2007 INFINITI M35 ignition

LAN-56
[CAN]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
Ignition switch ON signal T R R
Ignition switch signal T R R
Key ID signal T R
Key switch signal T R
Low beam request signal T R
Oil pressure switch signalTR
RT
Position light request signal T R R
Rear window defogger switch signal T R
Sleep wake up signal T R R R R
Theft warning horn request signal T R
Trunk switch signal T R R
Turn indicator signal T R R
A/T CHECK indicator lamp signal T R
A/T position indicator signal R T R R R
A/T self-diagnosis signal R T
Current gear position signal T R R
Manual mode indicator signal T R R
N range signal T R R
Output shaft revolution signal R R T R
P range signal T R R R R
R range signal T R R R
Turbine revolution signal R T R
A/C switch/indicator signalTR
RT
System setting signalTR R
RT T
Door lock/unlock trunk open request signal R T
Hazard and horn request signal R T
Key warning signalTR
Meter display signalTR
RT
Panic alarm request signal R T
Power window open request signal R T
A/C evaporator temperature signal R T
Distance to empty signal R T
Fuel level low warning signal R T
Fuel level sensor signal R T
Manual mode shift down signal R T
Manual mode shift up signal R T
Manual mode signal R T
Not manual mode signal R T
Parking brake switch signal R R TSignals
ECM
4WD
AFS
*1
BCM
LANE
*2
TCM
AV
I-KEY
M&A
STRG
TPMS
PSB
ADP
ABS
ICC
*3
IPDM-E

TROUBLE DIAGNOSIS
LAN-83
[CAN]
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LAN
Revision: 2007 April2007 M35/M45
Main Line Between TCM and Data Link ConnectorNKS004G7
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 (connector side
and harness side).
–Harness connector M61
–Harness connector M62
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the following harness connectors.
–Harness connectors F102 and M72
–Harness connectors M61 and M62
2. Check the continuity between harness connectors.
OK or NG
OK >> GO TO 3.
NG >> Repair the main line between the harness connector M72 and M61.
3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Check the continuity between the harness connector and the data link connector.
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 main line between the TCM and the data link connector.
NG >> Repair the main line between the harness connector M62 and the data link connector.
Harness connector Harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
M7243H
M611Yes
42H 2 Yes
Harness connector Data link connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
M621
M606Yes
214Yes

LAN-84
[CAN]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
Main Line Between Data Link Connector and Pre-crash Seat Belt Control UnitNKS004GY
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 (connector side
and harness side).
–Harness connector M66
–Harness connector B418
–Harness connector B437
–Harness connector B67
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the harness connectors M66 and B418.
2. Check the continuity between the data link connector and the harness connector.
OK or NG
OK >> GO TO 3.
NG >> Repair the main line between the data link connector and the harness connector M66.
3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the harness connectors B437 and B67.
2. Check the continuity between harness connectors.
OK or NG
OK >> GO TO 4.
NG >> Replace the body No. 2 harness.
Data link connector Harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
M606
M6638P Yes
14 39P Yes
Harness connector Harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
B41838P
B4371Yes
39P 12 Yes

TROUBLE DIAGNOSIS
LAN-85
[CAN]
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LAN
Revision: 2007 April2007 M35/M45
4. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the connector of pre-crash seat belt control unit.
2. Check the continuity between the harness connector and the pre-crash seat belt control unit harness con-
nector.
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 main line between the data link connector and the pre-
crash seat belt control unit.
NG >> Replace the body harness.
Main Line Between Data Link Connector and RAS Control UnitNKS004GX
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 (connector side
and harness side).
–Harness connector M66
–Harness connector B418
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the harness connectors M66 and B418.
2. Check the continuity between the data link connector and the harness connector.
OK or NG
OK >> GO TO 3.
NG >> Repair the main line between the data link connector and the harness connector M66.
Harness connectorPre-crash seat belt control unit
harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
B671
B14224 Yes
12 22 Yes
Data link connector Harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
M606
M6638P Yes
14 39P Yes

LAN-86
[CAN]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the connector of RAS control unit.
2. Check the continuity between the harness connector and the RAS control unit harness connector.
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 main line between the data link connector and the RAS
control unit.
NG >> Replace the body No. 2 harness.
Main Line Between RAS Control Unit and Pre-crash Seat Belt Control UnitNKS004GZ
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 (connector side
and harness side).
–Harness connector B437
–Harness connector B67
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the connector of RAS control unit and the harness connectors B437 and B67.
2. Check the continuity between the RAS control unit harness connector and the harness connector.
OK or NG
OK >> GO TO 3.
NG >> Replace the body No. 2 harness.
Harness connector RAS control unit harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
B41838P
B4761Yes
39P 8 Yes
RAS control unit harness connector Harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
B4761
B4371Yes
812Yes

TROUBLE DIAGNOSIS
LAN-87
[CAN]
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LAN
Revision: 2007 April2007 M35/M45
3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the connector of pre-crash seat belt control unit.
2. Check the continuity between the harness connector and the pre-crash seat belt control unit harness con-
nector.
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 main line between the RAS control unit and the pre-crash
seat belt control unit.
NG >> Replace the body harness.
Main Line Between Pre-crash Seat Belt Control Unit and Driver Seat Control
Unit
NKS004G8
INSPECTION PROCEDURE
1. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect the following harness connectors.
–ECM harness connector
–Pre-crash seat belt control unit harness connector
–Harness connector B15 and B202
4. Check continuity between the pre-crash seat belt control unit harness connector and the harness connec-
tor.
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 main line between the pre-crash seat belt control unit and
the driver seat control unit.
NG >> Replace the body harness.
Harness connectorPre-crash seat belt control unit
harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
B671
B14224 Yes
12 22 Yes
Pre-crash seat belt control unit
harness connectorHarness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
B14224
B153Yes
22 19 Yes

LAN-88
[CAN]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
Main Line Between Driver Seat Control Unit and ABS Actuator and Electric Unit
(Control Unit)
NKS004G9
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 (connector side
and harness side).
–Harness connector B3
–Harness connector E105
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the following harness connectors.
–Harness connectors B202 and B15
–Harness connectors B3 and E105
2. Check the continuity between harness connectors.
OK or NG
OK >> GO TO 3.
NG >> Replace the body harness.
3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the connector of ABS actuator and electric unit (control unit).
2. Check the continuity between the harness connector and the ABS actuator and electric unit (control unit)
harness connector.
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 main line between the driver seat control unit and the ABS
actuator and electric unit (control unit).
NG >> Repair the main line between the harness connector E105 and the ABS actuator and electric unit
(control unit).
Harness connector Harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
B153
B39Yes
19 8 Yes
Harness connectorABS actuator and electric unit (control unit)
harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
E1059
E3035 Yes
814Yes

TROUBLE DIAGNOSIS
LAN-89
[CAN]
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LAN
Revision: 2007 April2007 M35/M45
Main Line Between ABS Actuator and Electric Unit (Control Unit) and ICC Sen-
sor Integrated Unit
NKS004H0
INSPECTION PROCEDURE
1. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect the following harness connectors.
–ABS actuator and electric unit (control unit) harness connector
–ICC sensor integrated unit harness connector
–IPDM E/R harness connector
4. Check continuity between the ABS actuator and electric unit (control unit) harness connector and the ICC
sensor integrated unit harness connector.
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 main line between the ABS actuator and electric unit (con-
trol unit) and the ICC sensor integrated unit.
NG >> Repair the main line between the ABS actuator and electric unit (control unit) and the ICC sensor
integrated unit.
ECM Branch Line CircuitNKS004GA
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 ECM 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 ECM.
2. Check the resistance between the ECM harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the ECM branch line.
ABS actuator and electric unit (control unit)
harness connectorICC sensor integrated unit
harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
E3035
E613Yes
14 6 Yes
ECM harness connector
Resistance (Ω)
Connector No. Terminal No.
M71 94 86 Approx. 108 – 132