ignition INFINITI FX35 2007 Service Manual

TROUBLE DIAGNOSIS LAN-51
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
Front fog light request signal T R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R R
Key fob door unlock signal T R
Key fob ID signal T R
Key switch signal T R
Low beam request signal T R
Oil pressure switch signal RT
TR
Position light request signal T R R
Rear window defogger switch signal T R
Run flat tire warning lamp signal T R
Sleep wake up signal TRRR
RT
Theft warning horn request signal T R
Tire pressure warning lamp signal T R
Turn indicator signal T R
Alarm request signal R T
Back door open request signal R T
Door lock/unlock request signal R T
Ignition knob switch signal R T
Key warning signal T R
Power window open request signal R T
Steering angle sensor signal T R
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
Snow mode switch signal R T
Stop lamp switch signal R T
Turn LED burnout status signal R T
Vehicle speed signal RT
RRRRR T R
A/T shift schedule change demand signal R T
ABS operation signal T
ABS warning lamp signal RT
Brake warning lamp signal RT
SLIP indicator lamp signal RT
Signals
ECM
DISP TCM
BCM
I-KEY
STRG M&AABS
ADP
IPDM-E

TROUBLE DIAGNOSIS LAN-53
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
ICC operation signal R T
ICC system display signal T R
ICC warning lamp signal T R
A/T CHECK indicator lamp signal T R
A/T self-diagnosis signal R T
Current gear position signal R T R
Manual mode indicator signal R T R
Output shaft revolution signal R R T R
P range signal R T R R
Shift position indicator signal R T R
Turbine revolution signal R R T
A/C switch signal R T
Blower fan motor switch signal R T
Day time running light request signal T R
Door lock/unlock status signal T R
Door switch signal R T R R R R
Front fog light request signal T R
Front wiper request signal R T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R R
Key fob door unlock signal T R
Key fob ID signal T R
Key switch signal T R
Low beam request signal T R
Oil pressure switch signal RT
TR
Position light request signal T R R
Rear window defogger switch signal T R
Run flat tire warning lamp signal T R
Sleep wake up signal TRRR
RT
Theft warning horn request signal T R
Tire pressure warning lamp signal T R
Turn indicator signal T R R
Alarm request signal R T
Back door open request signal R T
Door lock/unlock request signal R T
Ignition knob switch signal R T
Key warning signal T R
Power window open request signal R T
Steering angle sensor signal T R
Distance to empty signal R T Signals
ECM
DISP ICC
TCM
BCM
I-KEY
LANE
STRG M&AABS
LASER ADP
IPDM-E

TROUBLE DIAGNOSIS LAN-55
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R
Cooling fan speed request signal T R
Engine coolant temperature signal T R
Engine speed signal T R R R R R
Engine status signal T R
Fuel consumption monitor signal TR
RT
Malfunction indicator lamp signal T R
Wide open throttle position signal T R
AWD warning lamp signal T R
A/C switch/indicator signal TR
RT
System setting signal TR R
RT T
A/T CHECK indicator lamp signal T R
A/T self-diagnosis signal R T
Current gear position signal T R
Manual mode indicator signal T R
Output shaft revolution signal R T
P range signal T R R
Shift position indicator signal T R
Turbine revolution signal R T
A/C switch signal R T
Buzzer output signal TR
TR
Blower fan motor switch signal R T
Day time running light request signal T R
Door lock/unlock status signal T R
Door switch signal R T R R R R
Front fog light request signal T R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R R
Key fob door unlock signal T R
Key fob ID signal T R
Key switch signal T R
Low beam request signal T R
Oil pressure switch signal RT
TR
Position light request signal R T R R Signals
ECM
4WD
DISP TCM
BCM
I-KEY
STRG M&A ABS
ADP
IPDM-E

LAN-56
[CAN]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
NOTE:
CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
Rear window deffoger switch signal T R
Run flat tire warning lamp signal T R
Sleep wake up signal TRRR
RT
Theft warning horn request signal T R
Tire pressure warning lamp signal T R
Turn indicator signal T R
Alarm request signal R T
Back door open request signal R T
Door lock/unlock request signal R T
Ignition knob switch signal R T
Key warning signal T R
Power window open request signal R T
Steering angle sensor signal T R
Snow mode switch signal R T
Turn LED burnout status 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 T
Stop lamp switch signal R R T
Vehicle speed signal RRT
RRRRR T R
A/T shift schedule change demand signal R T
ABS operation signal T
ABS warning lamp signal RT
Brake warning lamp signal RT
SLIP indicator lamp signal RT
TCS operation signal T
VDC OFF indicator lamp signal RT
VDC OFF switch signal T
VDC operation signal T
Front wiper stop position signal R T
High beam status signal R T
Hood switch signal R T
Low beam status signal R T
Rear window defogger control signal R R R T Signals
ECM
4WD
DISP TCM
BCM
I-KEY
STRG
M&AABS
ADP
IPDM-E

LAN-58
[CAN]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Day time running light request signal T R
Door lock/unlock status signal T R
Door switch signal R T R R R R
Front fog light request signal T R
Front wiper request signal R T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R R
Key fob door unlock signal T R
Key fob ID signal T R
Key switch signal T R
Low beam request signal T R
Oil pressure switch signal RT
TR
Position light request signal R T R R
Rear window defogger switch signal T R
Run flat tire warning lamp signal T R
Sleep wake up signal TRRR
RT
Theft warning horn request signal T R
Tire pressure warning lamp signal T R
Turn indicator signal T R R
Alarm request signal R T
Back door open request signal R T
Door lock/unlock request signal R T
Ignition knob switch signal R T
Key warning signal T R
Power window open request signal R T
Steering angle sensor signal T R
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 T
Stop lamp switch signal R R T
Turn LED burnout status signal R T
Vehicle speed signal RR RRT
R R RRR T RR
A/T shift schedule change demand signal R T
ABS malfunction signal R T Signals
ECM
4WD
DISP
ICC
TCM
BCM
I-KEY
LANE
STRG M&A
ABS
LASER ADP
IPDM-E

TROUBLE DIAGNOSIS LAN-77
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
Main Line Between TCM and Data Link ConnectorNKS004NY
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 connector of ECM and the harness connector M82 and F102.
4. 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).
–Not copied from on-board diagnosis.
–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 M82 and the data link connector.
Main Line Between Data Link Connector and Unified Meter and A/C Amp.NKS004NZ
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 ECM connector and the unified meter and A/C amp. connector.
4. Check the continuity between the data link connector and the unified meter and A/C amp. 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).
–Not copied from on-board diagnosis.
–Procedure for detecting root cause.

Past error: Error was detected in the main line between the data link connector and the unified
meter and A/C amp.
NG >> Repair the main line between the data link connector and the unified meter and A/C amp.
Harness connector Data link connector Continuity
Connector No. Terminal No. Connector No. Terminal No.
M82 14H
M5 6Yes
15H 14 Yes
Data link connector Unified meter and A/C amp. harness connector Continuity
Connector No. Terminal No. Connector No. Terminal No.
M5 6
M55 1Yes
14 11 Yes

LAN-78
[CAN]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Main Line Between Unified Meter and A/C Amp. and ABS Actuator and Electric
Unit (Control Unit)
NKS004O0
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 M41
–Harness connector E211
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the connector of unified meter and A/C amp. and the harness connector M41 and E211.
2. Check the continuity between the unified meter and A/C amp. harness connector and the harness con- nector.
OK or NG
OK >> GO TO 3.
NG >> Repair the main line between the unified meter and A/C amp. connector and the harness connec- tor M41.
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).
–Not copied from on-board diagnosis.
–Procedure for detecting root cause.

Past error: Error was detected in the main line between the unified meter and A/C amp. and
ABS actuator and electric unit (control unit).
NG >> Repair the main line between the harness connector E211 and the ABS actuator and electric unit (control unit) harness connector.
Unified meter and A/C amp. harness connector Harness connector Continuity
Connector No. Terminal No. Connector No. Terminal No.
M55 1
M41 29G Yes
11 1 8 G Ye s
Harness connector ABS actuator and electric unit (control unit)
harness connector Continuity
Connector No. Terminal No. Connector No. Terminal No.
E211 29G
E56 11 Ye s
18G 15 Yes

TROUBLE DIAGNOSIS LAN-79
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
Main Line Between ABS Actuator and Electric Unit (Control Unit) and Driver
Seat Control Unit
NKS004O1
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 E205
–Harness connector B5
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the connector of ABS actuator and electric unit (control unit) and the harness connector E205 and B5.
2. Check the continuity between the ABS actuator and electric unit (control unit) harness connector and the harness connector.
OK or NG
OK >> GO TO 3.
NG >> Repair the main line between the ABS actuator and electric unit (control unit) connector and the
harness connector E205.
3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the harness connectors B8 and B151.
2. Check the continuity between the harness connectors.
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).
–Not copied from on-board diagnosis.
–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 driver seat control unit.
NG >> Repair the main line between the harness connector B5 and B8.
ABS actuator and electric unit (control unit) harness connector Harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
E56 11
E205 4Yes
15 10 Yes
Harness connector Harness connector Continuity
Connector No. Terminal No. Connector No. Terminal No.
B5 4
B8 10 Yes
10 9 Yes

LAN-80
[CAN]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
ECM Branch Line CircuitNKS004O2
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.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ECM. Refer to EC-148, "
POWER SUPPLY AND
GROUND CIRCUIT" (VQ35DE), EC-813, "POWER SUPPLY AND GROUND CIRCUIT" (VK45DE).
OK or NG
OK >>
Present error: Replace the ECM. Refer to EC-82, "Procedure After Replacing ECM" (VQ35DE),
EC-744, "
Procedure After Replacing ECM" (VK45DE).

Past error: Error was detected in the ECM branch line.
NG >> Repair the power supply and the ground circuit.
AWD Control Unit Branch Line CircuitNKS004O3
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 AWD 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.
ECM harness connector Resistance ( Ω)
Connector No. Terminal No.
M90 94 86 Approx. 108 – 132

TROUBLE DIAGNOSIS LAN-81
[CAN]
C
D E
F
G H
I
J
L
M A
B
LAN
Revision: 2006 July 2007 FX35/FX45
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, "AWD CONTROL UNIT" .

Past error: Error was detected in the AWD control unit branch line.
NG >> Repair the power supply and the ground circuit.
Display Control Unit Branch Line CircuitNKS004O4
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 display 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 display control unit.
2. Check the resistance between the display control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the display control unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the display control unit. Refer to AV- 5 6 , "
Schematic — INF/D
—" .
OK or NG
OK >>
Present error: Replace the display control unit. Refer to AV- 9 2 , "Removal and Installation of
Display Control Unit" .

Past error: Error was detected in the display control unit branch line.
NG >> Repair the power supply and the ground circuit.
AWD control unit harness connector Resistance ( Ω)
Connector No. Terminal No.
M92 8 16 Approx. 54 – 66
Display control unit harness connector Resistance ( Ω)
Connector No. Terminal No.
M76 25 26 Approx. 54 – 66