fuel INFINITI QX4 2005 Factory Owner's Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2005, Model line: QX4, Model: INFINITI QX4 2005Pages: 3419, PDF Size: 80.18 MB
Page 1116 of 3419
COMBINATION METERS
DI-13
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: October 20052005 QX56
Meter/Gauge Operation and Odo/Trip MeterEKS00BC0
SELF-DIAGNOSIS FUNCTION
The following items can be checked during Combination Meter Self-Diagnosis Mode.
Gauge sweep and present gauge values.
Illuminates all odometer, fuel, and engine temperature segments.
Illuminates all micro controlled lamps/LED's regardless of switch configuration.
Displays estimated present battery voltage.
Displays seat belt buckle switch LH status.
HOW TO INITIATE COMBINATION METER SELF- DIAGNOSIS MODE
NOTE:
Once entered, Combination Meter Self-Diagnosis Mode will function with the ignition switch in ON or START.
Combination Meter Self-Diagnosis Mode will exit upon turning the ignition switch to OFF or ACC.
To initiate Combination Meter Self-Diagnosis Mode, refer to the following procedure.
1. Turn the ignition switch ON, while holding the odometer/trip meter switch for 5 - 8 seconds.
NOTE:
If the diagnosis function is activated the odometer/trip meter will display tESt.
COMBINATION METER SELF-DIAGNOSIS MODE FUNCTIONS
To interpret Combination Meter Self-Diagnosis Mode functions, refer to the following table.
Event Odometer Display Description of Test/Data Notes:
Odometer/trip meter A/B
switch held from 5 to 8
seconds (or until
released)tESt Initiating self-diagnosis mode
Odometer/trip meter A/B
switch engaged and
released = next test
requestedrXXXX, FAILReturn to normal opera-
tion of all lamps/LEDs and
displays hex ROM rev. If
a ROM checksum fault
exists, display alternates
between "r XXXX" and
"FAIL".
Next test requested nrXXXXDisplays hex ROM rev as
stored in NVM.
Next test requested GAGEPerforms sweep of all
gauges, then displays
present gauge values.
Performs checksum tests
on ROM and EE.Gauges sweep within 10 sec-
onds
Next test requested (All segments illuminated)Lights all odometer/trip
meter, fuel, and engine
temperature display seg-
ments.Initiating self-diagnosis mode
complete
Next test requested bulbIlluminates all micro-con-
trolled lamps/LEDs
regardless of SW configu-
ration.
Next test requested EE XX, FAILHex EE level. If EE
checksum fault exists,
display alternates
between "EE XX" and
"FAIL".
Next test requested dtXXXXHex coding of final manu-
facturing test date.
Page 1117 of 3419
DI-14
COMBINATION METERS
Revision: October 20052005 QX56
Next test requested Sc1XXDisplays 8-bit software
configuration value in Hex
format.Bit Coding
7-3 = reserved for future use
2 = TCS/VDC 0 = not present
1 = present
1 = Shift type 0 = Column shift
1 = Floor shift
0 = ICC 0 = not present
1 = present
Next test requested Sc2XXDisplays 8-bit software
configuration value in Hex
format.Bit coding
7-0 = Reserved for future use
Next test requested EprXXDisplays 8-bit software
configuration value in Hex
format.Bit Coding
7-2 = reserved for future use
1 = A/T Oil Temp (gauge)
0 = not present
1 = present
1 = Odo Units 0 = kilometers
1 = miles
Next test requested 1nFXXDisplays 8-bit market info
value in Hex format.$31 = USA
$2A = Canada
$0E = GCC
Next test requested cYLXXDisplays 8-bit engine con-
figuration value in Hex
format.$08 = 8 cylinder
$06 = 6 cylinder
Next test requested FFXXXXDisplays 16-bit fuel flow
constant "Q" in tenths of
cc/min in Hex format.$0000 - $FFFF
Next test requested tFDisplays 16-bit tire factor
"A" in hundredths in Hex
format.$0000 - $FFFF
Next test requested ot1XXDisplays oil pressure tell-
tale "on" threshold in A/D
counts in Hex format.$00 - $FF
Next test requested ot0XXDisplays oil pressure tell-
tale "off" threshold in A/D
counts in Hex format.$00 - $FF
Next test requested XXXXXRaw uncompensated
english speed value in
hundredths of MPH.
Speedometer indicates
present speed.Will display "-----" if message is
not received. Will display
"99999" if data received is
invalid
Next test requested XXXXXRaw uncompensated
metric speed value in
hundredths of KPH.
Speedometer indicates
present speed.Will display "-----" if message is
not received. Will display
"99999" if data received is
invalid
Next test requested tXXXXTachometer value in
RPM. Tachometer indi-
cates present RPM.Will display "-----" if message is
not received.
Next test requested F1 XXXXPresent ratioed fuel level
A/D input 1 in decimal for-
mat. Fuel gauge indicates
present filtered level.000-009 = Short circuit
010-254 = Normal range
255 = Open circuit
--- = Missing 5 seconds
Next test requested XXXCLast temperature gauge
input value in degrees C.
Temperature gauge indi-
cates present filtered tem-
perature.Will display "---"C if message is
not received.
Will display "999" if data
received is invalid. Event Odometer Display Description of Test/Data Notes:
Page 1122 of 3419
COMBINATION METERS
DI-19
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: October 20052005 QX56
Symptom ChartEKS00BC4
Vehicle Speed Signal InspectionEKS00BC5
1. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
Refer to BRC-29, "
SELF-DIAGNOSIS" .
OK or NG
OK >> Replace the combination meter. Refer to IP-13, "Combination Meter" .
NG >> Perform the "Diagnostic Procedure" for displayed DTC. Refer to BRC-11, "
TROUBLE DIAGNO-
SIS" .
Engine Oil Pressure Signal Inspection EKS00BC6
1. CHECK OIL PRESSURE SENSOR SIGNAL
1. Turn ignition switch ON.
2. Check voltage between combination meter harness connector
M24 terminal 20 (Y) and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
Trouble phenomenon Possible cause
Improper tachometer indication. Refer to DI-21, "
Engine Speed Signal Inspection" .
Improper water temperature gauge indication. Refer to DI-21, "
Water Temperature Signal Inspection" .
Improper speedometer or odometer. Refer to DI-19, "
Vehicle Speed Signal Inspection" .
Improper fuel gauge indication.
Refer to DI-22, "
Fuel Level Sensor Unit Inspection" .
Fuel warning lamp indication is irregular.
Improper A/T oil temperature gauge indicationRefer to AT-126, "
DTC P1710 A/T FLUID TEMPERATURE SEN-
SOR CIRCUIT" .
Improper voltage gauge indication
Replace combination meter. Refer to IP-13, "
Combination Meter"
.
More than one gauge does not give proper indication.
Improper A/T position indication. Refer to DI-40, "
A/T INDICATOR" .
Illumination control does not operate properly. Refer to LT-152, "
ILLUMINATION" .
Te r m i n a l s
Condition Voltage (V) (+)
(–)
ConnectorTe r m i n a l
(Wire color)
M24 20 (Y) GroundWhen ignition switch is in ON
position. (Engine stopped)Ye s
Engine running. (Idle speed) Yes
WKIA1833E
Page 1125 of 3419
DI-22
COMBINATION METERS
Revision: October 20052005 QX56
Fuel Level Sensor Unit InspectionEKS00BC9
FUEL LEVEL SENSOR UNIT
The following symptoms do not indicate a malfunction.
Depending on vehicle position or driving circumstance, the fuel in the tank shifts and the indication may
fluctuate.
If the vehicle is fueled with the ignition switch ON, the indication will update slowly.
If the vehicle is tilted when the ignition switch is turned ON, fuel in the tank may flow to one direction
resulting in a change of reading.
LOW-FUEL WARNING LAMP
Depending on vehicle posture or driving circumstances, the fuel level in the tank varies, and the warning lamp
ON timing may be changed.
1. CHECK SELF-DIAGNOSIS
Perform the combination meter self-diagnosis. Refer to DI-13, "
SELF-DIAGNOSIS FUNCTION" .
OK or NG
OK >> GO TO 2.
NG >> Replace the combination meter. Refer to IP-13, "
Combination Meter" .
2. CHECK HARNESS CONNECTOR
1. Turn the ignition switch OFF.
2. Check combination meter and fuel level sensor unit and fuel pump terminals (meter-side, and harness-
side) for poor connection.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace terminals or connectors.
3. CHECK HARNESS CONNECTOR OUTPUT SIGNAL
1. Disconnect fuel level sensor unit and fuel pump connector.
2. Turn ignition switch ON.
3. Check voltage between combination meter harness connector
M24 terminal 15 (Y/L) and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace the combination meter. Refer to IP-13, "
Combi-
nation Meter" . Battery voltageWKIA1816E
Page 1126 of 3419
COMBINATION METERS
DI-23
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: October 20052005 QX56
4. CHECK HARNESS FOR OPEN OR SHORT CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect combination meter connector M24.
3. Check continuity between fuel level sensor unit and fuel pump
harness connector C5 (A) terminal 2 (Y/L) and combination
meter harness connector M24 (B) terminal 15 (Y/L).
4. Check continuity between fuel level sensor unit and fuel pump
harness connector C5 (A) terminal 2 (Y/L) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK FUEL LEVEL SENSOR CIRCUIT
1. Check continuity between combination meter harness connector
M24 terminal 16 (B/P) and fuel level sensor unit and fuel pump
harness connector C5 terminal 5 (B/P).
2. Check continuity between fuel level sensor unit and fuel pump
harness connector C5 terminal 5 (B/P) and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK FUEL LEVEL SENSOR UNIT
Check the fuel level sensor unit. Refer to DI-25, "
FUEL LEVEL SENSOR UNIT CHECK" .
OK or NG
OK >> GO TO 7.
NG >> Replace the fuel level sensor unit. Refer to FL-5, "
Removal and Installation" .
7. CHECK INSTALLATION CONDITION
Check fuel level sensor unit installation, and determine whether the float arm interferes or binds with any of the
internal components in the fuel tank.
OK or NG
OK >> Replace the combination meter. Refer to IP-13, "Combination Meter" .
NG >> Install the fuel level sensor unit properly.Continuity should exist.
Continuity should not exist.
WKIA4617E
Continuity should exist.
Continuity should not exist.
WKIA2071E
Page 1127 of 3419
DI-24
COMBINATION METERS
Revision: October 20052005 QX56
Fuel Gauge Fluctuates, Indicates Wrong Value, or VariesEKS00BCA
1. CHECK FUEL GAUGE FLUCTUATION
Test drive vehicle to see if gauge fluctuates only during driving or just before or just after stopping.
Does the indication value vary only during driving or just before or just after stopping?
YES >> The fluctuation may be caused by fuel level change in the fuel tank. Condition is normal.
NO >> Ask the customer about the situation when the symptom occurs in detail, Refer to DI-22, "
Fuel
Level Sensor Unit Inspection" .
Fuel Gauge Does Not Move to Full-positionEKS00BCB
1. CHECK POINTER MOVEMENT TO FULL-POSITION
Does it take a long time for the pointer to move to full-position?
YES or NO
YES >> GO TO 2.
NO >> GO TO 3.
2. CHECK IGNITION SWITCH POSITION
Was the vehicle fueled with the ignition switch ON?
YES or NO
YES >> Be sure to fuel the vehicle with the ignition switch OFF. Otherwise, it will take a long time for the
pointer to move to full-position because of the characteristic of the fuel gauge.
NO >> GO TO 3.
3. OBSERVE VEHICLE POSITION
Is the vehicle parked on an incline?
YES or NO
YES >> Check the fuel level indication with vehicle on a level surface.
NO >> GO TO 4.
4. CHECK POINTER MOVEMENT TO EMPTY-POSITION
During driving, does the fuel gauge move gradually toward empty-position?
YES or NO
YES >> Check the fuel level sensor unit. Refer to DI-25, "FUEL LEVEL SENSOR UNIT CHECK" .
NO >> Check fuel level sensor unit installation, and determine whether the float arm interferes or binds
with any of the internal components in the fuel tank.
Page 1128 of 3419
COMBINATION METERS
DI-25
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: October 20052005 QX56
Electrical Components InspectionEKS00BCC
FUEL LEVEL SENSOR UNIT CHECK
For removal, refer to FL-5, "Removal and Installation" .
Check Fuel Level Sensor Unit and Fuel Pump
Check resistance between fuel level sensor unit and fuel pump con-
nector terminals 2 and 5.
*1 and *2: When float rod is in contact with stopper.
Removal and Installation of Combination MeterEKS00BCD
Refer to IP-13, "Combination Meter" for removal and installation procedures.
Terminals Float position mm (in)Resistance
value Ω
(Approx.)
25*1 Empty 25.86 (1.02) 81.66
*2 Full 254.6 (10.02) 6.98
LKIA0402E
Page 1192 of 3419
EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
C
D
E
F
G
H
I
J
K
L
M
SECTION EC
A
EC
Revision: October 20052005 QX56 INDEX FOR DTC ........................................................ 8
DTC No. Index ......................................................... 8
Alphabetical Index .................................................. 12
PRECAUTIONS ........................................................ 16
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................ 16
On Board Diagnostic (OBD) System of Engine and
A/T .......................................................................... 16
Precaution .............................................................. 16
Wiring Diagrams and Trouble Diagnosis ................ 19
PREPARATION ......................................................... 20
Special Service Tools ............................................. 20
Commercial Service Tools ...................................... 22
ENGINE CONTROL SYSTEM .................................. 23
System Diagram ..................................................... 23
Multiport Fuel Injection (MFI) System .................... 24
Electronic Ignition (EI) System ............................... 26
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................... 27
AIR CONDITIONING CUT CONTROL ..................... 28
Input/Output Signal Chart ....................................... 28
System Description ................................................ 28
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ... 29
System Description ................................................ 29
Component Description .......................................... 30
CAN COMMUNICATION .......................................... 31
System Description ................................................ 31
EVAPORATIVE EMISSION SYSTEM ....................... 32
Description ............................................................. 32
Component Inspection ........................................... 35
Removal and Installation ........................................ 36
How to Detect Fuel Vapor Leakage ....................... 37
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ...................................................................... 39
System Description ................................................ 39
Diagnostic Procedure ............................................. 40
Component Inspection ........................................... 43
POSITIVE CRANKCASE VENTILATION ................. 45Description .............................................................. 45
Component Inspection ............................................ 45
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ........................................................................ 47
Description .............................................................. 47
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 48
Introduction ............................................................. 48
Two Trip Detection Logic ........................................ 48
Emission-related Diagnostic Information ................ 49
Malfunction Indicator Lamp (MIL) ........................... 64
OBD System Operation Chart ................................ 66
BASIC SERVICE PROCEDURE ............................... 72
Basic Inspection ..................................................... 72
Idle Speed and Ignition Timing Check .................... 77
Idle Mixture Ratio Adjustment ................................. 79
VIN Registration ..................................................... 90
Accelerator Pedal Released Position Learning ...... 90
Throttle Valve Closed Position Learning ................. 90
Idle Air Volume Learning ........................................ 91
Fuel Pressure Check .............................................. 93
TROUBLE DIAGNOSIS ............................................ 95
Trouble Diagnosis Introduction ............................... 95
DTC Inspection Priority Chart ...............................101
Fail-safe Chart ......................................................103
Symptom Matrix Chart ..........................................104
Engine Control Component Parts Location ..........108
Vacuum Hose Drawing .........................................114
Circuit Diagram .....................................................115
ECM Harness Connector Terminal Layout ...........117
ECM Terminals and Reference Value ...................117
CONSULT-II Function (ENGINE) ..........................126
Generic Scan Tool (GST) Function .......................139
CONSULT-II Reference Value in Data Monitor .....141
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................144
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .146
Description ............................................................146
Testing Condition ..................................................146
Inspection Procedure ............................................146
Diagnostic Procedure ...........................................147
Page 1193 of 3419
EC-2Revision: October 20052005 QX56 TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .......................................................................156
Description ............................................................156
Diagnostic Procedure ...........................................156
POWER SUPPLY AND GROUND CIRCUIT ...........157
Wiring Diagram .....................................................157
Diagnostic Procedure ...........................................158
Ground Inspection ................................................162
DTC U1000, U1001 CAN COMMUNICATION LINE .163
Description ............................................................163
On Board Diagnosis Logic ....................................163
DTC Confirmation Procedure ...............................163
Wiring Diagram .....................................................164
Diagnostic Procedure ...........................................165
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER .166
Description ............................................................166
CONSULT-II Reference Value in Data Monitor Mode
.166
On Board Diagnosis Logic ....................................166
DTC Confirmation Procedure ...............................167
Wiring Diagram .....................................................168
Diagnostic Procedure ...........................................171
Component Inspection ..........................................173
Removal and Installation ......................................173
DTC P0101 MAF SENSOR .....................................174
Component Description ........................................174
CONSULT-II Reference Value in Data Monitor Mode
.174
On Board Diagnosis Logic ....................................174
DTC Confirmation Procedure ...............................175
Overall Function Check ........................................176
Wiring Diagram .....................................................177
Diagnostic Procedure ...........................................178
Component Inspection ..........................................181
Removal and Installation ......................................182
DTC P0102, P0103 MAF SENSOR .........................183
Component Description ........................................183
CONSULT-II Reference Value in Data Monitor Mode
.183
On Board Diagnosis Logic ....................................183
DTC Confirmation Procedure ...............................184
Wiring Diagram .....................................................185
Diagnostic Procedure ...........................................186
Component Inspection ..........................................189
Removal and Installation ......................................190
DTC P0112, P0113 IAT SENSOR ...........................191
Component Description ........................................191
On Board Diagnosis Logic ....................................191
DTC Confirmation Procedure ...............................191
Wiring Diagram .....................................................192
Diagnostic Procedure ...........................................193
Component Inspection ..........................................194
Removal and Installation ......................................194
DTC P0117, P0118 ECT SENSOR ..........................195
Component Description ........................................195
On Board Diagnosis Logic ....................................195
DTC Confirmation Procedure ...............................196
Wiring Diagram .....................................................197
Diagnostic Procedure ...........................................198Component Inspection .......................................... 199
Removal and Installation ....................................... 200
DTC P0122, P0123 TP SENSOR ............................ 201
Component Description ........................................ 201
CONSULT-II Reference Value in Data Monitor Mode
. 201
On Board Diagnosis Logic .................................... 201
DTC Confirmation Procedure ................................ 202
Wiring Diagram ..................................................... 203
Diagnostic Procedure ............................................ 204
Component Inspection .......................................... 207
Removal and Installation ....................................... 207
DTC P0125 ECT SENSOR ...................................... 208
Component Description ........................................ 208
On Board Diagnosis Logic .................................... 208
DTC Confirmation Procedure ................................ 209
Diagnostic Procedure ............................................ 209
Component Inspection .......................................... 210
Removal and Installation ....................................... 210
DTC P0127 IAT SENSOR ........................................211
Component Description ........................................211
On Board Diagnosis Logic ....................................211
DTC Confirmation Procedure ................................211
Diagnostic Procedure ............................................ 212
Component Inspection .......................................... 213
Removal and Installation ....................................... 213
DTC P0128 THERMOSTAT FUNCTION ................. 214
On Board Diagnosis Logic .................................... 214
DTC Confirmation Procedure ................................ 214
Diagnostic Procedure ............................................ 214
Component Inspection .......................................... 215
Removal and Installation ....................................... 215
DTC P0138, P0158 HO2S2 ..................................... 216
Component Description ........................................ 216
CONSULT-II Reference Value in Data Monitor Mode
. 216
On Board Diagnosis Logic .................................... 216
DTC Confirmation Procedure ................................ 217
Wiring Diagram ..................................................... 218
Diagnostic Procedure ............................................ 221
Component Inspection .......................................... 223
Removal and Installation ....................................... 224
DTC P0139, P0159 HO2S2 ..................................... 225
Component Description ........................................ 225
CONSULT-II Reference Value in Data Monitor Mode
. 225
On Board Diagnosis Logic .................................... 225
DTC Confirmation Procedure ................................ 226
Overall Function Check ......................................... 226
Wiring Diagram ..................................................... 228
Diagnostic Procedure ............................................ 231
Component Inspection .......................................... 234
Removal and Installation ....................................... 235
DTC P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION .............................................................. 236
On Board Diagnosis Logic .................................... 236
DTC Confirmation Procedure ................................ 236
Wiring Diagram ..................................................... 238
Diagnostic Procedure ............................................ 240
Page 1194 of 3419
EC-3
C
D
E
F
G
H
I
J
K
L
M
ECA
Revision: October 20052005 QX56 DTC P0172, P0175 FUEL INJECTION SYSTEM
FUNCTION .............................................................. 245
On Board Diagnosis Logic ................................... 245
DTC Confirmation Procedure ............................... 245
Wiring Diagram .................................................... 247
Diagnostic Procedure ........................................... 249
DTC P0181 FTT SENSOR ...................................... 253
Component Description ........................................ 253
On Board Diagnosis Logic ................................... 253
DTC Confirmation Procedure ............................... 253
Wiring Diagram .................................................... 255
Diagnostic Procedure ........................................... 256
Component Inspection ......................................... 258
Removal and Installation ...................................... 258
DTC P0182, P0183 FTT SENSOR ......................... 259
Component Description ........................................ 259
On Board Diagnosis Logic ................................... 259
DTC Confirmation Procedure ............................... 259
Wiring Diagram .................................................... 260
Diagnostic Procedure ........................................... 261
Component Inspection ......................................... 263
Removal and Installation ...................................... 263
DTC P0222, P0223 TP SENSOR ........................... 264
Component Description ........................................ 264
CONSULT-II Reference Value in Data Monitor Mode
. 264
On Board Diagnosis Logic ................................... 264
DTC Confirmation Procedure ............................... 265
Wiring Diagram .................................................... 266
Diagnostic Procedure ........................................... 267
Component Inspection ......................................... 270
Removal and Installation ...................................... 270
DTC P0300 - P0308 MULTIPLE CYLINDER MIS-
FIRE, NO. 1 - 8 CYLINDER MISFIRE ..................... 271
On Board Diagnosis Logic ................................... 271
DTC Confirmation Procedure ............................... 271
Diagnostic Procedure ........................................... 272
DTC P0327, P0328, P0332, P0333 KS .................. 279
Component Description ........................................ 279
On Board Diagnosis Logic ................................... 279
DTC Confirmation Procedure ............................... 279
Wiring Diagram .................................................... 280
Diagnostic Procedure ........................................... 281
Component Inspection ......................................... 283
Removal and Installation ...................................... 283
DTC P0335 CKP SENSOR (POS) .......................... 284
Component Description ........................................ 284
CONSULT-II Reference Value in Data Monitor Mode
. 284
On Board Diagnosis Logic ................................... 284
DTC Confirmation Procedure ............................... 284
Wiring Diagram .................................................... 286
Diagnostic Procedure ........................................... 287
Component Inspection ......................................... 290
Removal and Installation ...................................... 290
DTC P0340 CMP SENSOR (PHASE) ..................... 291
Component Description ........................................ 291
On Board Diagnosis Logic ................................... 291
DTC Confirmation Procedure ............................... 291Wiring Diagram .....................................................293
Diagnostic Procedure ...........................................294
Component Inspection ..........................................297
Removal and Installation ......................................297
DTC P0420, P0430 THREE WAY CATALYST FUNC-
TION ........................................................................298
On Board Diagnosis Logic ....................................298
DTC Confirmation Procedure ...............................298
Overall Function Check ........................................299
Diagnostic Procedure ...........................................300
DTC P0441 EVAP CONTROL SYSTEM .................304
System Description ...............................................304
On Board Diagnosis Logic ....................................304
DTC Confirmation Procedure ...............................304
Overall Function Check ........................................305
Diagnostic Procedure ...........................................306
DTC P0442 EVAP CONTROL SYSTEM .................309
On Board Diagnosis Logic ....................................309
DTC Confirmation Procedure ...............................310
Diagnostic Procedure ...........................................311
DTC P0444, P0445 EVAP CANISTER PURGE VOL-
UME CONTROL SOLENOID VALVE ......................318
Description ............................................................318
CONSULT-II Reference Value in Data Monitor Mode
.318
On Board Diagnosis Logic ....................................319
DTC Confirmation Procedure ...............................319
Wiring Diagram .....................................................320
Diagnostic Procedure ...........................................322
Component Inspection ..........................................323
Removal and Installation ......................................324
DTC P0447 EVAP CANISTER VENT CONTROL
VALVE .....................................................................325
Component Description ........................................325
CONSULT-II Reference Value in Data Monitor Mode
.325
On Board Diagnosis Logic ....................................325
DTC Confirmation Procedure ...............................326
Wiring Diagram .....................................................327
Diagnostic Procedure ...........................................328
Component Inspection ..........................................330
DTC P0451 EVAP CONTROL SYSTEM PRESSURE
SENSOR .................................................................332
Component Description ........................................332
CONSULT-II Reference Value in Data Monitor Mode
.332
On Board Diagnosis Logic ....................................332
DTC Confirmation Procedure ...............................333
Diagnostic Procedure ...........................................333
Component Inspection ..........................................334
DTC P0452 EVAP CONTROL SYSTEM PRESSURE
SENSOR .................................................................335
Component Description ........................................335
CONSULT-II Reference Value in Data Monitor Mode
.335
On Board Diagnosis Logic ....................................335
DTC Confirmation Procedure ...............................336
Wiring Diagram .....................................................337