control INFINITI M35 2007 Factory Service Manual

LAN-90
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TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ECM. Refer to EC-154, "
POWER SUPPLY AND
GROUND CIRCUIT" (VQ engine), EC-858, "POWER SUPPLY AND GROUND CIRCUIT" (VK engine).
OK or NG
OK >>
Present error: Replace the ECM. Refer to EC-85, "Procedure After Replacing ECM" (VQ
engine), EC-787, "
Procedure After Replacing ECM" (VK engine).

Past error: Error was detected in the ECM branch line.
NG >> Repair the power supply and the ground circuit.
AWD Control Unit Branch Line CircuitNKS004GL
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (unit side and con-
nector side).
–AWD control unit connector
–Harness connector F102
–Harness connector M72
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of AWD control unit.
2. Check the resistance between the AWD control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the AWD control unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the AWD control unit. Refer to TF-16, "
Circuit Diagram" .
OK or NG
OK >>
Present error: Replace the AWD control unit. Refer to TF-39, "Removal and Installation" .

Past error: Error was detected in the AWD control unit branch line.
NG >> Repair the power supply and the ground circuit.
AWD control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
F109 8 16 Approx. 54 – 66

TROUBLE DIAGNOSIS
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AFS Control Unit Branch Line CircuitNKS004H1
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (unit side and con-
nector side).
–AFS control unit connector
–Harness connector F102
–Harness connector M72
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of AFS control unit.
2. Check the resistance between the AFS control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the AFS control unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the AFS control unit. Refer to LT- 1 4 2 , "
Schematic" .
OK or NG
OK >>
Present error: Replace the AFS control unit. Refer to LT- 1 9 2 , "Removal and Installation of AFS
Control Unit" .

Past error: Error was detected in the AFS control unit branch line.
NG >> Repair the power supply and the ground circuit.
BCM Branch Line CircuitNKS004GD
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the BCM for damage, bend and loose connection (unit side and
connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
AFS control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
F110 30 7 Approx. 54 – 66

TROUBLE DIAGNOSIS
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TCM Branch Line CircuitNKS004GK
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (unit side and con-
nector side).
–A/T assembly connector
–Harness connector F102
–Harness connector M72
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of A/T assembly.
2. Check the resistance between the A/T assembly harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the TCM branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the TCM. Refer to AT- 1 8 0 , "
MAIN POWER SUPPLY AND
GROUND CIRCUIT" .
OK or NG
OK >>
Present error: Replace the control valve with TCM.

Past error: Error was detected in the TCM branch line.
NG >> Repair the power supply and the ground circuit.
NAVI Control Unit Branch Line CircuitNKS004GI
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (unit side and con-
nector side).
–NAVI control unit connector
–Harness connector M216
–Harness connector M53
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
A/T assembly harness connector
Resistance (Ω)
Connector No. Terminal No.
F42 3 8 Approx. 54 – 66

LAN-94
[CAN]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of NAVI control unit.
2. Check the resistance between the NAVI control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the NAVI control unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply, ignition signal and the ground circuit of the NAVI control unit. Refer to AV- 1 7 1 , "
Sche-
matic — BOSE Surround Audio 5.1ch System —" .
OK or NG
OK >>
Present error: Replace the NAVI control unit. Refer to AV- 2 8 2 , "AV ( N AV I ) C o n t r o l U n i t" .

Past error: Error was detected in the NAVI control unit branch line.
NG >> Repair the power supply and the ground circuit.
AV Control Unit Branch Line CircuitNKS004HO
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (unit side and con-
nector side).
–AV control unit connector
–Harness connector M216
–Harness connector M53
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of AV control unit.
2. Check the resistance between the AV control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the AV control unit branch line.
NAVI control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
M210 71 72 Approx. 54 – 66
AV control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
M210 71 72 Approx. 54 – 66

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3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply, ignition signal and the ground circuit of the AV control unit. Refer to AV- 4 2 , "
Sche-
matic — BOSE Surround Audio 5.1ch System —" .
OK or NG
OK >>
Present error: Replace the AV control unit. Refer to AV- 1 3 1 , "AV ( N AV I ) C o n t r o l U n i t" .

Past error: Error was detected in the AV control unit branch line.
NG >> Repair the power supply and the ground circuit.
Data Link Connector Branch Line CircuitNKS004GE
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of data link connector for damage, bend and loose connection (con-
nector side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
Check the resistance between the data link connector terminals.
OK or NG
OK >>
Present error: Check the following items again.
–Decision of CAN system type.
–Not received CONSULT-II data (SELECT SYSTEM, SELF-DIAG RESULTS, CAN DIAG SUP-
PORT MNTR).
–Procedure for detecting root cause.

Past error: Error was detected in the data link connector branch line circuit.
NG >> Repair the data link connector branch line.
Intelligent Key Unit Branch Line CircuitNKS004GF
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the Intelligent Key unit for damage, bend and loose connection
(unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
Data link connector
Resistance (Ω)
Connector No. Terminal No.
M60 6 14 Approx. 54 – 66

TROUBLE DIAGNOSIS
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Steering Angle Sensor Branch Line CircuitNKS004GH
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the steering angle sensor for damage, bend and loose connection
(unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of steering angle sensor.
2. Check the resistance between the steering angle sensor harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the steering angle sensor branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the steering angle sensor. Refer to BRC-14, "
Schematic"
(Models with VDC), LT- 1 4 2 , "Schematic" (Models with AFS).
OK or NG
OK >>
Present error: Replace the steering angle sensor. Refer to BRC-60, "Removal and Installation" .

Past error: Error was detected in the steering angle sensor branch line.
NG >> Repair the power supply and the ground circuit.
Low Tire Pressure Warning Control Unit Branch Line CircuitNKS004H3
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the low tire pressure warning control unit for damage, bend and
loose connection (unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
Steering angle sensor harness connector
Resistance (Ω)
Connector No. Terminal No.
M47 4 5 Approx. 54 – 66

LAN-98
[CAN]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of low tire pressure warning control unit.
2. Check the resistance between the low tire pressure warning control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the low tire pressure warning control unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the low tire pressure warning control unit. Refer to WT-13,
"Schematic" .
OK or NG
OK >>
Present error: Replace the low tire pressure warning control unit. Refer to WT-40, "Low Tire
Pressure Warning Control Unit" .

Past error: Error was detected in the low tire pressure warning control unit branch line.
NG >> Repair the power supply and the ground circuit.
RAS Control Unit Branch Line CircuitNKS004H4
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the RAS control unit for damage, bend and loose connection (unit
side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of RAS control unit.
2. Check the resistance between the RAS control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Replace the body No. 2 harness.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the RAS control unit. Refer to STC-20, "
Schematic" .
OK or NG
OK >>
Present error: Replace the RAS control unit.

Past error: Error was detected in the RAS control unit branch line.
NG >> Repair the power supply and the ground circuit.
Low tire pressure warning control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
M19 15 16 Approx. 54 – 66
RAS control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
B476 1 8 Approx. 54 – 66

TROUBLE DIAGNOSIS
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Pre-Crash Seat Belt Control Unit Branch Line CircuitNKS004H5
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the pre-crash seat belt control unit for damage, bend and loose
connection (unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of pre-crash seat belt control unit.
2. Check the resistance between the pre-crash seat belt control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Replace the body harness.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the pre-crash seat belt control unit. Refer to SB-6, "
Sche-
matic" .
OK or NG
OK >>
Present error: Replace the pre-crash seat belt control unit. Refer to SB-28, "Removal and
Installation of Pre-Crash Seat Belt Control Unit" .

Past error: Error was detected in the pre-crash seat belt control unit branch line.
NG >> Repair the power supply and the ground circuit.
Driver Seat Control Unit Branch Line CircuitNKS004GB
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (unit side and con-
nector side).
–Driver seat control unit connector
–Harness connector B202
–Harness connector B15
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
Pre-crash seat belt control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
B142 24 22 Approx. 54 – 66

LAN-100
[CAN]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of driver seat control unit.
2. Check the resistance between the driver seat control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Replace the body harness.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the driver seat control unit. Refer to SE-17, "
Schematic" .
OK or NG
OK >>
Present error: Replace the driver seat control unit.

Past error: Error was detected in the driver seat control unit branch line.
NG >> Repair the power supply and the ground circuit.
ABS Actuator and Electric Unit (Control Unit) Branch Line CircuitNKS004GM
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend
and loose connection (unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of ABS actuator and electric unit (control unit).
2. Check the resistance between the ABS actuator and electric unit (control unit) harness connector termi-
nals.
OK or NG
OK >> GO TO 3.
NG >> Repair the ABS actuator and electric unit (control unit) branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to
BRC-14, "
Schematic" .
OK or NG
OK >>
Present error: Replace the ABS actuator and electric unit (control unit). Refer to BRC-57,
"Removal and Installation" .

Past error: Error was detected in the ABS actuator and electric unit (control unit) branch line.
NG >> Repair the power supply and the ground circuit.
Driver seat control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
B204 3 19 Approx. 54 – 66
ABS actuator and electric unit (control unit) harness connector
Resistance (Ω)
Connector No. Terminal No.
E30 35 14 Approx. 54 – 66

LT-1
LIGHTING SYSTEM
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CONTENTS
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LIGHTING SYSTEM
PRECAUTIONS .......................................................... 6
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 6
General Precautions for Service Operations ............ 7
HEADLAMP (FOR USA) - CONVENTIONAL TYPE - ..... 8
Component Parts and Harness Connector Location ..... 8
System Description .................................................. 8
OUTLINE ............................................................... 9
HEADLAMP OPERATION .................................. 10
COMBINATION SWITCH READING FUNCTION .... 11
EXTERIOR LAMP BATTERY SAVER CONTROL .... 11
AUTO LIGHT OPERATION .................................. 11
CAN Communication System Description ............... 11
CAN Communication Unit ....................................... 11
Schematic .............................................................. 12
Wiring Diagram — H/LAMP — ............................... 13
Terminals and Reference Values for BCM ............. 19
Terminals and Reference Values for IPDM E/R ..... 21
How to Perform Trouble Diagnoses ....................... 21
Preliminary Check .................................................. 22
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 22
CONSULT-II Functions (BCM) ............................... 23
CONSULT-II BASIC OPERATION ....................... 23
DATA MONITOR ................................................. 23
ACTIVE TEST ..................................................... 24
CONSULT-II Functions (IPDM E/R) ....................... 25
CONSULT-II BASIC OPERATION ....................... 25
DATA MONITOR ................................................. 25
ACTIVE TEST ..................................................... 25
Headlamp High Beam Does Not Illuminate (Both
Sides) ..................................................................... 26
Headlamp High Beam Does Not Illuminate (One
Side) ....................................................................... 29
High Beam Indicator Lamp Does Not Illuminate .... 30
Headlamp Low Beam Does Not Illuminate (Both
Sides) ..................................................................... 31
Headlamp Low Beam Does Not Illuminate (One
Side) ....................................................................... 34Headlamps Do Not Turn OFF ................................. 36
Aiming Adjustment .................................................. 37
PREPARATION BEFORE ADJUSTING .............. 37
LOW BEAM AND HIGH BEAM ........................... 37
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ............ 38
Bulb Replacement .................................................. 38
HEADLAMP (INNER) HIGH BEAM ..................... 38
HEADLAMP (OUTER) LOW BEAM .................... 39
PARKING LAMP LAMP ....................................... 39
FRONT TURN SIGNAL LAMP ............................ 39
FRONT SIDE MARKER LAMP ........................... 39
Removal and Installation ........................................ 40
REMOVAL ........................................................... 40
INSTALLATION ................................................... 40
Disassembly and Assembly .................................... 41
DISASSEMBLY ................................................... 41
ASSEMBLY ......................................................... 41
HEADLAMP (FOR USA) - XENON TYPE - .............. 42
Component Parts and Harness Connector Location ... 42
System Description ................................................. 42
OUTLINE ............................................................. 43
HEADLAMP OPERATION ................................... 44
COMBINATION SWITCH READING FUNCTION ... 45
EXTERIOR LAMP BATTERY SAVER CONTROL ... 45
AUTO LIGHT OPERATION ................................. 45
XENON HEADLAMP ........................................... 45
CAN Communication System Description .............. 45
CAN Communication Unit ....................................... 45
Schematic ............................................................... 46
Wiring Diagram — H/LAMP — ............................... 47
Terminals and Reference Values for BCM .............. 53
Terminals and Reference Values for IPDM E/R ...... 55
How to Perform Trouble Diagnoses ....................... 55
Preliminary Check .................................................. 56
CHECK POWER SUPPLY AND GROUND CIR-
CUIT .................................................................... 56
CONSULT-II Functions (BCM) ................................ 57
CONSULT-II BASIC OPERATION ....................... 57
DATA MONITOR ................................................. 57