wiring INFINITI FX35 2004 Service Manual

POWER SUPPLY AND GROUND CIRCUIT
EC-787
[VK45DE]
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Revision: 2004 November 2004 FX35/FX45
3. DETECT MALFUNCTIONING PART
Check the following.

Fuse block (J/B) connector M1

15A fuse

Harness for open or short between ECM and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
Refer to EC-791, "
Ground Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace ground connections.
5. CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-I
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 1, 115, 116 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors F102, M82

Harness for open or short between ECM and ground
>> Repair open circuit or short to power in harness or connectors.
PBIB2195E
Continuity should exist.

POWER SUPPLY AND GROUND CIRCUIT
EC-789
[VK45DE]
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Revision: 2004 November 2004 FX35/FX45
10. CHECK ECM POWER SUPPLY CIRCUIT-V
1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector E7.
3. Check harness continuity between ECM terminals 119, 120 and IPDM E/R terminal 18.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 15.
NG >> GO TO 11.
11 . DETECT MALFUNCTIONING PART
Check the following.

Harness or connectors E211, M41

Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
12. CHECK ECM POWER SUPPLY CIRCUIT-VI
1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector E9.
3. Check harness continuity between ECM terminal 111 and IPDM E/R terminal 46.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 14.
NG >> GO TO 13.
13. DETECT MALFUNCTIONING PART
Check the following.

Harness or connectors E211, M41

Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
14. CHECK 20A FUSE
1. Disconnect 20A fuse from IPDM E/R.
2. Check 20A fuse.
OK or NG
OK >> GO TO 18.
NG >> Replace 20A fuse.Continuity should exist.
Continuity should exist.

EC-790
[VK45DE]
POWER SUPPLY AND GROUND CIRCUIT
Revision: 2004 November 2004 FX35/FX45
15. CHECK GROUND CONNECTIONS
1. Loosen and retighten three ground screws on the body.
Refer to EC-791, "
Ground Inspection" .
OK or NG
OK >> GO TO 16.
NG >> Repair or replace ground connections.
16. CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-II
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 1, 115, 116 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 18.
NG >> GO TO 17.
17. DETECT MALFUNCTIONING PART
Check the following.

Harness or connectors F102, M82

Harness for open or short between ECM and ground
>> Repair open circuit or short to power in harness or connectors.
18. CHECK INTERMITTENT INCIDENT
Refer to EC-784, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair open circuit or short to power in harness or connectors.
PBIB2195E
Continuity should exist.

EC-792
[VK45DE]
DTC U1000, U1001 CAN COMMUNICATION LINE
Revision: 2004 November 2004 FX35/FX45
DTC U1000, U1001 CAN COMMUNICATION LINEPFP:23710
DescriptionABS00C0A
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis LogicABS00C0B
*1: This self-diagnosis has the one trip detection logic.
*2: The MIL will not light up for this diagnosis.
DTC Confirmation ProcedureABS00C0C
1. Turn ignition switch ON and wait at least 3 seconds.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. If 1st trip DTC is detected, go to EC-794, "
Diagnostic Procedure" .
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
U1000*
1
1000*1CAN communication
line

ECM cannot communicate to other control
units.

ECM cannot communicate for more than the
specified time.

Harness or connectors
(CAN communication line is open or
shorted) U1001*
2
1001*2

DTC U1000, U1001 CAN COMMUNICATION LINE
EC-793
[VK45DE]
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Revision: 2004 November 2004 FX35/FX45
Wiring DiagramABS00C0D
TBWM0218E

EC-798
[VK45DE]
DTC P0011, P0021 IVT CONTROL
Revision: 2004 November 2004 FX35/FX45
Wiring DiagramABS00C0J
BANK 1
TBWM0277E

EC-802
[VK45DE]
DTC P0011, P0021 IVT CONTROL
Revision: 2004 November 2004 FX35/FX45
2. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR POWER SUPPLY CIRCUIT
1. Disconnect intake valve timing control position sensor harness connector.
2. Turn ignition switch ON.
3. Check voltage between intake valve timing control position sen-
sor terminal 3 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E211, M41

Harness connectors F102, M82

Joint connector-3

Harness for open or short between intake valve timing control position sensor and ECM

Harness for open or short between intake valve timing control position sensor and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR GROUND CIRCUIT FOR OPEN AND
SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between intake valve timing control position sensor terminal 1 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.Voltage: Battery voltage
PBIB1517E
SEF509Y
Continuity should exist.

DTC P0011, P0021 IVT CONTROL
EC-803
[VK45DE]
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Revision: 2004 November 2004 FX35/FX45
5. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors F102, M82

Harness for open or short between intake valve timing control position sensor and ground
>> Repair open circuit or short to power in harness or connectors.
6. CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN
AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 72 and intake valve timing control position sensor (bank
1) terminal 2 or ECM terminal 53 and intake valve timing control position sensor (bank 2) terminal 2.
Refer to Wiring Diagram.
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 INTAKE VALVE TIMING CONTROL POSITION SENSOR
Refer to EC-805, "
Component Inspection" .
OK or NG
OK >> GO TO 8.
NG >> Replace intake valve timing control position sensor.
8. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Disconnect intake valve timing control solenoid valve harness connector.
2. Turn ignition switch ON.
3. Check voltage between intake valve timing control solenoid
valve terminal 2 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.Continuity should exist.
Voltage: Battery voltage
PBIB1517E
PBIB0192E

EC-804
[VK45DE]
DTC P0011, P0021 IVT CONTROL
Revision: 2004 November 2004 FX35/FX45
9. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E19, F49

Harness for open or short between intake valve timing control solenoid valve and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
10. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR
OPEN AND SHORT
1. Check harness continuity between ECM terminal 10 and intake valve timing control solenoid valve (bank
1) terminal 1 or ECM terminal 11 and intake valve timing control solenoid valve (bank 2) terminal 1.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 11.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
11 . CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to EC-805, "
Component Inspection" .
OK or NG
OK >> GO TO 12.
NG >> Replace intake valve timing control solenoid valve.
12. CHECK CRANKSHAFT POSITION SENSOR (POS)
Refer to EC-964, "
Component Inspection" .
OK or NG
OK >> GO TO 13.
NG >> Replace crankshaft position sensor (POS).
13. CHECK CAMSHAFT POSITION SENSOR (PHASE)
Refer to EC-970, "
Component Inspection" .
OK or NG
OK >> GO TO 14.
NG >> Replace camshaft position sensor (PHASE).
14. CHECK CAMSHAFT
Check accumulation of debris to the signal pick-up portion of the camshaft. Refer to EM-208, "
CAMSHAFT" .
OK or NG
OK >> GO TO 15.
NG >> Remove debris and clean the signal pick-up cutout of camshaft.
15. CHECK INTERMITTENT INCIDENT
Refer toEC-784, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
For wiring diagram, refer to EC-961
for CKP sensor (POS), and EC-967 for CMP sensor (PHASE).
>>INSPECTION END Continuity should exist.

EC-808
[VK45DE]
DTC P0031, P0032, P0051, P0052 HO2S1 HEATER
Revision: 2004 November 2004 FX35/FX45
Wiring DiagramABS00C0R
BANK 1
TBWM0221E