fuel pressure INFINITI QX56 2011 Factory Service Manual
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![INFINITI QX56 2011 Factory Service Manual
CCS-72
< BASIC INSPECTION >[ICC]
LASER BEAM AIMING ADJUSTMENT
LASER BEAM AIMING ADJUSTMENT
DescriptionINFOID:0000000006224293
OUTLINE OF LASER BEAM AIMING ADJUSTMENT
Always adjust the laser beam aimi](/img/42/57033/w960_57033-806.png "INFINITI QX56 2011 Factory Service Manual
CCS-72
< BASIC INSPECTION >[ICC]
LASER BEAM AIMING ADJUSTMENT
LASER BEAM AIMING ADJUSTMENT
DescriptionINFOID:0000000006224293
OUTLINE OF LASER BEAM AIMING ADJUSTMENT
Always adjust the laser beam aimi")
CCS-72
< BASIC INSPECTION >[ICC]
LASER BEAM AIMING ADJUSTMENT
LASER BEAM AIMING ADJUSTMENT
DescriptionINFOID:0000000006224293
OUTLINE OF LASER BEAM AIMING ADJUSTMENT
Always adjust the laser beam aiming after removing and installing or replacing the ICC sensor.
CAUTION:
The system does not operate normally
unless the laser beam aiming adjustment is performed. Always
perform it.
1. Set the ICC target board [SST: KV99110100 (J-45718)] to the correct position in front of the vehicle.
2. Set the laser beam aiming mode (“LASER BEAM AD JUST” on “Work support”) with CONSULT-III, and
then perform the adjustment according to the displa y. (Manually turn the up-down direction adjusting
screw for vertical adjustment. ICC sensor adjusts the automatic aiming for the horizontal direction.)
CAUTIONARY POINT FOR LASER BEAM AIMING ADJUSTMENT
CAUTION:
For laser beam aiming adjustment, choose a level location where a view can be obtained without any
obstruction as far as 12 m (39 ft) or more in the forward direction.
Adjust laser beam aiming for 5 second s or more after starting engine.
Adjust the laser beam aiming with CONSULT-III. (The laser beam aiming cannot be adjusted without
CONSULT-III.)
Never enter the vehicle during laser beam aiming adjustment.
Never look directly into the laser beam sour ce (ICC sensor body window) during laser beam aiming
adjustment.
Laser beam aiming adjustment is performed at idle. At this time, turn the headlamps OFF.
Work Procedure (Preparation)INFOID:0000000006224294
1.ADVANCE PREPARATION FOR LASER BEAM AIMING ADJUSTMENT
1. Adjust all tire pressure to the specified value.
2. Empty the vehicle. (Remove any luggage from the passenger compartment, luggage room, etc.)
3. Shift the selector lever to “P” pos ition, and release the parking brake.
4. Fully fill the fuel tank, and then check that t he coolant and oils are filled up to correct level.
5. Clean off the ICC sensor body window with a soft cloth.
>> Go to CCS-72, "
Work Procedure (Setting The ICC Tar-
get Board)".
Work Procedure (Setting The ICC Target Board)INFOID:0000000006224295
DESCRIPTION
Accurate adjustment of the laser beam requires t hat the ICC target board be accurately positioned.
CAUTION:
If the laser beam is adjusted with the ICC target board in the incorrect position, the ICC system does
not function normally.
1.ICC TARGET BOARD HEIGHT ADJUSTMENT
1 : ICC sensor
JSOIA0372ZZ
Revision: 2010 May2011 QX56
Page 1305 of 5598
![INFINITI QX56 2011 Factory Service Manual
DAS-340
< BASIC INSPECTION >[LDW & LDP]
CAMERA AIMING ADJUSTMENT
CAMERA AIMING ADJUSTMENT
DescriptionINFOID:0000000006223734
Always adjust the camera aiming after removing
and installing or replacin](/img/42/57033/w960_57033-1304.png "INFINITI QX56 2011 Factory Service Manual
DAS-340
< BASIC INSPECTION >[LDW & LDP]
CAMERA AIMING ADJUSTMENT
CAMERA AIMING ADJUSTMENT
DescriptionINFOID:0000000006223734
Always adjust the camera aiming after removing
and installing or replacin")
DAS-340
< BASIC INSPECTION >[LDW & LDP]
CAMERA AIMING ADJUSTMENT
CAMERA AIMING ADJUSTMENT
DescriptionINFOID:0000000006223734
Always adjust the camera aiming after removing
and installing or replacing the lane camera unit.
CAUTION:
Place the vehicle on level ground when th e camera aiming adjustment is operated.
Follow the CONSULT-III when performing the came ra aiming. (Camera aiming adjustment cannot be
operated without CONSULT-III.)
Work Procedure (Preparation)INFOID:0000000006223735
1.PERFORM SELF-DIAGNOSIS
Perform self-diagnosis of ADAS control unit and lane camera unit.
Is any DTC detected?
Except “C1B01”>>Perform diagnosis on the detected DTC and repair or replace the applicable item. Refer to
DAS-310, "
DTC Index" (ICC/ADAS) or DAS-316, "DTC Index" (LANE CAMERA).
“C1B01” or no DTC>>GO TO 2.
2.PREPARATION BEFORE CAMERA AIMING ADJUSTMENT
1. Perform pre-inspection for diagnosis. Refer to DAS-335, "
Inspection Procedure".
2. Adjust the tire pressure to the specified pressure value.
3. Maintain no-load in vehicle.
4. Check if coolant and engine oil are filled up to correct level and fuel tank is full.
5. Shift the selector lever to “P” position and release the parking brake.
6. Clean the windshield.
7. Completely clear off the instrument panel.
>> GO TO 3.
3. PREPARATION OF AIMING ADJUSTMENT JIG
Prepare the aiming adjustment jig according to the following procedure and the figure.
1. Print out the target mark attached in this service manual. Refer to DAS-343, "
Work Procedure (Target
Mark Sample)".
2. Stick a printed target mark on the board with a scotch tape or a piece of double-sided tape.
NOTE:
Use the board that peripheral area of the ta rget is monochrome such as a white-board.
Notice that the cross of the target is horizontal and vertical.
JPOIA0011ZZ
Revision: 2010 May2011 QX56
Page 1788 of 5598
DLK-252
< REMOVAL AND INSTALLATION >
CAB MOUNTING INSULATOR
Drain brake fluid from brake line. Refer to BR-10, "Draining".
Release fuel pressure. Refer to EC-153, "
Work Procedure".
Disconnect both battery cables. Refer to PG-164, "
Removal and Installation".
Drain engine coolant from radiator. Refer to CO-8, "
Draining".
Discharge refrigerant from A/C circuit. Refer to HA-20, "
Recycle Refrigerant".
Drain power steering fluid from reservoir tank.
4. Remove parts relating to connection of body assembly and frame assembly. Tire and wheel: Refer to WT-64, "
Removal and Installation" (with TPMS).
Front fender protector (LH and RH): Refer to EXT-23, "
FENDER PROTECTOR : Removal and Installa-
tion".
Front bumper: Refer to EXT-13, "
Removal and Installation".
Radiator core support upper: Refer to DLK-220, "
Removal and Installation".
Fan shroud: Refer to CO-16, "
Removal and Installation".
Battery and battery case: Refer to PG-164, "
Removal and Installation".
Air cleaner case (upper and lower): Refer to EM-27, "
Removal and Installation".
Engine cover: Refer to EM-25, "
Removal and Installation".
Rear wheel house protector (LH and RH): EXT-24, "
REAR WHEEL HOUSE PROTECTOR : Removal
and Installation".
Rear bumper: Refer to EXT-17, "
Removal and Installation".
Fuel filler tube: Remove to FL-8, "
Exploded View".
Spare tire
Towing hook bracket.
5. Separate parts relating to connection of body assembly and frame assembly. Vehicle front
Disconnect ICC sensor connector. (models with ICC) Refer to CCS-176, "
Removal and Installation".
Remove radiator upper hose and radiator lower hose from radiator assembly. Refer to CO-13,
"Exploded View".
Remove A/T fluid cooler hose B and A/T fluid cooler hose E from A/T fluid cooler tubes. Refer to TM-
202, "Exploded View".
Remove power steering return hose from oil cooler, and then power steering return hose clamp bolt from frame assembly. Refer to ST-54, "
Exploded View".
Remove power steering suction hose from reservoir tank. Refer to ST-54, "
Exploded View".
CAUTION:
Never spill power steering fluid in engine room.
Remove A/C low-presser flexible hose from A/C low-presser pipe. Refer to HA-35, "
LOW-PRESSURE
FLEXIBLE HOSE : Removal and Installation".
Remove A/C hi-presser flexible hose from condenser. Refer to HA-34, "
HIGH-PRESSURE FLEXIBLE
HOSE : Removal and Installation".
Remove all engine Control Harness connectors, har ness clips and others that are connected to the
body assembly side of the engine room. (engine room LH and RH side). Refer to PG-148, "
Engine Con-
trol Harness".
NOTE:
Separate harness connectors from ECM (engine control module). Refer to EC-10, "
General Precau-
tions".
CAUTION:
When pulling out harnesses, never damage harnesses or connectors.
After temporarily securing connectors, cover th em with vinyl or similar material to protect
against adhesion of foreign materials.
Disconnect engine room harness connectors and remo ve harness clips from engine assembly (engine
RH side). Refer to PG-146, "
Engine Room Harness".
Remove heater hoses from front water outlet tube (engine room RH side). Refer to HA-33, "
Exploded
View".
Disconnect front wheel sensor connectors (LH and RH). Refer to BRC-134, "
FRONT WHEEL SENSOR
: Exploded View".
Disconnect fuel feed tube and EVAP hos e (front wheel well LH side).
Remove steering lower shaft from steering gear side assembly. Refer to ST-37, "
Removal and Installa-
tion"
CAUTION:
Spiral cable may be cut if steering wheel turns while separating steering column assembly and
steering gear assembly.
Revision: 2010 May2011 QX56
Page 1816 of 5598
![INFINITI QX56 2011 Factory Service Manual
DLN-14
< SYSTEM DESCRIPTION >[TRANSFER: ATX90A]
STRUCTURE AND OPERATION
DESCRIPTION
Ball ramp lever operates in the direction of main shaft axis according to rotation of actuator shaft and
presses](/img/42/57033/w960_57033-1815.png "INFINITI QX56 2011 Factory Service Manual
DLN-14
< SYSTEM DESCRIPTION >[TRANSFER: ATX90A]
STRUCTURE AND OPERATION
DESCRIPTION
Ball ramp lever operates in the direction of main shaft axis according to rotation of actuator shaft and
presses")
DLN-14
< SYSTEM DESCRIPTION >[TRANSFER: ATX90A]
STRUCTURE AND OPERATION
DESCRIPTION
Ball ramp lever operates in the direction of main shaft axis according to rotation of actuator shaft and
presses piston. Pressure is applied to each clutch and torque is transmitted.
Shift fork operates in the direction of main shaft axis according to rotation of actuator shaft and performs
engagement and disengagement to Hi-Lo sleeve and lock sleev e of main shaft. Mode is switched between
4H ⇔4L.
AUTO MODE
The optimum torque distribution is electronically performed for front and rear wheels according to road con-
ditions.
Stable start without wheel spin is possible on slippery road conditions, such as on a snowy road.
When road condition does not require 4WD driving, the st atus becomes close to rear wheel drive, which
results in better fuel efficiency and prov ides FR-like steering characteristics.
The vehicle cornering status is judged according to information from each sensor, and the optimum torque is
distributed to front wheels for prev enting tight-corner braking symptom.
NOTE:
When there is a difference of revolution speed between the front and rear wheel the shift occasionally changes
to direct 4-wheel driving conditions aut omatically. This is not a malfunction.
4H MODE
Torque distribution for front and rear wheels is fixed and stable start is achieved while driving on an rough,
sandy or snowy road.
4L MODE
Large traction force is obtained due to low gear. High running ability and escaping ability are achieved.
Switching from 4H mode to 4L mode is not possible w hen the vehicle is not stopped and A/T shift selector is
not in the neutral position.
TORQUE DISTRIBUTION DIAGRAM
JPDIE0256GB
Revision: 2010 May2011 QX56
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EC-1
ENGINE
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SECTION EC
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CONTENTS
ENGINE CONTROL SYSTEM
VK56VD
PRECAUTION ................ ...............................
9
PRECAUTIONS .............................................. .....9
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
9
Precaution for Procedure without Cowl Top Cover ......9
Precautions For Xenon Headlamp Service ...............9
On Board Diagnostic (OBD) System of Engine
and A/T ....................................................................
10
General Precautions ...............................................10
PREPARATION ...........................................14
PREPARATION .............................................. ....14
Special Service Tools .......................................... ....14
Commercial Service Tools ......................................14
SYSTEM DESCRIPTION .............................16
COMPONENT PARTS ................................... ....16
Component Parts Location .................................. ....16
Component Description ...........................................19
Accelerator Pedal Position Sensor ..........................21
Air Fuel Ratio (A/F) Sensor 1 ..................................21
ASCD Brake Switch & Stop Lamp Switch ...............21
ASCD Steering Switch ............................................21
ASCD Indicators ......................................................21
Battery Current Sensor (With Battery Tempera-
ture Sensor) ............................................................
22
Camshaft Position Sensor .......................................22
Crankshaft Position Sensor .....................................23
ECM ........................................................................23
Electric Throttle Control Actuator ............................23
Electrically-controlled cooling fan coupling .............24
Engine Coolant Temperature Sensor ......................25
Engine Oil Temperature Sensor ..............................25
EVAP Control System Pressure Sensor .................26
EVAP Canister Vent Control Valve .........................26
EVAP Canister Purge Volume Control Solenoid
Valve .................................................................... ....
26
Fuel Injector .............................................................26
Fuel Level Sensor ....................................................26
Fuel Pump Control Module ......................................27
Fuel Rail Pressure Sensor .......................................27
Fuel Tank Temperature Sensor ...............................27
Heated Oxygen Sensor 2 ........................................27
High Pressure Fuel Pump .......................................28
ICC Brake Switch & Stop Lamp Switch ...................29
ICC Steering Switch ................................................29
Ignition Coil With Power Transistor .........................29
Intake Valve Timing Control Solenoid Valve ...........29
Knock Sensor ...................................................... ....30
Low Fuel Pressure Sensor ......................................30
Low Pressure Fuel Pump ........................................30
Malfunction Indicator Lamp (MIL) ............................30
Manifold Absolute Pressure Sensor ........................31
Mass Air Flow Sensor (With Intake Air Tempera-
ture Sensor) .............................................................
31
Power Steering Pressure (PSP) Sensor ..................31
Refrigerant Pressure Sensor ............................... ....32
VVEL Actuator Motor ...............................................32
VVEL Actuator Motor Relay .....................................32
VVEL Control Module ..............................................32
VVEL Control Shaft Position Sensor .......................32
STRUCTURE AND OPERATION .....................33
Positive Crankcase Ventilation ................................33
On Board Refueling Vapor Recovery (ORVR) ........34
SYSTEM ............................................................35
ENGINE CONTROL SYSTEM ........................ ...........35
ENGINE CONTROL SYSTEM : System Diagram ....35
ENGINE CONTROL SYSTEM : System Descrip-
tion ...........................................................................
35
DIRECT INJECTION GASOLINE SYSTEM .......... ....36
DIRECT INJECTION GASOLINE SYSTEM :
System Diagram .....................................................
36
Revision: 2010 May2011 QX56
Page 2026 of 5598
EC-2
DIRECT INJECTION GASOLINE SYSTEM : Sys-
tem Description .......................................................
36
FUEL PRESSURE CONTROL ..................................39
FUEL PRESSURE CONTROL : System Diagram
...
39
FUEL PRESSURE CONTROL : System Descrip-
tion ..........................................................................
39
COOLING FAN CONTROL .................................... ...40
COOLING FAN CONTROL : System Diagram .......41
COOLING FAN CONTROL : System Description ...41
ELECTRIC IGNITION SYST EM ................................41
ELECTRIC IGNITION SYSTEM :
System Diagram ................................................. ...
42
ELECTRIC IGNITION SYSTEM : System De-
scription ..................................................................
42
INTAKE VALVE TIMING CONTROL ..................... ...43
INTAKE VALVE TIMING CONTROL : System Di-
agram .....................................................................
43
INTAKE VALVE TIMING CONTROL : System De-
scription ..................................................................
43
VVEL SYSTEM ....................................... ...................43
VVEL SYSTEM : System Dia gram ........................44
VVEL SYSTEM : System De scription .....................44
EVAPORATIVE EMISSION SYSTEM .................... ...45
EVAPORATIVE EMISSION SYSTEM : System
Diagram ..................................................................
45
EVAPORATIVE EMISSION SYSTEM : System
Description ..............................................................
45
AIR CONDITIONING CUT CONTROL ................... ...46
AIR CONDITIONING CUT CONTROL : System
Diagram ..................................................................
47
AIR CONDITIONING CUT CONTROL : System
Description ..............................................................
47
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ...47
AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : System Diagram ............................................
48
AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : System Description .......................................
48
CAN COMMUNICATION ........................................ ...48
CAN COMMUNICATION : System Description ......48
OPERATION ................................................... ...49
AUTMATIC SPEED CONTROL DEVICE (ASCD) . ...49
AUTMATIC SPEED CONTROL DEVICE (ASCD)
: Switch Name and Function ...................................
49
ON BOARD DIAGNOSTIC (OBD) SYSTEM .....51
Diagnosis Description .......................................... ...51
GST (Generic Scan Tool) .......................................51
DIAGNOSIS SYSTEM (ECM) ............................52
DIAGNOSIS DESCRIPTION .................................. ...52
DIAGNOSIS DESCRIPTION : 1st Trip Detection
Logic and Two Trip Detection Logic ........................
52
DIAGNOSIS DESCRIPTION : DTC and Freeze
Frame Data .............................................................
52
DIAGNOSIS DESCRIPTION : Counter System ......53
DIAGNOSIS DESCRIPTION : Driving Pattern ........58
DIAGNOSIS DESCRIPTION : System Readiness
Test (SRT) Code .................................................. ...
58
DIAGNOSIS DESCRIPTION : Malfunction Indica-
tor Lamp (MIL) ..................................................... ...
60
On Board Diagnosis Function .................................60
CONSULT-III Function ............................................63
ECU DIAGNOSIS INFORMATION .............72
ECM ................................................................ ...72
Reference Value .................................................. ...72
Fail-safe ..................................................................93
DTC Inspection Priority Chart .................................96
DTC Index ...............................................................98
Test Value and Test Limit ..................................104
VVEL CONTROL MODULE .............................110
Reference Value .................................................. .110
WIRING DIAGRAM ...................................114
ENGINE CONTROL SYSTEM ........................ ..114
Wiring Diagram .................................................... .114
BASIC INSPECTION .................................135
DIAGNOSIS AND REPAIR WORKFLOW ...... ..135
Work Flow ............................................................ .135
Diagnostic Work Sheet .........................................138
BASIC INSPECTION ...................................... ..139
Work Procedure ................................................... .139
ADDITIONAL SERVICE WHEN REPLACING
ECM ..................................................................
143
Description ........................................................... .143
Work Procedure ....................................................143
ADDITIONAL SERVICE WHEN REPLACING
VVEL CONTROL MODULE .............................
144
Description ........................................................... .144
Work Procedure ....................................................144
VIN REGISTRATION ........................................145
Description ........................................................... .145
Work Procedure ....................................................145
ACCELERATOR PEDAL RELEASED POSI-
TION LEARNING ............................................ ..
146
Description ........................................................... .146
Work Procedure ....................................................146
THROTTLE VALVE CLOSED POSITION
LEARNING .......................................................
147
Description ........................................................... .147
Revision: 2010 May2011 QX56
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EC-3
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EC A
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Work Procedure ..................................................
..
147
IDLE AIR VOLUME LEARNING ......................148
Description .......................................................... ..148
Work Procedure ....................................................148
VVEL CONTROL SHAFT POSITION SEN-
SOR ADJUSTMENT .........................................
150
Description .......................................................... ..150
Work Procedure ....................................................150
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR ..............................................................
152
Description .......................................................... ..152
Work Procedure ....................................................152
FUEL PRESSURE .......................................... ..153
Work Procedure .................................................. ..153
HOW TO SET SRT CODE ................................156
Description .......................................................... ..156
SRT Set Driving Pattern ........................................157
Work Procedure ....................................................159
DTC/CIRCUIT DIAGNOSIS .......................161
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE ............................................................ ..
161
Description .......................................................... ..161
Component Function Check ..................................161
Diagnosis Procedure .............................................162
POWER SUPPLY AND GROUND CIRCUIT ....168
Diagnosis Procedure ........................................... ..168
U0101 CAN COMM CIRCUIT ...........................171
DTC Logic ........................................................... ..171
Diagnosis Procedure .............................................171
U1001 CAN COMM CIRCUIT ...........................172
DTC Logic ........................................................... ..172
Diagnosis Procedure .............................................172
U0113, U1003 CAN COMM CIRCUIT ..............173
DTC Logic ........................................................... ..173
Diagnosis Procedure .............................................173
U1024 CAN COMM CIRCUIT ...........................175
DTC Logic ........................................................... ..175
Diagnosis Procedure .............................................175
P0011, P0021 IVT CONTROL ..........................177
DTC Logic ........................................................... ..177
Diagnosis Procedure .............................................178
Component Inspection (Intake Valve Timing Con-
trol Solenoid Valve) ...............................................
179
P0031, P0032, P0051, P0052 A/F SENSOR 1
HEATER ...........................................................
181
DTC Logic ........................................................... ..181
Diagnosis Procedure .............................................181
Component Inspection (A/F Sensor 1 Heater) ......182
P0037, P0038, P0057, P0058 HO2S2 HEAT-
ER ....................................................................
184
DTC Logic ............................................................ ..184
Diagnosis Procedure .............................................184
Component Inspection (HO2 Sensor 2 Heater) .....186
P006A, P0101 MAF SENSOR ........................187
DTC Logic ..............................................................187
Diagnosis Procedure .............................................188
Component Inspection (MAF Sensor) ...................190
P0075, P0081 IVT CONTROL SOLENOID
VALVE .............................................................
193
DTC Logic ..............................................................193
Diagnosis Procedure .............................................193
Component Inspection (Intake Valve Timing Con-
trol Solenoid Valve) ...............................................
194
P0087, P0088, P0090 FRP CONTROL SYS-
TEM .................................................................
195
DTC Logic ..............................................................195
Diagnosis Procedure .............................................196
Component Inspection ...........................................196
P008A LOW FUEL PRESSURE CONTROL
SYSTEM ..........................................................
198
DTC Logic ............................................................ ..198
Diagnosis Procedure .............................................198
P008B LOW FUEL PRESSURE CONTROL
SYSTEM ..........................................................
200
DTC Logic ............................................................ ..200
Diagnosis Procedure .............................................200
P0102, P0103 MAF SENSOR .........................201
DTC Logic ..............................................................201
Diagnosis Procedure .............................................201
Component Inspection (MAF Sensor) ...................203
P0106 MANIFOLD ABSOLUTE PRESSURE
SENSOR ..........................................................
206
DTC Logic ..............................................................206
Diagnosis Procedure .............................................207
Component Inspection (MAP Sensor) ...................208
P010A MANIFOLD ABSOLUTE PRESSURE
SENSOR ..........................................................
210
DTC Logic ..............................................................210
Diagnosis Procedure .............................................210
Component Inspection (MAP Sensor) ...................211
P0112, P0113 IAT SENSOR ...........................213
DTC Logic ..............................................................213
Diagnosis Procedure .............................................213
Component Inspection (Intake Air Temperature
Sensor) ..................................................................
214
P0116 ECT SENSOR ......................................215
DTC Logic ..............................................................215
Diagnosis Procedure .............................................215
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EC-4
Component Inspection (Engine Coolant Tempera-
ture Sensor) ...........................................................
216
P0117, P0118 ECT SENSOR ..........................217
DTC Logic ............................................................ ..217
Diagnosis Procedure .............................................217
Component Inspection (Engine Coolant Tempera-
ture Sensor) ...........................................................
218
P0122, P0123 TP SENSOR .............................219
DTC Logic ............................................................ ..219
Diagnosis Procedure .............................................219
Component Inspection (Throttle Position Sensor) ..220
P0125 ECT SENSOR .......................................222
DTC Logic ............................................................ ..222
Diagnosis Procedure .............................................222
Component Inspection (Engine Coolant Tempera-
ture Sensor) ...........................................................
223
P0127 IAT SENSOR ........................................224
DTC Logic ............................................................ ..224
Diagnosis Procedure .............................................224
Component Inspection (Intake Air Temperature
Sensor) ..................................................................
225
P0128 THERMOSTAT FUNCTION .................226
DTC Logic ............................................................ ..226
Diagnosis Procedure .............................................227
Component Inspection (Engine Coolant Tempera-
ture Sensor) ...........................................................
227
P0130, P0150 A/F SENSOR 1 .........................228
DTC Logic ............................................................ ..228
Component Function Check ..................................229
Diagnosis Procedure .............................................230
P0131, P0151 A/F SENSOR 1 .........................232
DTC Logic ............................................................ ..232
Diagnosis Procedure .............................................233
P0132, P0152 A/F SENSOR 1 .........................235
DTC Logic ............................................................ ..235
Diagnosis Procedure .............................................236
P0133, P0153 A/F SENSOR 1 .........................238
DTC Logic ............................................................ ..238
Diagnosis Procedure .............................................239
P0137, P0157 HO2S2 ......................................243
DTC Logic ............................................................ ..243
Component Function Check ..................................244
Diagnosis Procedure .............................................245
Component Inspection (HO2 sensor 2) .................246
P0138, P0158 HO2S2 ......................................249
DTC Logic ............................................................ ..249
Component Function Check ..................................251
Diagnosis Procedure .............................................251
Component Inspection (HO2 sensor 2) .................254
P0139, P0159 HO2S2 .......................................257
DTC Logic ............................................................ .257
Component Function Check .................................258
Diagnosis Procedure .............................................259
Component Inspection (HO2 sensor 2) ................260
P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION ........................................................
263
DTC Logic ............................................................ .263
Diagnosis Procedure .............................................264
P0172, P0175 FUEL INJECTION SYSTEM
FUNCTION ........................................................
267
DTC Logic ............................................................ .267
Diagnosis Procedure .............................................268
P0181 FTT SENSOR ........................................271
DTC Logic ............................................................ .271
Diagnosis Procedure .............................................271
Component Inspection (Fuel Tank Temperature
Sensor) .................................................................
273
P0182, P0183 FTT SENSOR ............................274
DTC Logic ............................................................ .274
Diagnosis Procedure .............................................274
Component Inspection (Fuel Tank Temperature
Sensor) .................................................................
275
P0190, P0192, P0193 FRP SENSOR ...............276
DTC Logic ............................................................ .276
Diagnosis Procedure .............................................276
Component Inspection (Fuel Rail Pressure Sen-
sor) ........................................................................
278
P0191 FRP SENSOR .......................................279
DTC Logic ............................................................ .279
Diagnosis Procedure .............................................279
Component Inspection (Fuel Rail Pressure Sen-
sor) ........................................................................
281
P0196 EOT SENSOR .......................................283
DTC Logic ............................................................ .283
Diagnosis Procedure .............................................284
Component Inspection (Engine Oil Temperature
Sensor) .................................................................
284
P0197, P0198 EOT SENSOR ...........................285
DTC Logic ............................................................ .285
Diagnosis Procedure .............................................285
Component Inspection (Engine Oil Temperature
Sensor) .................................................................
286
P0201, P0202, P0203, P0204, P0205, P0206,
P0207, P0208 INJECTOR ................................
287
DTC Logic ............................................................ .287
Diagnosis Procedure .............................................287
P0222, P0223 TP SENSOR ..............................288
DTC Logic ............................................................ .288
Diagnosis Procedure .............................................288
Component Inspection (Throttle Position Sensor) .289
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P0300, P0301, P0302, P0303, P0304, P0305,
P0306, P0307, P0308 MISFIRE ..................... ..
291
DTC Logic ........................................................... ..291
Diagnosis Procedure .............................................292
P0327, P0328, P0332, P0333 KS ....................297
DTC Logic ........................................................... ..297
Diagnosis Procedure .............................................297
Component Inspection (Knock Sensor) ................298
P0335 CKP SENSOR .......................................299
DTC Logic ........................................................... ..299
Diagnosis Procedure .............................................299
Component Inspection (Crankshaft Position Sen-
sor) ........................................................................
301
P0340, P0345 CMP SENSOR ..........................303
DTC Logic ........................................................... ..303
Diagnosis Procedure .............................................304
Component Inspection (Camshaft Position Sen-
sor) ........................................................................
306
P0420, P0430 THREE WAY CATALYST
FUNCTION .......................................................
307
DTC Logic ........................................................... ..307
Component Function Check ..................................308
Diagnosis Procedure .............................................309
P0441 EVAP CONTROL SYSTEM ..................312
DTC Logic ........................................................... ..312
Component Function Check ..................................313
Diagnosis Procedure .............................................314
P0443 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE .......................
317
DTC Logic ........................................................... ..317
Diagnosis Procedure .............................................318
Component Inspection (EVAP Canister Purge
Volume Control Solenoid Valve) ...........................
320
P0444, P0445 EVAP CANISTER PURGE
VOLUME CONTROL SOLENOID VALVE .......
322
DTC Logic ........................................................... ..322
Diagnosis Procedure .............................................322
Component Inspection (EVAP Canister Purge
Volume Control Solenoid Valve) ...........................
323
P0447 EVAP CANISTER VENT CONTROL
VALVE ..............................................................
325
DTC Logic ........................................................... ..325
Diagnosis Procedure .............................................325
Component Inspection (EVAP Canister Vent Con-
trol Valve) ............................................................ ..
327
P0448 EVAP CANISTER VENT CONTROL
VALVE ..............................................................
329
DTC Logic ........................................................... ..329
Diagnosis Procedure .............................................329
Component Inspection (EVAP Canister Vent Con-
trol Valve) ............................................................ ..
331
P0451 EVAP CONTROL SYSTEM PRES-
SURE SENSOR ...............................................
333
DTC Logic ............................................................ ..333
Diagnosis Procedure .............................................333
Component Inspection (EVAP Control System
Pressure Sensor) ................................................. ..
335
P0452 EVAP CONTROL SYSTEM PRES-
SURE SENSOR ...............................................
336
DTC Logic ..............................................................336
Diagnosis Procedure .............................................337
Component Inspection (EVAP Control System
Pressure Sensor) ................................................. ..
339
P0453 EVAP CONTROL SYSTEM PRES-
SURE SENSOR ...............................................
341
DTC Logic ..............................................................341
Diagnosis Procedure .............................................342
Component Inspection (EVAP Control System
Pressure Sensor) ................................................. ..
345
P0456 EVAP CONTROL SYSTEM .................346
DTC Logic ..............................................................346
Diagnosis Procedure .............................................347
Component Inspection (Fuel Filler Cap) ................350
P0460 FUEL LEVEL SENSOR .......................352
DTC Logic ............................................................ ..352
Diagnosis Procedure .............................................352
P0461 FUEL LEVEL SENSOR .......................353
DTC Logic ..............................................................353
Component Function Check ..................................353
Diagnosis Procedure .............................................354
P0462, P0463 FUEL LEVEL SENSOR ...........355
DTC Logic ..............................................................355
Diagnosis Procedure .............................................355
P0500 VSS ......................................................356
Description ........................................................... ..356
DTC Logic ..............................................................356
Component Function Check ..................................357
Diagnosis Procedure .............................................357
P0506 ISC SYSTEM ........................................358
Description .............................................................358
DTC Logic ..............................................................358
Diagnosis Procedure .............................................358
P0507 ISC SYSTEM ........................................360
Description .............................................................360
DTC Logic ..............................................................360
Diagnosis Procedure .............................................360
P050E COLD START CONTROL ...................362
Description .............................................................362
DTC Logic ..............................................................362
Diagnosis Procedure .............................................362
P0524 ENGINE OIL PRESSURE ....................364
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EC-6
DTC Logic ..............................................................364
Diagnosis Procedure .............................................365
P0527 COOLING FAN SPEED SENSOR .......367
DTC Logic ............................................................ ..367
Diagnosis Procedure .............................................367
Component Inspection (Cooling Fan Speed Sen-
sor) ........................................................................
369
P0550 PSP SENSOR .......................................371
DTC Logic ............................................................ ..371
Diagnosis Procedure .............................................371
Component Inspection (Power Steering Pressure
Sensor) ..................................................................
373
P0603 ECM POWER SUPPLY ........................374
DTC Logic ............................................................ ..374
Diagnosis Procedure .............................................374
P0605 ECM ......................................................376
DTC Logic ............................................................ ..376
Diagnosis Procedure .............................................376
P0607 ECM ......................................................378
DTC Logic ............................................................ ..378
Diagnosis Procedure .............................................378
P0611 ECM PROTECTION .............................379
Description ........................................................... ..379
DTC Logic ..............................................................379
Diagnosis Procedure .............................................379
P062B ECM .....................................................380
Description ........................................................... ..380
DTC Logic ..............................................................380
Diagnosis Procedure .............................................380
P0643 SENSOR POWER SUPPLY .................381
DTC Logic ............................................................ ..381
Diagnosis Procedure .............................................381
P0850 PNP SWITCH .......................................383
Description ........................................................... ..383
DTC Logic ..............................................................383
Component Function Check ..................................384
Diagnosis Procedure .............................................384
P1087, P1088 VVEL SYSTEM ........................386
DTC Logic ............................................................ ..386
Diagnosis Procedure .............................................386
P1089, P1092 VVEL CONTROL SHAFT PO-
SITION SENSOR .............................................
387
DTC Logic ............................................................ ..387
Diagnosis Procedure .............................................387
P1090, P1093 VVEL ACTUATOR MOTOR .....390
DTC Logic ............................................................ ..390
Diagnosis Procedure .............................................390
Component Inspection (VVEL ACTUATOR MO-
TOR ASSEMBLY) .................................................
392
Component Inspection (VVEL ACTUATOR
HOUSING ASSEMBLY) ......... ...............................
392
P1091 VVEL ACTUATOR MOTOR RELAY ... ..393
DTC Logic ............................................................ .393
Diagnosis Procedure .............................................393
Component Inspection (VVEL Actuator Motor Re-
lay) ....................................................................... .
395
P1148, P1168 CLOSED LOOP CONTROL .....396
DTC Logic ............................................................ .396
Diagnosis Procedure .............................................396
P1197 OUT OF GAS ........................................397
Description ........................................................... .397
DTC Logic .............................................................397
Diagnosis Procedure .............................................398
P1212 TCS COMMUNICATION LINE ..............399
Description ........................................................... .399
DTC Logic .............................................................399
Diagnosis Procedure .............................................399
P1217 ENGINE OVER TEMPERATURE .........400
DTC Logic ............................................................ .400
Component Function Check .................................400
Diagnosis Procedure .............................................401
P1220 FUEL PUMP CONTROL MODULE
(FPCM) ..............................................................
403
DTC Logic ............................................................ .403
Diagnosis Procedure .............................................403
Component Inspection (FPCM) ............................405
P1225 TP SENSOR ..........................................406
DTC Logic ............................................................ .406
Diagnosis Procedure .............................................406
P1226 TP SENSOR ..........................................407
DTC Logic ............................................................ .407
Diagnosis Procedure .............................................407
P1421 COLD START CONTROL .....................408
Description ........................................................... .408
DTC Logic .............................................................408
Diagnosis Procedure .............................................408
P1423, P1424 COLD START CONTROL ........410
Description ........................................................... .410
DTC Logic .............................................................410
Diagnosis Procedure .............................................410
P1550 BATTERY CURRENT SENSOR ...........412
DTC Logic ............................................................ .412
Diagnosis Procedure .............................................412
Component Inspection (Battery Current Sensor) ..414
P1551, P1552 BATTERY CURRENT SEN-
SOR ..................................................................
416
DTC Logic ............................................................ .416
Diagnosis Procedure .............................................416
Component Inspection (Battery Current Sensor) ..419
Revision: 2010 May2011 QX56