2004 INFINITI QX56 Factory Service Manual

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Page 1185 of 3371

INFINITI QX56 2004 Factory Service Manual DI-82
REAR VIEW MONITOR
Revision: August 20072004 QX56
5. Touch “UP” or “DOWN”, and select the guide line, “PATTERN
NO. 0” or “PATTERN NO. 1”, which is the closest to the cor-
rected l

Page 1186 of 3371

INFINITI QX56 2004 Factory Service Manual REAR VIEW MONITOR
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Revision: August 20072004 QX56
Power Supply and Ground Circuit InspectionEKS007RB
1. CHECK FUSES
Check for blown rear view camera system fuses.
OK or

Page 1187 of 3371

INFINITI QX56 2004 Factory Service Manual DI-84
REAR VIEW MONITOR
Revision: August 20072004 QX56
Rear View Is Not Displayed With The A/T Selector Lever In R PositionEKS007RC
1. BACK-UP LAMP INSPECTION
1. Turn ignition switch ON.
2. Shift A/T

Page 1188 of 3371

INFINITI QX56 2004 Factory Service Manual REAR VIEW MONITOR
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4. CHECK DISPLAY CONTROL UNIT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display control unit connector.
3. Che

Page 1189 of 3371

INFINITI QX56 2004 Factory Service Manual DI-86
REAR VIEW MONITOR
Revision: August 20072004 QX56
7. CHECK REAR VIEW CAMERA SHORT CIRCUIT
1. Check continuity between rear view camera control unit harness
connector B73 terminal 8 (Y) and ground

Page 1190 of 3371

INFINITI QX56 2004 Factory Service Manual REAR VIEW MONITOR
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10. CHECK REAR VIEW CAMERA SIGNAL
1. Connect rear view camera connector.
2. Turn ignition switch ON.
3. Shift A/T selec

Page 1191 of 3371

INFINITI QX56 2004 Factory Service Manual DI-88
REAR VIEW MONITOR
Revision: August 20072004 QX56
13. CHECK REAR VIEW CAMERA CONTROL UNIT COMPOSITE SIGNAL
1. Connect rear view camera control unit connector and display
unit connector.
2. Turn i

Page 1192 of 3371

INFINITI QX56 2004 Factory Service Manual EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION EC
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EC
Revision: August 20072004 QX56 INDEX FOR DTC ........................................................ 8
Alphabetica

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION EC
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EC
Revision: August 20072004 QX56 INDEX FOR DTC ........................................................ 8
Alphabetical Index .................................................... 8
DTC No. 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
Vacuum Hose Drawing ........................................... 24
System Chart ......................................................... 25
Multiport Fuel Injection (MFI) System .................... 26
Electronic Ignition (EI) System ............................... 28
Nissan Torque Demand (NTD) Control System ..... 29
Air Conditioning Cut Control ................................... 30
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................... 30
CAN communication .............................................. 31
BASIC SERVICE PROCEDURE .............................. 32
Idle Speed and Ignition Timing Check .................... 32
Idle Speed/Ignition Timing/Idle Mixture Ratio
Adjustment ............................................................. 33
Accelerator Pedal Released Position Learning ...... 44
Throttle Valve Closed Position Learning ................ 44
Idle Air Volume Learning ........................................ 44
Fuel Pressure Check .............................................. 46
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 49
Introduction ............................................................ 49
Two Trip Detection Logic ........................................ 49
Emission-related Diagnostic Information ................ 50
IVIS (Infiniti Vehicle Immobilizer System — NATS) ... 63
Malfunction Indicator Lamp (MIL) ........................... 63
OBD System Operation Chart ................................ 66TROUBLE DIAGNOSIS ............................................ 71
Trouble Diagnosis Introduction ............................... 71
DTC Inspection Priority Chart ................................. 76
Fail-safe Chart ........................................................ 77
Basic Inspection ..................................................... 79
Symptom Matrix Chart ............................................ 84
Engine Control Component Parts Location ............ 88
Circuit Diagram ....................................................... 94
ECM Harness Connector Terminal Layout ............. 96
ECM Terminals and Reference Value ..................... 96
CONSULT-II Function ...........................................103
Generic Scan Tool (GST) Function .......................116
CONSULT-II Reference Value in Data Monitor .....118
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................121
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .123
Description ............................................................123
Testing Condition ..................................................123
Inspection Procedure ............................................123
Diagnostic Procedure ...........................................124
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .......................................................................127
Description ............................................................127
Diagnostic Procedure ...........................................127
POWER SUPPLY AND GROUND CIRCUIT ...........128
Wiring Diagram .....................................................128
Diagnostic Procedure ...........................................129
Ground Inspection ................................................133
DTC U1000, U1001 CAN COMMUNICATION LINE .135
Description ............................................................135
On Board Diagnosis Logic ....................................135
DTC Confirmation Procedure ...............................135
Wiring Diagram .....................................................136
Diagnostic Procedure ...........................................137
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER .138
Description ............................................................138
CONSULT-II Reference Value in Data Monitor Mode
.138
On Board Diagnosis Logic ....................................138
DTC Confirmation Procedure ...............................139

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