Index Infiniti Infiniti M45 (Y34) - service repair manual 2004 year
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Infiniti M45 (Y34). Manual - part 289
DI-1
DRIVER INFORMATION SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION
DI
A
B
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-SIONER” .................................................................. 4Wiring Diagrams and Trouble Diagnosis .................. 4
PREPARATION ........................................................... 5
Commercial Service Tools ........................................ 5
COMBINATION METERS ........................................... 6
System Description .................................................. 6
UNIFIED CONTROL METER ................................ 6HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METER ........................................................ 6POWER SUPPLY AND GROUND CIRCUIT ........ 6WATER TEMPERATURE GAUGE ........................ 7TACHOMETER ..................................................... 7FUEL GAUGE ....................................................... 7SPEEDOMETER ................................................... 7
CAN Communication System Description ................ 7CAN Communication Unit ........................................ 7Component Parts and Harness Connector Location
..... 7
Combination Meter ................................................... 8
CHECK .................................................................. 8
Schematic ................................................................ 9Wiring Diagram — METER — ................................ 10Terminals and Reference Value for Combination Meter ...................................................................... 12Meter/Gauges Operation, Odo/Trip Meter, A/T Indi-cator and ICC System Display ............................... 12
SELF–DIAGNOSIS FUNCTION .......................... 12HOW TO ALTERNATE DIAGNOSIS MODE ....... 12
How to Proceed with Trouble Diagnosis ................ 13Diagnosis Flow ....................................................... 13Power Supply and Ground Circuit Inspection ........ 14Trouble Diagnosis Chart by Symptom .................... 15
DIAGNOSIS RESULTS ....................................... 15
Engine Speed Signal Inspection ............................ 16Water Temperature Signal Inspection .................... 16Vehicle Speed Signal Inspection ............................ 16Fuel Level Sensor Signal Inspection ...................... 16
FUEL LEVEL SENSOR UNIT ............................. 16
LOW-FUEL WARNING LAMP ............................. 16
Fuel Gauge Pointer Fluctuates·Indicator Wrong Value or Varies ....................................................... 18Fuel Gauge Does Not Move to FULL Position ....... 18Electrical Components Inspection .......................... 19
CHECK FUEL LEVEL SENSOR UNIT ................ 19
Removal and Installation of Combination Meter ..... 19
REMOVAL ........................................................... 19INSTALLATION ................................................... 19
Disassembly and Assembly of Combination Meter ... 20
DISASSEMBLY ................................................... 20ASSEMBLY ......................................................... 20
COMPASS ................................................................. 21
System Description ................................................. 21
DIRECTION DISPLAY ......................................... 21
Wiring Diagram – COMPAS – ................................ 23Removal and Installation of Compass .................... 24
WARNING LAMPS .................................................... 25
System Description ................................................. 25
OUTLINE ............................................................. 25AIR BAG WARNING LAMP ................................. 25DOOR WARNING LAMP ..................................... 25LOW OIL PRESSURE WARNING LAMP ............ 25CHARGE WARNING LAMP ................................ 25LOW WASHER LEVEL WARNING LAMP .......... 25A/T CHECK WARNING LAMP ............................ 26LOW FUEL LEVEL WARNING LAMP ................. 26ABS WARNING LAMP ........................................ 26VDC OFF WARNING LAMP ................................ 26SLIP WARNING LAMP ........................................ 26SEAT BELT WARNING LAMP ............................. 26BRAKE WARNING LAMP ................................... 26MALFUNCTION INDICATOR LAMP ................... 27LOW TIRE PRESSURE WARNING LAMP ......... 27ASCD WARNING LAMP ..................................... 27ICC SYSTEM WARNING LAMP ......................... 27WARNING MESSAGE ON DISPLAY .................. 27
Schematic ............................................................... 28Wiring Diagram — WARN — .................................. 29Terminals and Reference Value for BCM ............... 37