bcm INFINITI FX35 2007 Service Manual

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-223
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 July 2007 FX35/FX45
4. CHECK POWER SUPPLY FOR NATS ANTENNA AMP.
Check voltage between NATS antenna amp. connector M25 terminal 1 (L/R) and ground with CONSULT-II or
tester.
OK or NG
OK >> GO TO 5.
NG >> Check harness for open or short between NATS antenna amp. and fuse.
5. CHECK NATS ANTENNA AMP. SIGNAL LINE- 1
Check voltage between NATS antenna amp. connector M25 terminal 2 (G/B) and ground with analogue tester.
OK or NG
OK >> GO TO 6.
NG >>

Check harness for open or short between NATS
antenna amp. and BCM.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-II. For initialization, refer to “CONSULT-II Operation Manual NATS–IVIS/NVIS”.
6. CHECK NATS ANTENNA AMP. SIGNAL LINE- 2
Check voltage between NATS antenna amp. connector M25 terminal 4 (BR) and ground with analogue tester.
OK or NG
OK >> GO TO 7.
NG >>

Check harness for open or short between NATS
antenna amp. and BCM.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-II. For initialization, refer to “CONSULT-II Operation Manual NATS–IVIS/NVIS”.
1 (L/R) – Ground : Battery voltage
PIIA6145E
Before inserting mechanical key in ignition knob
Voltage: 0V
Just after inserting mechanical key in ignition knob : Pointer of tester should move.
PIIA6146E
Before inserting mechanical key in ignition knob Voltage: 0V
Just after inserting mechanical key in ignition knob : Pointer of tester should move.
PIIA6147E

BL-224
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 July 2007 FX35/FX45
7. CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between NATS antenna amp. connector M25 terminal 3 (B) and ground.
OK or NG
OK >> NATS antenna amp. is malfunctioning.
NG >>

Check harness for open or short between NATS
antenna amp. and ground.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-II. For initialization, refer to “CON-
SULT-II Operation Manual NATS–IVIS/NVIS”.
Diagnostic Procedure 6NIS001Q2
“SECURITY INDICATOR LAMP DOES NOT LIGHT UP”
1. CHECK FUSE

Check 10A fuse [No.19, located in the fuse block (J/B)]
NOTE:
Refer to BL-205, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> Replace fuse.
2. CHECK SECURITY INDICATOR LAMP
1. Install 10A fuse [No.19, located in the fuse block (J/B)]
2. Start engine and turn ignition switch OFF.
3. Check the security indicator lamp lights up.
OK or NG
OK >> Inspection END.
NG >> GO TO 3.
3. CHECK SECURITY INDICATOR LAMP POWER SUPPLY CIRCUIT
1. Disconnect security indicator lamp connector.
2. Check voltage between security indicator lamp connector M38 terminal 1 (R/W) and ground.
OK or NG
OK >> GO TO 4.
NG >> Check harness for open or short between fuse and security indicator lamp.
3 (B) – Ground : Continuity should exist.
PIIA6148E
Security indicator lamp should light up.
1 (R/W) – Ground : Battery voltage
PIIA6149E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-225
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 July 2007 FX35/FX45
4. CHECK BCM FUNCTION
1. Connect security indicator lamp connector.
2. Disconnect BCM connector M3.
3. Check voltage between BCM connector M3 terminal 23 (G/OR) and ground.
OK or NG
OK >> BCM is malfunctioning.

Replace BCM.

Perform initialization with CONSULT-II.

For initialization, refer to “CONSULT-II Operation
Manual NATS-IVIS/NVIS”.
NG >> Check the following.

Harness for open or short between security indicator lamp and BCM.

Indicator lamp condition
Removal and Installation NATS Antenna Amp.NIS001Q3
REMOVAL
CAUTION:
Before servicing SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
1. Remove the steering column cover. Refer to IP-11, "
Removal and Installation" .
2. Disconnect the NATS antenna amp. connect, remove the screw and NATS antenna amp.
INSTALLATION
Install in the reverse order of removal. 23 (G/OR) – Ground : Battery voltage
PIIA6150E
PIIA6064E

INTEGRATED HOMELINK TRANSMITTER BL-227
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 July 2007 FX35/FX45
Trouble DiagnosesNIS001Q5
DIAGNOSTIC PROCEDURE
SYMPTOM: Transmitter Does Not Activate Receiver.
Before conducting the procedure given below, make sure that system receiver (garage door opener, etc.)
operates with original, hand-held transmitter. If NG, receiver or hand-held transmitter is malfunctioning, not
vehicle related.
1. CHECK ILLUMINATION
1. Turn ignition switch “OFF”.
2. Does red light (LED) of transmitter illuminate when any transmit- ter button is pressed?
YES or NO
YES >> GO TO 2.
NO >> GO TO 3.
2. CHECK TRANSMITTER
Check transmitter with Tool*.
*:For details, refer to Technical Service Bulletin.
OK or NG
OK >> Receiver or hand-held transmitter malfunction, not vehicle related.
NG >> Replace inside mirror assembly.
3. CHECK BCM OUTPUT POWER SUPPLY
Does room lamp come on when driver side door opened. Refer to LT- 1 5 2
.
Does room lamp illumination?
YES >> GO TO 4.
NO >> Repair or replace the malfunction part.
4. CHECK POWER SUPPLY
1. Disconnect transmitter connector.
2. Turn ignition switch “OFF”.
3. Check voltage between auto anti-dazzling inside mirror (homelink universal transceiver) connector R4 terminal 10 (B/W)
and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness between BCM and anti-daz-
zling inside mirror (homelink universal transceiver).
PIIA6142E
10 (B/W) – Ground : Battery voltage
PIIB8546E

DI-2Revision: 2006 July 2007 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. ...................................................... ... 65
Terminals and Reference Value for Combination
Meter ................................................................... ... 66
CONSULT-II Function (METER A/C AMP) .......... ... 66
CONSULT-II Function (BCM) ............................... ... 66
DIAGNOSIS ITEMS DESCRIPTION ................ ... 66
CONSULT-II BASIC OPERATION .................... ... 66
DATA MONITOR ............................................... ... 66
ACTIVE TEST .................................................. ... 67
SELF-DIAG RESULTS ..................................... ... 67
Trouble Diagnosis ................................................ ... 67
HOW TO PERFORM TROUBLE DIAGNOSIS . ... 67
PRELIMINARY INSPECTION .......................... ... 68
Symptom Chart .................................................... ... 68
Power Supply and Ground Circuit Inspection ...... ... 68
Combination Meter Buzzer Circuit Inspection ...... ... 69
Front Door Switch (Driver Side) Signal Inspection ... 71
Key Switch Signal Inspection (Without Intelligent
Key) ..................................................................... ... 72
Key Switch and Ignition Knob Switch Signal Inspec-
tion (With Intelligent Key, When Mechanical Key Is
Used) ................................................................... ... 73
Lighting Switch Signal Inspection ........................ ... 74
Seat Belt Buckle Switch (Driver Side) Signal Inspec-
tion ....................................................................... ... 75
Component Inspection ......................................... ... 76
FRONT DOOR SWITCH (DRIVER SIDE) ........ ... 76
KEY SWITCH ................................................... ... 76
KEY SWITCH AND IGNITION KNOB SWITCH ... 76
SEAT BELT BUCKLE SWITCH (DRIVER SIDE) ... 76
LANE DEPARTURE WARNING SYSTEM ............. ... 77
Precautions for Lane Departure Warning (LDW)
system ................................................................. ... 77
System Description .............................................. ... 77 LDW SYSTEM OPERATION ............................
... 77
POWER SUPPLY AND GROUND CIRCUIT .... ... 79
Action Test ........................................................... ... 80
LDW SYSTEM RUNNING TEST ...................... ... 80
Camera Aiming Adjustment ................................. ... 80
OUTLINE .......................................................... ... 80
PREPARATION ................................................. ... 80
TARGET SETTING ........................................... ... 80
VEHICLE HEIGHT CHECK .............................. ... 83
AIMING ADJUSTMENT .................................... ... 83
Component Parts and Harness Connector Location ... 87
Schematic ............................................................ ... 88
Wiring Diagram — LDW — .................................. ... 89
Terminals and Reference Value for LDW Camera
Unit ....................................................................... ... 92
CONSULT-II Function (LDW) ............................... ... 92
DESCRIPTION ................................................. ... 92
CONSULT-II BASIC OPERATION .................... ... 92
WORK SUPPORT ............................................ ... 92
SELF-DIAG RESULTS ...................................... ... 92
DATA MONITOR ............................................... ... 93
ACTIVE TEST ................................................... ... 94
Trouble Diagnosis ................................................ ... 95
HOW TO PERFORM TROUBLE DIAGNOSIS . ... 95
SYMPTOM CHART ........................................... ... 95
Preliminary Inspection .......................................... ... 95
Power Supply and Ground Circuit Inspection ...... ... 96
DTC [C1B00] CAMERA UNIT MALF ................... ... 97
DTC [C1B01] CAM AIMING INCMP .................... ... 97
DTC [C1B02] VHCL SPD DATA MALF ................ ... 97
DTC [C1B03] ABNRML TEMP DETECT ............. ... 98
DTC [U1000] CAN COMM CIRCUIT ................... ... 98
DTC [U1010] CONTROL UNIT (CAN) ................. ... 98
LDW Chime Circuit Inspection ............................. ... 98
LDW Switch Circuit Inspection ............................. ... 99
LDW Indicator Lamp Circuit Inspection ................ .102
Turn Signal Input Inspection ................................ .103
Electrical Component Inspection ......................... .103
LDW SWITCH ................................................... .103
Removal and Installation for LDW Camera Unit .. .104
REMOVAL ......................................................... .104
INSTALLATION ................................................. .104
Removal and Installation for LDW Chime ............ .104
REMOVAL ......................................................... .104
INSTALLATION ................................................. .104
Removal and Installation for LDW Switch ............ .104
CAN COMMUNICATION ........................................ .105
System Description .............................................. .105
CAN Communication Unit .................................... .105
COMPASS .............................................................. .106
Precautions for Compass ..................................... .106
System Description .............................................. .106
Troubleshooting ................................................... .107
Zone Variation Setting Procedure ........................ .108
Calibration Procedure .......................................... .108
Wiring Diagram — COMPAS — ........................... .109
Removal and Installation of Compass .................. .110
CLOCK ................................................................... . 111

DI-8
COMBINATION METERS
Revision: 2006 July 2007 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 6 , "
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
Run-flat tire warning lamp

DI-38
WARNING LAMPS
Revision: 2006 July 2007 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

WARNING LAMPS DI-49
C
D E
F
G H
I
J
L
M A
B
DI
Revision: 2006 July 2007 FX35/FX45
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-14, "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-56
WARNING CHIME
Revision: 2006 July 2007 FX35/FX45
WARNING CHIMEPFP:24814
System DescriptionNKS0030J

Buzzer for warning chime system is installed in the combination meter.

The buzzer sounds when the combination meter receives buzzer output signal from each unit through uni-
fied meter and A/C amp.
POWER SUPPLY AND CIRCUIT
Power is supplied at all times

through 50A fusible link (letter M , located in the fuse and fusible link block)

to BCM terminal 55,

through 15A fuse [No. 22, located in the fuse block (J/B)]

to key switch and ignition knob switch terminal 3 (with Intelligent Key)

to key switch terminal 2 (without Intelligent Key), and

to BCM terminal 42,

through 10A fuse [No. 38, located in the fuse and fusible link block (with Intelligent Key)]

to key switch and ignition knob switch terminal 1,

through 10A fuse [No. 19, located in the fuse block (J/B)]

to unified meter and A/C amp. terminal 21, and

to combination meter terminal 8.
When ignition switch is in ON or START position, power is supplied

through 15A fuse [No. 1, located in the fuse block (J/B)]

to BCM terminal 38,

through 10A fuse [No. 12, located in the fuse block (J/B)]

to unified meter and A/C amp. terminal 22,

through 10A fuse [No. 14, located in the fuse block (J/B)]

to combination meter terminal 7.
Ground is supplied

to BCM terminals 49 and 52,

to unified meter and A/C amp. terminals 29 and 30, and

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85.

WARNING CHIME DI-57
C
D E
F
G H
I
J
L
M A
B
DI
Revision: 2006 July 2007 FX35/FX45
IGNITION KEY WARNING CHIME (WITHOUT INTELLIGENT KEY)
With the key inserted into the key switch, and the ignition switch in OFF or ACC position, when driver's door is
opened, the ignition key warning chime will sound.

BCM detects key inserted into the key switch, ignition switch in OFF or ACC position, and front door
switch (driver side) ON. And then transmits buzzer output signal (ignition key warning chime) to unified
meter and A/C amp. with CAN communication.

Unified meter and A/C amp. transmits buzzer output signal (ignition key warning chime) to combination
meter with communication line.

When combination meter receives buzzer output signal (ignition key warning chime), it sounds the buzzer.
IGNITION KEY WARNING CHIME (WITH INTELLIGENT KEY)
When Mechanical Key Is Used
With the key inserted into the ignition switch, and the ignition switch LOCK or ACC position, when driver's door
is opened, the warning chime will sound.

BCM detects key inserted into the key switch, ignition switch in LOCK or ACC position, and front door
switch (driver side) ON. And then transmits buzzer output signal (ignition key warning chime) to unified
meter and A/C amp. with CAN communication.

Unified meter and A/C amp. transmits buzzer output signal (ignition key warning chime) to combination
meter with communication line.

When combination meter receives buzzer output signal (ignition key warning chime), it sounds the buzzer.
When Intelligent Key Is Carried With The Driver
Refer to BL-91, "WARNING AND ALARM FUNCTION" .
SKIB6481E
SKIB7258E