2007 INFINITI FX35 diagram

EC-484
[VQ35DE]
DTC P0643 SENSOR POWER SUPPLY
Revision: 2006 July 2007 FX35/FX45
Wiring DiagramNBS003V1
TBWM1400E

DTC P0643 SENSOR POWER SUPPLY EC-487
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
3. CHECK SENSOR POWER SUPPLY CIRCUITS
Check harness for short to power and short to ground, between the following terminals.
OK or NG
OK >> GO TO 6.
NG >> Repair short to ground or short to power in harness or connectors.
4. CHECK COMPONENTS
Check the following.

Refrigerant pressure sensor (Refer to AT C - 8 9 , "COMPONENT INSPECTION" .)

Power steering pressure sensor (Refer to EC-475, "Component Inspection" .)

EVAP control system pressure sensor (Refer to EC-426, "Component Inspection" .)
OK or NG
OK >> GO TO 9.
NG >> Replace malfunctioning component.
5. CHECK ACCELERATOR PEDAL POSITION SENSOR
Refer to EC-582, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.
6. REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Perform EC-83, "
Accelerator Pedal Released Position Learning" .
3. Perform EC-83, "
Throttle Valve Closed Position Learning" .
4. Perform EC-83, "
Idle Air Volume Learning" .
>> INSPECTION END
7. CHECK INTERMITTENT INCIDENT
Refer to EC-147, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
ECM terminal Sensor terminal Reference Wiring Diagram
90 APP sensor terminal 6 EC-578
49 Refrigerant pressure sensor terminal 1EC-664
68 PSP sensor terminal 1EC-472
48 EVAP control system pressure sensor terminal 3EC-429

EC-490
[VQ35DE]
DTC P0850 PNP SWITCH
Revision: 2006 July 2007 FX35/FX45
Wiring DiagramNBS003Y4
TBWM0521E

DTC P0850 PNP SWITCH EC-491
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureNBS003Y5
1. CHECK DTC WITH TCM
Refer to AT- 4 0 , "
OBD-II Diagnostic Trouble Code (DTC)" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace.
2. CHECK STARTING SYSTEM
Turn ignition switch OFF, then turn it to START.
Does starter motor operate?
Ye s o r N o
Ye s > > G O T O 3 .
No >> Refer to SC-11, "
STARTING SYSTEM" .
3. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition switch OFF.
2. Disconnect A/T assembly harness connector.
3. Disconnect “unified meter and A/C amp.” harness connector.
4. Check harness continuity between A/T assembly terminal 9 and “unified meter and A/C amp.” terminal 32. Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors F102, M82

Harness for open or short between A/T assembly and “unified meter and A/C amp.”.
>> Repair open circuit or short to ground or short to power in harness or connectors.
TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
102 LG/B PNP switch [Ignition switch: ON]

Selector lever: P or N
Approximately 0V
[Ignition switch: ON]

Except above position BATTERY VOLTAGE
(11 - 14V)
Continuity should exist.

EC-492
[VQ35DE]
DTC P0850 PNP SWITCH
Revision: 2006 July 2007 FX35/FX45
5. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 102 and “unified meter and A/C amp.” terminal 25. Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-III
1. Disconnect TCM harness connector.
2. Check harness continuity between A/T assembly terminal 9 and TCM terminal 8. Refer to AT- 1 0 7 , "
DTC P0615 START SIGNAL CIRCUIT" .
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK INTERMITTENT INCIDENT
Refer to EC-812, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace.
8. REPLACE “UNIFIED METER AND A/C AMP.”
Refer to DI-28, "
UNIFIED METER AND A/C AMP" .
>> INSPECTION END
Continuity should exist.
Continuity should exist.

EC-500
[VQ35DE]
DTC P1217 ENGINE OVER TEMPERATURE
Revision: 2006 July 2007 FX35/FX45
Wiring DiagramNBS003UL
TBWM1399E

EC-504
[VQ35DE]
DTC P1217 ENGINE OVER TEMPERATURE
Revision: 2006 July 2007 FX35/FX45
PROCEDURE B
1. CHECK COOLILNG FAN POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connectors E6.
3. Check voltage between IPDM E/R terminal 16 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING PART
Check the following.

40A fusible link

Harness for open or short between IPDM E/R and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
3. CHECK COOLING FAN GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check harness continuity between IPDM E/R terminal 15, 38, 60 and ground. Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to power in harness or connectors. Voltage: Battery voltage
PBIB0966E
Continuity should exist.

DTC P1217 ENGINE OVER TEMPERATURE EC-505
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
4. CHECK COOLING FAN MOTOR-1 CIRCUIT-I
1. Disconnect cooling fan motor-1 harness connector.
2. Check voltage between cooling fan motor-1 terminals 1, 2 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check the following.

40A fusible link

Harness connectors E29, E121

Harness for open or short between cooling fan motor-1 and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK COOLING FAN MOTOR-1 CIRCUIT-II
1. Check harness continuity between the following; cooling fan motor-1 terminal 3 and IPDM E/R terminal 13,
cooling fan motor-1 terminal 4 and IPDM E/R terminals 10, 12.
Refer to Wiring diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E29, E121

Harness for open or short between cooling fan motor-1 and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB1554E
Voltage: Battery voltage
PBIB1670E
Continuity should exist.