2004 INFINITI QX56 Factory Service Manual

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Page 1097 of 3371

INFINITI QX56 2004 Factory Service Manual CO-14Revision: August 2007
ENGINE COOLING FAN
2004 QX56
Removal and Installation (Motor Driven Type)EBS00I52
REMOVAL
1. Remove front bumper. Refer to EI-13, "FRONT BUMPER" .
2. Disconnect harness con

Page 1098 of 3371

INFINITI QX56 2004 Factory Service Manual WATER PUMP
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Revision: August 20072004 QX56
WATER P UM PPFP:21020
Removal and InstallationEBS00I53
CAUTION:
When removing water pump, be careful not to get engine coola

Page 1099 of 3371

INFINITI QX56 2004 Factory Service Manual CO-16Revision: August 2007
WATER PUMP
2004 QX56
For bleeding the air from the cooling system, refer to MA-13, "REFILLING ENGINE COOLANT" .
INSPECTION AFTER INSTALLATION
Check for leaks of engine co

Page 1100 of 3371

INFINITI QX56 2004 Factory Service Manual THERMOSTAT AND WATER PIPING
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Revision: August 20072004 QX56
THERMOSTAT AND WATER PIPINGPFP:21200
Removal and InstallationEBS00I54
REMOVAL
Removal of Thermostat
1. Drain

Page 1101 of 3371

INFINITI QX56 2004 Factory Service Manual CO-18Revision: August 2007
THERMOSTAT AND WATER PIPING
2004 QX56
CAUTION:
Perform when the engine is cold.
2. Remove air duct and resonator assembly. Refer to EM-14, "
REMOVAL" .
3. Remove engine roo

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INFINITI QX56 2004 Factory Service Manual SERVICE DATA AND SPECIFICATIONS (SDS)
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Revision: August 20072004 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitEBS00I55
ENGINE COOLANT CAPACITY (

Page 1103 of 3371

INFINITI QX56 2004 Factory Service Manual CO-20Revision: August 2007
SERVICE DATA AND SPECIFICATIONS (SDS)
2004 QX56

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INFINITI QX56 2004 Factory Service Manual DI-1
DRIVER INFORMATION SYSTEM
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CONTENTS
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Revision: August 20072004 QX56 PRECAUTION ............................................................ 3
Pre

DI-1
DRIVER INFORMATION SYSTEM
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CONTENTS
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Revision: August 20072004 QX56 PRECAUTION ............................................................ 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Wiring Diagrams and Trouble Diagnosis .................. 3
PREPARATION ........................................................... 4
Commercial Service Tool ......................................... 4
COMBINATION METERS ........................................... 5
System Description .................................................. 5
UNIFIED METER CONTROL UNIT ...................... 5
POWER SUPPLY AND GROUND CIRCUIT ........ 6
WATER TEMPERATURE GAUGE ........................ 6
ENGINE OIL PRESSURE GAUGE ....................... 6
A/T OIL TEMPERATURE GAUGE ........................ 6
VOLTAGE GAUGE ................................................ 6
TACHOMETER ..................................................... 6
FUEL GAUGE ....................................................... 6
SPEEDOMETER ................................................... 6
CAN COMMUNICATION SYSTEM DESCRIP-
TION ...................................................................... 6
Component Parts and Harness Connector Location ..... 7
Combination Meter ................................................... 8
CHECK .................................................................. 8
Circuit Diagram ........................................................ 9
Wiring Diagram — METER — ................................ 10
Terminals and Reference Value for Combination
Meter ...................................................................... 12
Meter/Gauge Operation and Odo/Trip Meter ......... 13
SELF-DIAGNOSIS FUNCTION .......................... 13
HOW TO INITIATE COMBINATION METER
SELF- DIAGNOSIS MODE ................................. 13
COMBINATION METER SELF-DIAGNOSIS
MODE FUNCTIONS ........................................... 13
How to Proceed With Trouble Diagnosis ................ 17
Diagnosis Flow ....................................................... 17
Power Supply and Ground Circuit Inspection ........ 18
Symptom Chart ...................................................... 19
Vehicle Speed Signal Inspection ............................ 19
Engine Oil Pressure Signal Inspection ................... 19
Water Temperature Signal Inspection .................... 21Engine Speed Signal Inspection ............................. 21
Fuel Level Sensor Unit Inspection .......................... 22
FUEL LEVEL SENSOR UNIT ............................. 22
LOW-FUEL WARNING LAMP ............................. 22
Fuel Gauge Fluctuates, Indicates Wrong Value, or
Varies ...................................................................... 24
Fuel Gauge Does Not Move to Full-position ........... 24
Electrical Components Inspection .......................... 25
FUEL LEVEL SENSOR UNIT CHECK ................ 25
Removal and Installation of Combination Meter ..... 25
COMPASS AND THERMOMETER ........................... 26
System Description ................................................. 26
OUTSIDE TEMPERATURE DISPLAY ................. 26
DIRECTION DISPLAY ......................................... 26
Wiring Diagram — COMPAS — ............................. 27
Trouble Diagnoses ................................................. 28
PRELIMINARY CHECK FOR THERMOMETER ... 28
INSPECTION/COMPASS AND THERMOME-
TER ..................................................................... 28
Calibration Procedure for Compass ....................... 29
CORRECTION FUNCTIONS OF COMPASS ...... 29
INITIAL CORRECTION PROCEDURE FOR
COMPASS ........................................................... 30
WARNING LAMPS .................................................... 31
Schematic ............................................................... 31
Wiring Diagram — WARN — .................................. 32
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) ............................................................. 38
Oil Pressure Warning Lamp Does Not Turn Off (Oil
Pressure Is Normal) ................................................ 40
A/T INDICATOR ........................................................ 41
Wiring Diagram — AT/IND — ................................. 41
A/T Indicator Does Not Illuminate ........................... 42
WARNING CHIME ..................................................... 43
Component Parts and Harness Connector Location ... 43
System Description ................................................. 44
FUNCTION .......................................................... 44
IGNITION KEY WARNING CHIME ..................... 44
LIGHT WARNING CHIME ................................... 44
SEAT BELT WARNING CHIME ........................... 44

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