Pressure INFINITI FX35 2006 Service Manual

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DRIVER INFORMATION SYSTEM
K ELECTRICAL
CONTENTS
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Revision: 2006 December 2006 FX35/FX45
DRIVER INFORMATION SYSTEM
PRECAUTION ....................................................... ..... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 4
COMBINATION METERS ...................................... ..... 5
System Description ............................................. ..... 5
UNIFIED METER CONTROL UNIT ................. ..... 5
UNIFIED METER AND A/C AMP. .................... ..... 5
POWER SUPPLY AND GROUND CIRCUIT ... ..... 5
SPEEDOMETER .............................................. ..... 6
TACHOMETER ................................................ ..... 6
WATER TEMPERATURE GAUGE ................... ..... 6
FUEL GAUGE .................................................. ..... 7
ODO/TRIP METER .......................................... ..... 7
COMBINATION METER ILLUMINATION CON-
TROL ................................................................ ..... 8
FAIL-SAFE ....................................................... ..... 8
Component Parts and Harness Connector Location ..... 9
Arrangement of Combination Meter .................... ... 10
Circuit Diagram ................................................... .... 11
Wiring Diagram — METER — ............................. ... 12
Terminals and Reference Value for Combination
Meter ................................................................... ... 14
Terminals and Reference Value for Unified Meter
and A/C Amp. ...................................................... ... 15
Self-Diagnosis Mode of Combination Meter ........ ... 15
SELF-DIAGNOSIS FUNCTION ....................... ... 15
OPERATION PROCEDURE ............................ ... 15
CONSULT-II Function (METER A/C AMP) .......... ... 16
Trouble Diagnosis ............................................... ... 16
HOW TO PERFORM TROUBLE DIAGNOSIS ... 16
PRELIMINARY CHECK ................................... ... 17
Symptom Chart ................................................... ... 17
Power Supply and Ground Circuit Inspection ..... ... 18
Vehicle Speed Signal Inspection ......................... ... 19
Engine Speed Signal Inspection ......................... ... 20
Engine Coolant Temperature Signal Inspection .. ... 21
Fuel Level Sensor Signal Inspection ................... ... 21
Fuel Gauge Pointer Fluctuates, Indicator Wrong
Value or Varies .................................................... ... 23 Fuel Gauge Does Not Move to FULL Position ....
... 23
Odo/Trip Meter and Illumination Control Switch
Inspection ............................................................ ... 24
Electrical Components Inspection ....................... ... 24
ODO/TRIP METER AND ILLUMINATION CON-
TROL SWITCH ................................................. ... 24
FUEL LEVEL SENSOR UNIT .......................... ... 24
Removal and Installation of Combination Meter .. ... 25
Disassembly and Assembly of Combination Meter ... 25
DISASSEMBLY ................................................ ... 26
ASSEMBLY ...................................................... ... 27
Removal and Installation of Odo/Trip Meter and Illu-
mination Control Switch ....................................... ... 27
REMOVAL ........................................................ ... 27
INSTALLATION ................................................ ... 27
UNIFIED METER AND A/C AMP ........................... ... 28
System Description .............................................. ... 28
COMBINATION METER CONTROL FUNCTION ... 28
A/C AUTO AMP. FUNCTION ............................ ... 29
OTHER FUNCTIONS ....................................... ... 29
Schematic ............................................................ ... 30
CONSULT-II Function (METER A/C AMP) .......... ... 31
CONSULT-II BASIC OPERATION .................... ... 31
SELF-DIAG RESULTS ..................................... ... 31
DATA MONITOR .............................................. ... 32
Power Supply and Ground Circuit Inspection ...... ... 33
DTC [U1000] CAN Communication Circuit .......... ... 34
DTC [B2202] Meter Communication Circuit ........ ... 34
DTC [B2205] Vehicle Speed Circuit ..................... ... 37
Removal and Installation of Unified Meter and A/C
Amp. .................................................................... ... 37
REMOVAL ........................................................ ... 37
INSTALLATION ................................................ ... 37
WARNING LAMPS ................................................. ... 38
System Description .............................................. ... 38
OIL PRESSURE WARNING LAMP .................. ... 38
Schematic ............................................................ ... 39
Wiring Diagram — WARN — ............................... ... 40
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) .......................................................... ... 48

DI-2Revision: 2006 December 2006 FX35/FX45 Oil Pressure Warning Lamp Does Not Turn Off (Oil
Pressure Is Normal) ............................................. ... 49
Component Inspection ......................................... ... 51
OIL PRESSURE SWITCH ................................ ... 51
A/T INDICATOR ..................................................... ... 52
System Description .............................................. ... 52
MANUAL MODE ............................................... ... 52
NOT MANUAL MODE ...................................... ... 52
Wiring Diagram — AT/IND — .............................. ... 53
A/T Indicator Is Malfunction ................................. ... 55
WARNING CHIME .................................................. ... 56
System Description .............................................. ... 56
POWER SUPPLY AND CIRCUIT ..................... ... 56
IGNITION KEY WARNING CHIME (WITHOUT
INTELLIGENT KEY) ......................................... ... 57
IGNITION KEY WARNING CHIME (WITH INTEL-
LIGENT KEY) ................................................... ... 57
LIGHT WARNING CHIME ................................ ... 58
SEAT BELT WARNING CHIME ........................ ... 58
Component Parts and Harness Connector Location ... 59
Schematic ............................................................ ... 60
Wiring Diagram — CHIME — .............................. ... 61
Terminals and Reference Value for BCM ............. ... 64
Terminals and Reference Value for Unified Meter
and A/C Amp. ...................................................... ... 68
Terminals and Reference Value for Combination
Meter ................................................................... ... 69
CONSULT-II Function (METER A/C AMP) .......... ... 69
CONSULT-II Function (BCM) ............................... ... 69
DIAGNOSIS ITEMS DESCRIPTION ................ ... 69
CONSULT-II BASIC OPERATION .................... ... 69
DATA MONITOR ............................................... ... 69
ACTIVE TEST .................................................. ... 70
SELF-DIAG RESULTS ..................................... ... 70
Trouble Diagnosis ................................................ ... 70
HOW TO PERFORM TROUBLE DIAGNOSIS . ... 70
PRELIMINARY INSPECTION .......................... ... 71
Symptom Chart .................................................... ... 71
Power Supply and Ground Circuit Inspection ...... ... 71
Combination Meter Buzzer Circuit Inspection ...... ... 72
Front Door Switch (Driver Side) Signal Inspection ... 74
Key Switch Signal Inspection (Without Intelligent
Key) ..................................................................... ... 75
Key Switch and Ignition Knob Switch Signal Inspec-
tion (With Intelligent Key, When Mechanical Key Is
Used) ................................................................... ... 76
Lighting Switch Signal Inspection ........................ ... 77
Seat Belt Buckle Switch (Driver Side) Signal Inspec-
tion ....................................................................... ... 78
Component Inspection ......................................... ... 79
FRONT DOOR SWITCH (DRIVER SIDE) ........ ... 79
KEY SWITCH ................................................... ... 79
KEY SWITCH AND IGNITION KNOB SWITCH ... 79
SEAT BELT BUCKLE SWITCH (DRIVER SIDE) ... 79
LANE DEPARTURE WARNING SYSTEM ............. ... 80
Precautions for Lane Departure Warning (LDW)
system ................................................................. ... 80
System Description .............................................. ... 80 LDW SYSTEM OPERATION ............................
... 80
POWER SUPPLY AND GROUND CIRCUIT .... ... 82
Action Test ........................................................... ... 83
LDW SYSTEM RUNNING TEST ...................... ... 83
Camera Aiming Adjustment ................................. ... 83
OUTLINE .......................................................... ... 83
PREPARATION ................................................. ... 83
TARGET SETTING ........................................... ... 83
VEHICLE HEIGHT CHECK .............................. ... 86
AIMING ADJUSTMENT .................................... ... 86
Component Parts and Harness Connector Location ... 90
Schematic ............................................................ ... 91
Wiring Diagram — LDW — .................................. ... 92
Terminals and Reference Value for LDW Camera
Unit ....................................................................... ... 95
CONSULT-II Function (LDW) ............................... ... 95
DESCRIPTION ................................................. ... 95
CONSULT-II BASIC OPERATION .................... ... 95
WORK SUPPORT ............................................ ... 95
SELF-DIAG RESULTS ...................................... ... 95
DATA MONITOR ............................................... ... 96
ACTIVE TEST ................................................... ... 97
Trouble Diagnosis ................................................ ... 98
HOW TO PERFORM TROUBLE DIAGNOSIS . ... 98
SYMPTOM CHART ........................................... ... 98
Preliminary Inspection .......................................... ... 98
Power Supply and Ground Circuit Inspection ...... ... 99
DTC [C1B00] CAMERA UNIT MALF ................... .100
DTC [C1B01] CAM AIMING INCMP .................... .100
DTC [C1B02] VHCL SPD DATA MALF ................ .100
DTC [C1B03] ABNRML TEMP DETECT ............. .101
DTC [U1000] CAN COMM CIRCUIT ................... .101
DTC [U1010] CONTROL UNIT (CAN) ................. .101
LDW Chime Circuit Inspection ............................. .101
LDW Switch Circuit Inspection ............................. .102
LDW Indicator Lamp Circuit Inspection ................ .105
Turn Signal Input Inspection ................................ .106
Electrical Component Inspection ......................... .106
LDW SWITCH ................................................... .106
Removal and Installation for LDW Camera Unit .. .107
REMOVAL ......................................................... .107
INSTALLATION ................................................. .107
Removal and Installation for LDW Chime ............ .107
REMOVAL ......................................................... .107
INSTALLATION ................................................. .107
Removal and Installation for LDW Switch ............ .107
CAN COMMUNICATION ........................................ .108
System Description .............................................. .108
CAN Communication Unit .................................... .108
COMPASS .............................................................. .109
Precautions for Compass ..................................... .109
System Description .............................................. .109
Troubleshooting ................................................... .110
Zone Variation Setting Procedure ........................ . 111
Calibration Procedure .......................................... . 111
Wiring Diagram — COMPAS — ........................... .112
Removal and Installation of Compass .................. .113
CLOCK ................................................................... .114

DI-8
COMBINATION METERS
Revision: 2006 December 2006 FX35/FX45
COMBINATION METER ILLUMINATION CONTROL
Daytime Mode
When ignition switch is turned ON, combination meter illumination is turned ON by unified meter control unit.
Nighttime Mode

Unified meter control unit is transferred to nighttime mode, with ignition switch turned ON and position
light request signal from BCM with CAN communication.

When nighttime mode, illumination control switch illumination
turns ON by unified meter control unit. Each illumination is con-
trolled by unified meter control unit.

Each illumination can be adjusted to 16 step by illumination con-
trol switch in nighttime mode.
NOTE:
For further details of illumination circuit, refer to LT- 1 8 9 , "
ILLUMINA-
TION" .
FAIL-SAF E
Combination meter performs fail-safe operation when unified meter and A/C amp. communication is malfunc-
tioning.
SKIA4795E
Function Fail-safe operation
Speedometer
Return to zero.
Tachometer
Fuel gauge
Water temperature gauge
Illumination control Combination meter illumination Change to nighttime mode.
Odo/trip meter Integrate in response to 8-pulse input.
A/T position indicator The display turns OFF.
Warning buzzer The warning buzzer turns OFF.
Warning lamp/indicator lamp ABS warning lamp
The lamp turns ON.
VDC OFF indicator
SLIP indicator
Brake warning lamp
Low tire pressure warning lamp
AWD warning lamp
Door warning lamp
The lamp turns OFF.
SET indicator lamp
CRUISE indicator lamp
ICC warning lamp
A/T CHECK warning lamp
Oil pressure warning lamp
Snow mode indicator lamp
Turn signal indicator
Malfunction indicator lamp
High beam indicator
Key warning lamp

DI-28
UNIFIED METER AND A/C AMP
Revision: 2006 December 2006 FX35/FX45
UNIFIED METER AND A/C AMPPFP:27760
System DescriptionNKS00300

For the unified meter and A/C amp., the signal required for controlling the combination meter are inte-
grated in the A/C auto amp.

The unified meter and A/C amp. corresponds to a CONSULT-II function (self-diagnosis results, CAN diag-
nosis support monitor, data monitor).
COMBINATION METER CONTROL FUNCTION

Unified meter and A/C amp. receives necessary information for combination meter from each unit by CAN
communication.

Unified meter and A/C amp. transmits a signals with communication line (TX, RX) between unified meter
and A/C amp. and combination meter.
Input/output signals between unified meter and A/C amp. and combination meter.
NOTE:
Combination meter performs fail-safe operation when unified meter and A/C amp. communication is malfunctioning. Refer to DI-8,
"FAIL-SAFE" . Unit Input Output
Unified meter and A/C amp.

Seat belt buckle switch signal (Driver's side)

Parking brake signal

Illumination control nighttime required signal

Refuel status signal

Low-fuel warning lamp condition signal

Combination meter receive error signal

Delivery destination data signal

Combination meter specifications signal

Vehicle speed signal (8-pulse)

Engine speed signal

Engine coolant temperature signal

Fuel level sensor signal (resistance value)

Malfunction indicator lamp signal

ABS warning lamp signal

Low tire pressure warning lamp signal

Brake warning lamp signal

A/T CHECK warning lamp signal

ICC warning lamp signal

Oil pressure switch signal

Door switch signal

AWD warning lamp signal

Key warning lamp signal

VDC OFF indicator lamp signal

SLIP indicator lamp signal

CRUISE indicator lamp signal

SET indicator lamp signal

High beam request signal

Turn indicator signal

Snow mode switch signal

ICC system display signal

Shift position indicator signal

Manual mode indicator signal

Manual mode gear position signal

CAN communication condition signal of A/T

Position lights request signal

Buzzer output signal

DI-32
UNIFIED METER AND A/C AMP
Revision: 2006 December 2006 FX35/FX45
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch either “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR” screen.
3. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “MAIN SIG- NALS” is selected, main items will be monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring, then the status of the moni- tored item can be recorded. To stop recording, touch “STOP”.
Display Item List
X: Applicable
MAIN SIGNALS Monitors main signals.
SELECTION FROM MENU Selects and monitors individual signal.
SKIA4957E
Display item [Unit] MAIN
SIGNALS SELECTION
FROM MENU Contents
SPEED METER [km/h] or [mph] X X Displays the value of vehicle speed signal, which is input from
ABS actuator and electric unit (control unit).
SPEED OUTPUT [km/h] or [mph] X X Displays the value of vehicle speed signal, which is transmitted
to each unit with CAN communication.
TACHO METER [rpm] X X Displays the value of engine speed signal, which is input from
ECM.
W TEMP METER [ °C] or [ °F] X X Displays the value of engine coolant temperature signal, which
is input from ECM.
FUEL METER [lit.] X X Displays the value, which processes a resistance signal from
fuel gauge.
DISTANCE [km] or [mile] X X Displays the value, which is calculated by vehicle speed signal
from ABS actuator and electric unit (control unit), fuel gauge and
fuel consumption from ECM.
FUEL W/L [ON/OFF] X X Indicates [ON/OFF] condition of low-fuel warning lamp.
MIL [ON/OFF] X Indicates [ON/OFF] condition of malfunction indicator lamp.
AIR PRES W/L [ON/OFF] X Indicates [ON/OFF] condition of low tire pressure warning lamp.
SEAT BELT W/L [ON/OFF] X Indicates [ON/OFF] condition of seat belt warning lamp.
BUZZER [ON/OFF] X X Indicates [ON/OFF] condition of buzzer.
DOOR W/L [ON/OFF] X Indicates [ON/OFF] condition of door warning lamp.
HI-BEAM IND [ON/OFF] X Indicates [ON/OFF] condition of high beam indicator.
TURN IND [ON/OFF] X Indicates [ON/OFF] condition of turn indicator.
OIL W/L [ON/OFF] X Indicates [ON/OFF] condition of oil pressure warning lamp.
VDC/TCS IND [ON/OFF] X Indicates [ON/OFF] condition of VDC OFF indicator lamp.
ABS W/L [ON/OFF] X Indicates [ON/OFF] condition of ABS warning lamp.
SLIP IND [ON/OFF] X Indicates [ON/OFF] condition of SLIP indicator lamp.
BRAKE W/L [ON/OFF]* X Indicates [ON/OFF] condition of brake warning lamp.
KEY G W/L [ON/OFF] X Indicates [ON/OFF] condition of key warning lamp (green).
KEY R W/L [ON/OFF] X Indicates [ON/OFF] condition of key warning lamp (red).

DI-38
WARNING LAMPS
Revision: 2006 December 2006 FX35/FX45
WARNING LAMPSPFP:24814
System DescriptionNKS003HX
OIL PRESSURE WARNING LAMP
Oil pressure warning lamp turns ON when reducing engine oil pressure abnormally.

IPDM E/R reads oil pressure switch signal from oil pressure switch, and transmits the signal to unified
meter and A/C amp. through BCM with CAN communication.

Unified meter and A/C amp. transmits oil pressure switch signal to combination meter with communication
line.

Combination meter turns oil pressure warning lamp ON with received oil pressure switch signal.
PKIB7655E

DI-48
WARNING LAMPS
Revision: 2006 December 2006 FX35/FX45
Oil Pressure Warning Lamp Stays Off (Ignition Switch ON)NKS0030E
1. CHECK OIL PRESSURE WARNING LAMP OPERATION
Activate IPDM E/R auto active test. Refer to PG-21, "
Auto Active Test" .
Does oil pressure warning lamp blink?
YES >> GO TO 2.
NO >> GO TO 5.
2. CHECK IPDM E/R INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between IPDM E/R harness connector E9 termi- nal 57 and ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and
Installation of IPDM E/R" .
NG >> GO TO 3.
3. CHECK OIL PRESSURE SWITCH
1. Turn ignition switch OFF.
2. Disconnect oil pressure switch connector.
3. Check oil pressure switch. Refer to DI-51, "
OIL PRESSURE SWITCH" .
OK or NG
OK >> GO TO 4.
NG >> Replace oil pressure switch.
4. CHECK OIL PRESSURE SWITCH CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector E9 ter- minal 57 and oil pressure switch harness connector F1 terminal
1.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and
Installation of IPDM E/R" .
NG >> Repair harness or connector.
5. CHECK UNIFIED METER AND A/C AMP. (CONSULT-II)
Perform self-diagnosis of unified meter and A/C amp. Refer to DI-31, "
CONSULT-II Function (METER A/C
AMP)" .
Self-diagnosis results
No malfunction detected >> GO TO 6.
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts. 57 – Ground : Approx. 0 V
SKIB6449E
57 – 1 : Continuity should exist.
PKIB3572E

WARNING LAMPS DI-49
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6. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER A/C AMP” on CONSULT-II.
2. Operate ignition switch with “OIL W/L” of “DATA MONITOR” and check operation status.
OK or NG
OK >> Replace combination meter.
NG >> GO TO 7.
7. CHECK BCM INPUT SIGNAL
1. Select “BCM” on CONSULT-II.
2. Select “DATA MONITOR” of “SIGNAL BUFFER”.
3. Operate ignition switch with “OIL PRESS SW” of “DATA MONI- TOR” and check operate status.
OK or NG
OK >> Replace BCM. Refer to BCS-15, "Removal and Installa-
tion of BCM" .
NG >> Replace IPDM E/R. Refer to PG-28, "
Removal and
Installation of IPDM E/R" .
Oil Pressure Warning Lamp Does Not Turn Off (Oil Pressure Is Normal)NKS0030F
NOTE:
For oil pressure inspection, refer to LU-8, "
OIL PRESSURE CHECK" (VQ35DE) or LU-25, "OIL PRESSURE
CHECK" (VK45DE)
1. CHECK OIL PRESSURE WARNING LAMP OPERATION
Activate IPDM E/R auto active test. Refer to PG-21, "
Auto Active Test" .
Does oil pressure warning lamp blink?
YES >> GO TO 2.
NO >> GO TO 5. “OIL W/L”
When ignition switch is in ON
position (Engine stopped) : ON
When engine running : OFF
PKIA2064E
“OIL PRESS SW”
When ignition switch is in ON
position (Engine stopped) : ON
When engine running : OFF
SKIA8709E

DI-50
WARNING LAMPS
Revision: 2006 December 2006 FX35/FX45
2. CHECK IPDM E/R OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect oil pressure switch connector.
3. Turn ignition switch ON.
4. Check voltage between oil pressure switch harness connector F1 terminal 1 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3. CHECK OIL PRESSURE SWITCH
1. Turn ignition switch OFF.
2. Check oil pressure switch. Refer to DI-51, "
OIL PRESSURE SWITCH" .
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R" .
NG >> Replace oil pressure switch.
4. CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector E9 ter- minal 57 and ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and
Installation of IPDM E/R" .
NG >> Repair harness or connector.
5. CHECK IPDM E/R (CONSULT-II)
Perform self-diagnosis of IPDM E/R. Refer to PG-19, "
CONSULT-II Function (IPDM E/R)" .
Self-diagnosis results
No malfunction detected >> Replace combination meter.
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts. 1 – Ground : Approx. 12 V
PKIB3573E
57 – Ground : Continuity should not exist.
SKIA5013E

WARNING LAMPS DI-51
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Revision: 2006 December 2006 FX35/FX45
Component InspectionNKS0030G
OIL PRESSURE SWITCH
Check continuity between oil pressure switch and ground.
Condition Oil pressure [kPa (kg/cm2 , psi)] Continuity
Engine stopped Less than 29 (0.3, 4) Yes Engine running More than 29 (0.3, 4) No
ELF0044D