sys-
tem) ........................................................................ 47
REMOVAL ........................................................... 47
INSTALLATION ................................................... 47
Removal and Installation for BOSE Speaker Amp. ... 48
REMOVAL ........................................................... 48
INSTALLATION ................................................... 48
AUDIO ANTENNA .................................................... 49
System Description ................................................. 49
Wiring Diagram — M/ANT — ................................. 50
Terminals and Reference Value for Audio Unit ....... 51

AV-2Revision: 2004 November 2004 FX35/FX45Antenna Amp. Inspection ....................................... 51
Location of Antenna ................................................ 52
Window Antenna Repair ......................................... 52
CHECK ELEMENT .............................................. 52
Removal and Installation of Roof Antenna ............. 54
REMOVAL ........................................................... 54
INSTALLATION .................................................... 54
INTEGRATED DISPLAY SYSTEM ............................ 55
System Description ................................................. 55
A/C AND AV SWITCH SYSTEM .......................... 55
PRECAUTION OF LCD MONITOR ..................... 55
POWER SUPPLY AND GROUND ....................... 55
DRIVE COMPUTER ............................................ 56
E/M SWITCH ....................................................... 57
SETTING SCREEN ............................................. 58
WARNING INDICATIONS ................................... 59
AV COMMUNICATION LINE ............................... 59
CAN Communication System Description .............. 60
CAN Communication Unit ....................................... 61
Component Parts and Harness Connector Location ... 61
Schematic ............................................................... 62
Wiring Diagram — INF/D — ................................... 63
Schematic ............................................................... 68
Wiring Diagram — COMM — ................................. 69
Terminals and Reference Value for Display Unit .... 72
Terminals and Reference Value for A/C and AV
Switch ..................................................................... 73
On Board Self-Diagnosis Function ......................... 74
DESCRIPTION .................................................... 74
DIAGNOSIS ITEM ............................................... 74
Self-Diagnosis Mode .............................................. 74
OPERATION PROCEDURES ............................. 74
NETWORK CHECK ............................................. 75
PARTS CHECK ................................................... 76
HVAC DETAIL SCREEN ...................................... 76
VERSION CHECK ............................................... 76
CAN DIAG MNTR (CAN DIAG MONITOR) ......... 76
A/C and AV Switch Self-Diagnosis Function ........... 77
STARTING THE SELF-DIAGNOSIS MODE ........ 77
DIAGNOSIS FUNCTION ..................................... 77
EXITING THE SELF-DIAGNOSIS MODE ........... 77
Trouble Diagnosis Chart by Symptom .................... 78
Power Supply and Ground Circuit Check for Display
Unit ......................................................................... 79
Power Supply and Ground Circuit Check for A/C and
AV Switch ................................................................ 80
Vehicle Speed Signal Inspection ............................ 80
Illumination Signal Inspection ................................. 81
Ignition Signal Inspection ........................................ 82
Audio Communication Line Inspection ................... 82
A/C and AV Switch Does Not Operate .................... 84
CAN Communication Line Inspection ..................... 85
Audio Steering Wheel Switch Inspection ................ 85
Removal and Installation of Display ........................ 87
REMOVAL ........................................................... 87
INSTALLATION .................................................... 87
Removal and Installation of A/C and AV Switch ..... 87
NAVIGATION SYSTEM ............................................. 88
System Description ................................................. 88TRAVEL DISTANCE ............................................ 88
TRAVEL DIRECTION .......................................... 88
MAP-MATCHING ................................................. 88
GPS (GLOBAL POSITIONING SYSTEM) .......... 89
COMPONENT DESCRIPTION ............................ 90
BIRDVIEW™ ........................................................ 90
MAP DISPLAY ..................................................... 91
FUNCTION OF CENTER SWITCH ..................... 92
“VIEW” MODE ...................................................... 98
“HEADING” MODE .............................................. 99
“NEARBY DISPLAY ICONS” MODE .................... 99
“SAVE CURRENT LOCATION” MODE ................ 99
“ADJUST CURRENT LOCATION” MODE ........... 99
“AUTO RE-ROUTE” MODE ...............................100
“AVOID AREA SETTING” MODE ......................100
“CLEAR MEMORY” MODE ................................100
“EDIT ADDRESS BOOK” MODE .......................101
“GPS INFORMATION” MODE ...........................101
“QUICK STOP CUSTOMER SETTING” MODE .101
“SET AVERAGE SPEED” MODE ......................101
“TRACKING” MODE ..........................................102
GUIDANCE VOLUME ........................................102
DISPLAY WITH PUSHED “TRIP” BUTTON .......102
TRIP 1 OR TRIP 2 .............................................103
FUEL ECONOMY ..............................................103
MAINTENANCE .................................................103
ENGINE OIL OR TIRE ROTATION ....................103
TIRE PRESSURE ..............................................104
WARNING INDICATIONS ..................................104
CAN Communication System Description ............105
CAN Communication Unit .....................................105
Component Parts Location and Harness Connector
Location ................................................................105
Schematic—NAVI— ..............................................106
Wiring Diagram —NAVI— .....................................107
Schematic — COMM — ........................................115
Wiring Diagram — COMM — ................................116
Terminals and Reference Value for NAVI Control
Unit ........................................................................121
Terminals and Reference Value for Display Control
Unit ........................................................................123
Terminals and Reference Value for Display ..........127
Terminals and Reference Value for A/C and AV
Switch ...................................................................129
On Board Self-Diagnosis Function ........................130
DESCRIPTION ..................................................130
DIAGNOSIS ITEM .............................................130
Self-Diagnosis Mode (DCU) ..................................131
OPERATION PROCEDURE ..............................131
SELF–DIAGNOSIS RESULT .............................133
Self-Diagnosis Mode (NAVI) .................................133
OPERATION PROCEDURE ..............................133
SELF–DIAGNOSIS RESULT .............................135
Confirmation/Adjustment Mode .............................136
OPERATION PROCEDURE ..............................136
DISPLAY DIAGNOSIS .......................................136
VEHICLE SIGNALS ...........................................137
AUTO CLIMATE CONTROL ..............................137
NAVIGATION .....................................................138

BL-1
BODY, LOCK & SECURITY SYSTEM
I BODY
CONTENTS
C
D
E
F
G
H
J
K
L
M
SECTION BL
A
B
BL
Revision: 2004 November 2004 FX35/FX45
BODY, LOCK & SECURITY SYSTEM
PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 5
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 5
OPERATION PROCEDURE ................................. 5
Precautions for Work ................................................ 5
Wiring Diagnosis and Trouble Diagnosis ................. 6
PREPARATION ........................................................... 7
Special Service Tools ............................................... 7
Commercial Service Tools ........................................ 7
SQUEAK AND RATTLE TROUBLE DIAGNOSIS ...... 8
Work Flow ................................................................ 8
CUSTOMER INTERVIEW ..................................... 8
DUPLICATE THE NOISE AND TEST DRIVE ....... 9
CHECK RELATED SERVICE BULLETINS ........... 9
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 9
REPAIR THE CAUSE ........................................... 9
CONFIRM THE REPAIR ..................................... 10
Generic Squeak and Rattle Troubleshooting ......... 10
INSTRUMENT PANEL ........................................ 10
CENTER CONSOLE ........................................... 10
DOORS ............................................................... 10
TRUNK ................................................................. 11
SUNROOF/HEADLINING .................................... 11
SEATS .................................................................. 11
UNDERHOOD ...................................................... 11
Diagnostic Worksheet ............................................ 12
HOOD ....................................................................... 14
Fitting Adjustment .................................................. 14
LONGITUDINAL AND LATERAL CLEARANCE
ADJUSTMENT .................................................... 14
FRONT END HEIGHT ADJUSTMENT ............... 14
SURFACE HEIGHT ADJUSTMENT ................... 14
Removal and Installation of Hood Assembly .......... 15
REMOVAL ........................................................... 16
INSTALLATION ................................................... 16
Removal and Installation of Hood Lock Control ..... 16REMOVAL ........................................................... 16
INSTALLATION ................................................... 17
Hood Lock Control Inspection ................................ 17
RADIATOR CORE SUPPORT .................................. 19
Removal and Installation ........................................ 19
REMOVAL ........................................................... 19
INSTALLATION ................................................... 20
FRONT FENDER ...................................................... 21
Removal and Installation ........................................ 21
REMOVAL ........................................................... 21
INSTALLATION ................................................... 21
POWER DOOR LOCK SYSTEM .............................. 22
Component Parts and Harness Connector Location ... 22
Component Parts and Harness Connector Location ... 23
System Description ................................................. 23
OUTLINE ............................................................. 24
CAN Communication System Description .............. 25
CAN Communication Unit ....................................... 25
Schematic (With Intelligent Key) ............................. 26
Wiring Diagram -D/LOCK- (With Intelligent Key) .... 27
FIG. 1 ................................................................... 27
FIG. 2 ................................................................... 28
FIG. 3 ................................................................... 29
FIG. 4 ................................................................... 30
FIG. 5 ................................................................... 31
Schematic (Without Intelligent Key) ........................ 32
Wiring Diagram -D/LOCK- (Without Intelligent Key) ... 33
FIG. 6 ................................................................... 33
FIG. 7 ................................................................... 34
FIG. 8 ................................................................... 35
FIG. 9 ................................................................... 36
Terminals and Reference Value for BCM ............... 37
Terminals and Reference Value for Intelligent Key
Unit (With Intelligent Key System) .......................... 37
Work Flow ............................................................... 37
Preliminary Check .................................................. 38
FUSE AND FUSIBLE LINK CHECK .................... 38
CONSULT-II Function ............................................. 39
CONSULT-II INSPECTION PROCEDURE .......... 39
CONSULT-II APPLICATION ITEMS .................... 40

BL-2Revision: 2004 November 2004 FX35/FX45Trouble Diagnosis Chart by Symptom .................... 41
Check Door Switch ................................................. 42
CHECK DOOR SWITCH (EXCEPT BACK DOOR
SWITCH) ............................................................. 42
CHECK BACK DOOR SWITCH .......................... 44
Check Key Switch ................................................... 46
Check Door Lock and Unlock Switch ..................... 48
Check Door Lock Actuator (Driver side) ................. 50
Check Door Lock Actuator (Passenger Side and
Rear LH/RH) ........................................................... 51
Check Fuel Lid Opener Actuator ............................ 52
Check Front Door Key Cylinder Switch (Lock) ....... 53
Check Front Door Key Cylinder Switch (Unlock) .... 54
Check Select Unlock Relay Circuit ......................... 55
REMOTE KEYLESS ENTRY SYSTEM ..................... 56
Component Parts and Harness Connector Location ... 56
System Description ................................................. 57
INPUTS ............................................................... 57
OPERATED PROCEDURE ................................. 58
CAN Communication System Description .............. 59
CAN Communication Unit ....................................... 59
Schematic ............................................................... 60
Wiring Diagram — KEYLES— ................................ 61
FIG. 1 ................................................................... 61
FIG. 2 ................................................................... 62
FIG. 3 ................................................................... 63
Terminals and Reference Value for BCM ................ 64
Terminals and Reference Value for IPDM E/R ........ 65
CONSULT-II Function ............................................. 65
CONSULT-II INSPECTION PROCEDURE .......... 65
CONSULT-II APPLICATION ITEMS .................... 66
Work Flow ............................................................... 68
Trouble Diagnosis Chart by Symptom .................... 69
Check Key Fob Battery and Function ..................... 71
Check ACC Switch ................................................. 72
Check Door Switch ................................................. 73
CHECK DOOR SWITCH (EXCEPT BACK DOOR
SWITCH) ............................................................. 73
CHECK BACK DOOR SWITCH .......................... 75
Check Key Switch ................................................... 77
Check IPDM E/R Operation .................................... 78
Check Hazard Function .......................................... 79
Check Horn Function .............................................. 79
Check Headlamp Function ..................................... 79
Check Map Lamp and Ignition Keyhole Illumination
Function .................................................................. 79
ID Code Entry Procedure ....................................... 80
KEY FOB ID SET UP WITH CONSULT-II ........... 80
KEY FOB ID SET UP WITHOUT CONSULT-II .... 82
Key Fob Battery Replacement ................................ 83
INTELLIGENT KEY SYSTEM ................................... 84
Component Parts and Harness Connector Location ... 84
System Description ................................................. 86
DOOR LOCK FUNCTION ................................... 86
REMOTE CONTROL ENTRY FUNCTIONS ........ 87
ENGINE STARTUP FUNCTION .......................... 88
WARNING AND ALARM FUNCTION .................. 89
CHANGE SETTINGS FUNCTION ....................... 92
INTELLIGENT KEY REGISTRATION .................. 92STEERING LOCK UNIT REGISTRATION ........... 92
CAN Communication System Description .............. 93
CAN Communication Unit ....................................... 93
Schematic ............................................................... 94
Wiring Diagram — I/KEY— ..................................... 96
Terminals and Reference Value for INTELLIGENT
KEY UNIT .............................................................109
Terminals and Reference Value for Steering Lock
unit ........................................................................ 111
Terminals and Reference Value for BCM .............. 111
Terminals and Reference Value for IPDM E/R ......112
Diagnosis Procedure .............................................113
WORK FLOW ....................................................113
CONSULT-II Functions .........................................114
CONSULT-II Inspection Procedure .......................114
BASIC OPERATION ..........................................114
CONSULT-II Application Items ..............................115
WORK SUPPORT .............................................115
SELF-DIAGNOSTIC RESULTS .........................115
DATA MONITOR ................................................115
ACTIVE TEST ....................................................116
List of Operation Related Parts .............................117
Trouble Diagnosis Symptom Chart .......................118
ALL FUNCTIONS OF THE INTELLIGENT KEY
ARE NOT OPERATING .....................................118
REMOTE CONTROL ENTRY FUNCTION MAL-
FUNCTION ........................................................118
DOOR LOCK FUNCTION MALFUNCTION .......119
ENGINE START FUNCTION MALFUNCTION ..120
WARNING CHIME FUNCTION MALFUNCTION .120
Check CAN Communication System Inspection ...123
Check Intelligent Key Unit Power Supply and
Ground Circuit .......................................................124
Check Key Switch (Intelligent Key Unit Input) .......124
Check Key Switch (BCM Input) .............................126
Check Ignition Knob Switch ..................................127
Check Door Switch ...............................................128
CHECK DOOR SWITCH (EXCEPT BACK DOOR
SWITCH) ............................................................128
CHECK BACK DOOR SWITCH .........................129
Check Unlock Sensor ...........................................131
Check Door Request Switch .................................132
Check Intelligent Key Warning Buzzer ..................134
Check Outside Key Antenna .................................135
Check Inside Key Antenna ....................................138
Check Steering Lock Unit ......................................139
Check Stop Lamp Switch ......................................141
Check Detention Switch ........................................142
Check Select Unlock Relay ...................................144
Check Hazard Function ........................................145
Check Horn Function ............................................145
Check Headlamp Function ....................................145
Check IPDM E/R Operation ..................................145
Removal and Installation of Intelligent Key Unit ....146
REMOVAL ..........................................................146
INSTALLATION ..................................................146
Intelligent Key Inspection ......................................147
INTELLIGENT KEY DISASSEMBLY AND

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
C
D
E
G
H
I
J
K
L
M
SECTION BRC
A
B
BRC
Revision: 2004 November 2004 FX35/FX45
BRAKE CONTROL SYSTEM
VDC/TCS/ABS
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Brake System .................................. 3
Precautions for Brake Control .................................. 3
PREPARATION ........................................................... 5
Special Service Tools ............................................... 5
Commercial Service Tools ........................................ 5
ON-VEHICLE SERVICE ............................................. 6
Adjustment of Steering Angle Sensor Neutral Posi-
tion ........................................................................... 6
Calibration of Decel G-sensor (AWD Model) ............ 6
SYSTEM DESCRIPTION ............................................ 8
System Diagram ....................................................... 8
VDC Function ........................................................... 8
TCS Function ........................................................... 8
ABS Function ........................................................... 8
EBD Function ........................................................... 9
Fail-Safe Function .................................................... 9
VDC / TCS SYSTEM ............................................. 9
ABS, EBD SYSTEM .............................................. 9
Hydraulic Circuit Diagram ...................................... 10
CAN COMMUNICATION ...........................................11
System Description ................................................. 11
TROUBLE DIAGNOSIS ............................................ 12
How to Proceed With Diagnosis ............................. 12
BASIC CONCEPT ............................................... 12
DIAGNOSIS FLOWCHART ................................ 13
ASKING COMPLAINTS ...................................... 14
EXAMPLE OF DIAGNOSIS SHEET ................... 14
Component Installation Location ............................ 15
Schematic .............................................................. 16
Wiring Diagram — VDC — ..................................... 17
Control Unit Input/Output Signal Standard ............. 23
REFERENCE VALUE FROM CONSULT-II ......... 23
CONSULT-II Functions ........................................... 25
CONSULT-II MAIN FUNCTION ........................... 25
CONSULT-II BASIC OPERATION PROCEDURE ... 26
SELF-DIAGNOSIS .............................................. 27
DATA MONITOR ................................................. 30
ACTIVE TEST ..................................................... 33
For Fast and Accurate Diagnosis ........................... 35
PRECAUTIONS FOR DIAGNOSIS ..................... 35
Basic Inspection ..................................................... 36
BASIC INSPECTION 1: BRAKE FLUID
AMOUNT, LEAKS, AND BRAKE PADS INSPEC-
TION .................................................................... 36
BASIC INSPECTION 2: POWER SYSTEM TER-
MINAL LOOSENESS AND BATTERY INSPEC-
TION .................................................................... 36
BASIC INSPECTION 3: ABS WARNING LAMP,
VDC OFF INDICATOR LAMP, SLIP INDICATOR
LAMP AND BRAKE WARNING LAMP INSPEC-
TION .................................................................... 37
Inspection 1: Wheel Sensor System ....................... 37
Inspection 2: Engine System .................................. 39
Inspection 3: VDC/TCS/ABS Control Unit System ... 40
Inspection 4: Pressure Sensor System .................. 40
Inspection 5: Steering Angle Sensor System ......... 42
Inspection 6: Yaw Rate/Side G-Sensor (2WD
model), Yaw Rate/Side/Decel G-sensor (AWD mod-
els) System ............................................................. 44
Inspection 7: Solenoid and VDC Change-Over
Valve System .......................................................... 46
Inspection 8: Actuator Motor System ...................... 47
Inspection 9: ABS Actuator and Electric Unit (Con-
trol Unit) Power Supply and Ground System .......... 48
Inspection 10: Stop Lamp Switch System .............. 50
Inspection 11: Brake Fluid Level Switch System .... 51
Inspection 12: When “ST ANG SEN SIGNAL”
Appears on Self-Diagnosis Results Display ........... 52
Inspection 13: When “DECEL G SEN SET” Appears
on Self-Diagnosis Results Display (AWD Model) ... 52
Inspection 14: CAN Communication System .......... 53
Component Inspection ............................................ 53
VDC OFF SWITCH ............................................. 53
Symptom 1: Excessive ABS Function Operation

BRC-8
[VDC/TCS/ABS]
SYSTEM DESCRIPTION
Revision: 2004 November 2004 FX35/FX45
SYSTEM DESCRIPTIONPFP:00000
System DiagramAFS001SB
VDC FunctionAFS001SC

In addition to the TCS/ABS function, the driver steering amount and brake operation amount are detected
from steering angle sensor and pressure sensor, and the vehicle's driving status (amount of under steer-
ing / over steering) is determined from information from G-sensor, wheel sensor, etc., and this information
is used to improve vehicle stability by controlling the braking and engine power to all four wheels.

SLIP indicator lamp flashes to inform the driver of VDC operation.

During VDC operation, body and brake pedal lightly vibrate and mechanical noises may be heard. This is
normal.

ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp might turn on when vehicle is sub-
ject to strong shaking or large vibration, such as when vehicle is on a turn table, a ship or a steep slope
such as bank while engine is running. In this case, restart engine on a normal road, and if ABS warning
lamp, VDC OFF indicator lamp, and SLIP indicator lamp turn off, there is no problem.
TCS FunctionAFS001SD

The wheel spin of the drive wheels is detected by ABS actuator and electric unit (control unit) from the
wheel speed signals from four wheels, so if wheel spin occurs, drive wheel right and left brake fluid pres-
sure control and engine fuel cut are performed while throttle value is restricted to reduce the engine
torque and decrease the amount of wheel spin. In addition, the degree throttle is opened is controlled to
achieve the optimum engine torque.

Depending on road circumstances, the driver may have a sluggish feel. This is normal, because the opti-
mum traction has the highest priority under TCS operation.

TCS may be activated any time vehicle suddenly accelerates, suddenly down/upshifts, or is driven on a
road with a varying surface friction coefficient.

During TCS operation, it informs a driver of system operation by flashing SLIP indicator lamp.
ABS FunctionAFS001SE

The anti-lock brake system is a function that detects wheel revolution while braking, and it improves han-
dling stability during sudden braking by electrically preventing 4 wheel lock. Maneuverability is also
improved for avoiding obstacles.

If the electrical system breaks down, then the fail-safe function starts, the ABS becomes inoperative, and
ABS warning lamp turns on.

Electrical system diagnosis by CONSULT-II is available.

During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
SFIA1160E

EC-12Revision: 2004 November 2004 FX35/FX451095
On Board Diagnosis Logic ...................................1095
DTC Confirmation Procedure ..............................1095
Wiring Diagram ....................................................1096
Diagnostic Procedure ..........................................1099
Component Inspection .........................................11 0 2
Removal and Installation .....................................11 0 2
DTC P1143, P1163 HO2S1 ....................................110 3
Component Description .......................................11 0 3
CONSULT-II Reference Value in Data Monitor Mode
11 0 3
On Board Diagnosis Logic ...................................11 0 3
DTC Confirmation Procedure ..............................11 0 4
Overall Function Check .......................................11 0 5
Diagnostic Procedure ..........................................11 0 5
Component Inspection .........................................11 0 7
Removal and Installation .....................................11 0 8
DTC P1144, P1164 HO2S1 ....................................110 9
Component Description .......................................11 0 9
CONSULT-II Reference Value in Data Monitor Mode
11 0 9
On Board Diagnosis Logic ...................................11 0 9
DTC Confirmation Procedure ..............................111 0
Overall Function Check .......................................1111
Diagnostic Procedure ..........................................1111
Component Inspection .........................................111 3
Removal and Installation .....................................111 5
DTC P1146, P1166 HO2S2 ....................................111 6
Component Description .......................................111 6
CONSULT-II Reference Value in Data Monitor Mode
111 6
On Board Diagnosis Logic ...................................111 6
DTC Confirmation Procedure ..............................111 7
Overall Function Check .......................................111 7
Wiring Diagram ....................................................111 9
Diagnostic Procedure ..........................................11 2 2
Component Inspection .........................................11 2 5
Removal and Installation .....................................11 2 6
DTC P1147, P1167 HO2S2 ....................................112 7
Component Description .......................................11 2 7
CONSULT-II Reference Value in Data Monitor Mode
11 2 7
On Board Diagnosis Logic ...................................11 2 7
DTC Confirmation Procedure ..............................11 2 8
Overall Function Check .......................................11 2 8
Wiring Diagram ....................................................11 3 0
Diagnostic Procedure ..........................................11 3 3
Component Inspection .........................................11 3 6
Removal and Installation .....................................11 3 7
DTC P1148, P1168 CLOSED LOOP CONTROL ...113 8
On Board Diagnosis Logic ...................................11 3 8
DTC Confirmation Procedure ..............................11 3 8
Overall Function Check .......................................11 3 9
Diagnostic Procedure ..........................................11 3 9
DTC P1211 TCS CONTROL UNIT .........................114 0
Description ...........................................................11 4 0
On Board Diagnosis Logic ...................................11 4 0
DTC Confirmation Procedure ..............................11 4 0
Diagnostic Procedure ..........................................11 4 0DTC P1212 TCS COMMUNICATION LINE ............11 41
Description ...........................................................11 4 1
On Board Diagnosis Logic ...................................11 4 1
DTC Confirmation Procedure ...............................11 4 1
Diagnostic Procedure ...........................................11 4 1
DTC P1217 ENGINE OVER TEMPERATURE .......11 42
Description ...........................................................11 4 2
CONSULT-II Reference Value in Data Monitor Mode
11 4 3
On Board Diagnosis Logic ...................................11 4 3
Overall Function Check ........................................11 4 3
Wiring Diagram ....................................................11 4 5
Diagnostic Procedure ...........................................11 4 7
Main 12 Causes of Overheating ..........................11 5 0
Component Inspection .........................................11 5 1
DTC P1225 TP SENSOR .......................................11 52
Component Description .......................................11 5 2
On Board Diagnosis Logic ...................................11 5 2
DTC Confirmation Procedure ...............................11 5 2
Diagnostic Procedure ...........................................11 5 3
Removal and Installation ......................................11 5 3
DTC P1226 TP SENSOR .......................................11 54
Component Description .......................................11 5 4
On Board Diagnosis Logic ...................................11 5 4
DTC Confirmation Procedure ...............................11 5 4
Diagnostic Procedure ...........................................11 5 5
Removal and Installation ......................................11 5 5
DTC P1229 SENSOR POWER SUPPLY ...............11 56
On Board Diagnosis Logic ...................................11 5 6
DTC Confirmation Procedure ...............................11 5 6
Wiring Diagram ....................................................11 5 7
Diagnostic Procedure ...........................................11 5 8
DTC P1444 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE ..............................11 60
Description ...........................................................11 6 0
CONSULT-II Reference Value in Data Monitor Mode
11 6 0
On Board Diagnosis Logic ...................................11 6 1
DTC Confirmation Procedure ...............................11 6 1
Wiring Diagram ....................................................11 6 2
Diagnostic Procedure ...........................................11 6 4
Component Inspection .........................................11 6 7
Removal and Installation ......................................11 6 7
DTC P1446 EVAP CANISTER VENT CONTROL
VALVE .....................................................................11 68
Component Description .......................................11 6 8
CONSULT-II Reference Value in Data Monitor Mode
11 6 8
On Board Diagnosis Logic ...................................11 6 8
DTC Confirmation Procedure ...............................11 6 9
Wiring Diagram ....................................................11 7 0
Diagnostic Procedure ...........................................11 7 1
Component Inspection .........................................11 7 2
DTC P1564 ICC STEERING SWITCH ...................11 74
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 4

EC-492
[VQ35DE]
DTC P1229 SENSOR POWER SUPPLY
Revision: 2004 November 2004 FX35/FX45
2. CHECK ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness
connector.
2. Turn ignition switch ON.
3. Check voltage between APP sensor terminal 6 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. CHECK SENSOR POWER SUPPLY CIRCUITS
Check the following.

Harness for short to power and short to ground, between the following terminals.

ECM pin terminal.
OK or NG
OK >> GO TO 4.
NG >> Repair short to ground or short to power in harness or connectors.
4. CHECK COMPONENTS
Check the following.

Refrigerant pressure sensor (Refer to AT C - 9 0 , "COMPONENT INSPECTION" .)

Power steering pressure sensor (Refer to EC-400, "Component Inspection" .)

EVAP control system pressure sensor (Refer to EC-351, "Component Inspection" .)
OK or NG
OK >> GO TO 7.
NG >> Replace malfunctioning component.
PBIB1580E
Voltage: Approximately 5V
PBIB0914E
ECM terminal Sensor terminal Reference Wiring Diagram
90 APP sensor terminal 6EC-557
49 Refrigerant pressure sensor terminal 1EC-610
91 PSP sensor terminal 1EC-397
48 EVAP control system pressure sensor terminal 3EC-354

DTC P1564 ICC STEERING SWITCH
EC-513
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2004 November 2004 FX35/FX45
3. CHECK ICC STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect combination switch harness connector.
3. Disconnect ECM harness connector.
4. Check harness continuity between combination switch terminal
15 and ECM terminal 82.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.

Combination switch (spiral cable)

Harness for open and short between ECM and combination switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK ICC STEERING SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 99 and combination switch terminal 14.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.

Combination switch (spiral cable)

Harness for open and short between ECM and combination switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK ICC STEERING SWITCH
Refer to EC-514, "
Component Inspection" .
OK or NG
OK >> GO TO 8.
NG >> Replace ICC steering switch.
8. CHECK INTERMITTENT INCIDENT
Refer to EC-135, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.
PBIB1540E
Continuity should exist.

DTC P1564 ASCD STEERING SWITCH
EC-519
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2004 November 2004 FX35/FX45
2. CHECK ASCD STEERING SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON.
2. Select “MAIN SW”, “RESUME/ACC SW”, “SET SW” and “CANCEL SW” in “DATA MONITOR” mode with
CONSULT-II.
3. Check each item indication under the following conditions.
Without CONSULT-II
1. Turn ignition switch ON.
2. Check voltage between ECM terminal 99 and ground with press-
ing each button.
OK or NG
OK >> GO TO 8.
NG >> GO TO 3.
3. CHECK ASCD STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect combination switch harness connector.
3. Disconnect ECM harness connector.
4. Check harness continuity between combination switch terminal
15 and ECM terminal 82. Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
Switch Monitor item Condition Indication
ON/OFF(MAIN) switch MAIN SWPressed ON
Released OFF
COAST/SET switch SET SWPressed ON
Released OFF
ACCEL/RESUME switch RESUME/ACC SWPressed ON
Released OFF
CANCEL switch CANCEL SWPressed ON
Released OFF
SEC006D
Switch Condition Voltage [V]
ON/OFF(MAIN) switchPressed Approx. 0
Released Approx. 4
COAST/SET switchPressed Approx. 2
Released Approx. 4
ACCEL/RESUME switchPressed Approx. 3
Released Approx. 4
CANCEL switchPressed Approx. 1
Released Approx. 4
PBIB0311E
Continuity should exist.
PBIB1513E