2007 NISSAN 350Z ECM wiring diagram

EC-5
C
D
E
F
G
H
I
J
K
L
M
ECA
Revision: 2006 November2007 350Z Mode .................................................................... 444
On Board Diagnosis Logic ................................... 444
DTC Confirmation Procedure ............................... 445
Wiring Diagram .................................................... 446
Diagnostic Procedure ........................................... 447
Component Inspection ......................................... 449
DTC P0451 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................. 450
Component Description ........................................ 450
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... 450
On Board Diagnosis Logic ................................... 450
DTC Confirmation Procedure ............................... 451
Diagnostic Procedure ........................................... 452
Component Inspection ......................................... 455
DTC P0452 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................. 456
Component Description ........................................ 456
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... 456
On Board Diagnosis Logic ................................... 456
DTC Confirmation Procedure ............................... 457
Wiring Diagram .................................................... 458
Diagnostic Procedure ........................................... 460
Component Inspection ......................................... 464
DTC P0453 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................. 465
Component Description ........................................ 465
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... 465
On Board Diagnosis Logic ................................... 466
DTC Confirmation Procedure ............................... 466
Wiring Diagram .................................................... 467
Diagnostic Procedure ........................................... 469
Component Inspection ......................................... 474
DTC P0455 EVAP CONTROL SYSTEM ................ 475
On Board Diagnosis Logic ................................... 475
DTC Confirmation Procedure ............................... 476
Diagnostic Procedure ........................................... 477
DTC P0456 EVAP CONTROL SYSTEM ................ 482
On Board Diagnosis Logic ................................... 482
DTC Confirmation Procedure ............................... 483
Overall Function Check ........................................ 483
Diagnostic Procedure ........................................... 484
DTC P0460 FUEL LEVEL SENSOR ...................... 490
Component Description ........................................ 490
On Board Diagnosis Logic ................................... 490
DTC Confirmation Procedure ............................... 490
Diagnostic Procedure ........................................... 490
Removal and Installation ...................................... 491
DTC P0461 FUEL LEVEL SENSOR ...................... 492
Component Description ........................................ 492
On Board Diagnosis Logic ................................... 492
Overall Function Check ........................................ 492
Diagnostic Procedure ........................................... 493
Removal and Installation ...................................... 493
DTC P0462, P0463 FUEL LEVEL SENSOR .......... 494
Component Description ........................................ 494
On Board Diagnosis Logic ................................... 494DTC Confirmation Procedure ...............................494
Diagnostic Procedure ...........................................494
Removal and Installation ......................................495
DTC P0500 VSS ......................................................496
Description ............................................................496
On Board Diagnosis Logic ....................................496
DTC Confirmation Procedure ...............................496
Overall Function Check ........................................497
Diagnostic Procedure ...........................................497
DTC P0506 ISC SYSTEM .......................................498
Description ............................................................498
On Board Diagnosis Logic ....................................498
DTC Confirmation Procedure ...............................498
Diagnostic Procedure ...........................................498
DTC P0507 ISC SYSTEM .......................................500
Description ............................................................500
On Board Diagnosis Logic ....................................500
DTC Confirmation Procedure ...............................500
Diagnostic Procedure ...........................................500
DTC P0550 PSP SENSOR .....................................502
Component Description ........................................502
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................502
On Board Diagnosis Logic ....................................502
DTC Confirmation Procedure ...............................502
Wiring Diagram .....................................................503
Diagnostic Procedure ...........................................505
Component Inspection ..........................................507
Removal and Installation ......................................507
DTC P0603 ECM POWER SUPPLY .......................508
Component Description ........................................508
On Board Diagnosis Logic ....................................508
DTC Confirmation Procedure ...............................508
Wiring Diagram .....................................................509
Diagnostic Procedure ...........................................510
DTC P0605 ECM .....................................................512
Component Description ........................................512
On Board Diagnosis Logic ....................................512
DTC Confirmation Procedure ...............................512
Diagnostic Procedure ...........................................513
DTC P0643 SENSOR POWER SUPPLY ................514
On Board Diagnosis Logic ....................................514
DTC Confirmation Procedure ...............................514
Wiring Diagram .....................................................515
Diagnostic Procedure ...........................................517
DTC P0850 PNP SWITCH ......................................520
Component Description ........................................520
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................520
On Board Diagnosis Logic ....................................520
DTC Confirmation Procedure ...............................520
Overall Function Check ........................................520
Wiring Diagram .....................................................522
Diagnostic Procedure ...........................................525
DTC P1078 P1084 EVT CONTROL POSITION SEN-
SOR .........................................................................528
Component Description ........................................528
CONSULT-III Reference Value in Data Monitor
Mode .....................................................................528

EC-146
POWER SUPPLY AND GROUND CIRCUIT
Revision: 2006 November2007 350Z
4. CHECK GROUND CONNECTIONS
Models with VDC system, navigation system or telephone
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-150, "
Ground Inspection" .
Models without VDC system, navigation system and telephone
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-150, "
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 8, 123, 124, 127, 128 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.
1. Body ground E17 2. Body ground E43 3. Body ground B102
:Vehicle front
1. Body ground E17 2. Body ground E43 3. Body ground F152
(Passenger side view with dash side
finisher removed)
:Vehicle front
PBIB3560E
PBIB3561E
Continuity should exist.

EC-148
POWER SUPPLY AND GROUND CIRCUIT
Revision: 2006 November2007 350Z
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 125 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 18.
NG >> GO TO 11.
11 . DETECT MALFUNCTIONING PART
Check the following.

Harness or connectors E108, M15

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 IPDM E/R harness connector E9.
2. Check harness continuity between ECM terminal 24 and IPDM E/R terminal 46.
Refer to Wiring Diagram.
3. 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 E10, F1

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 15A FUSE
1. Disconnect 15A fuse from IPDM E/R.
2. Check 15A fuse.
OK or NG
OK >> GO TO 18.
NG >> Replace 15A fuse.Continuity should exist.
Continuity should exist.

POWER SUPPLY AND GROUND CIRCUIT
EC-149
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
15. CHECK GROUND CONNECTIONS
Models with VDC system, navigation system or telephone
1. Loosen and retighten ground screws on the body. Refer to EC-150, "
Ground Inspection" .
Models without VDC system, navigation system and telephone
1. Loosen and retighten ground screws on the body. Refer to EC-150, "
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 8, 123, 124, 127, 128 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.
1. Body ground E17 2. Body ground E43 3. Body ground B102
:Vehicle front
1. Body ground E17 2. Body ground E43 3. Body ground F152
(Passenger side view with dash side
finisher removed)
:Vehicle front
PBIB3560E
PBIB3561E
Continuity should exist.

DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-171
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect air fuel ratio (A/F) sensor 1 harness connector.
2. Turn ignition switch ON.
3. Check voltage between air fuel ratio sensor (A/F) sensor 1 ter-
minal 4 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E12, F3

15A fuse

Harness for open or short between air fuel ratio (A/F) sensor 1 and fuse
>> Repair or replace harness or connectors.
4. CHECK AIR FUEL RATIO (A/F) SENSOR 1 HEATER OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 1 (bank 1) or 5 (bank 2) and air fuel ratio (A/F) sensor 1
terminal 3.
Refer to Wiring Diagram.
4. Also check harness for short to ground or short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
1. A/F sensor 1 (bank 1) harness con-
nector2. A/F sensor 1 (bank 2) harness con-
nector
:Ve h ic le f o rn t
Voltage: Battery voltage
PBIB3516E
PBIB3308E
Continuity should exist.

DTC P0037, P0038, P0057, P0058 HO2S2 HEATER
EC-181
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
4. CHECK HO2S2 HEATER OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal and HO2S2 terminal as follows.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK HEATED OXYGEN SENSOR 2 HEATER
Refer to EC-181, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace malfunctioning heated oxygen sensor 2.
6. CHECK INTERMITTENT INCIDENT
Refer to EC-141, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS0004P
HEATED OXYGEN SENSOR 2 HEATER
1. Check resistance between HO2S2 terminals as follows.
2. If NG, replace heated oxygen sensor 2.
CAUTION:

Discard any heated oxygen sensor which has been dropped
from a height of more than 0.5 m (19.7 in) onto a hard sur-
face such as a concrete floor; use a new one.

Before installing new oxygen sensor, clean exhaust system
threads using Oxygen Sensor Thread Cleaner tool J-43897-
18 or J-43897-12 and approved anti-seize lubricant.
DTCTe r m i n a l s
Bank
ECM Sensor
P0037, P0038 17 3 1
P0057, P0058 33 3 2
Continuity should exist.
Terminal No. Resistance
2 and 3 3.4 - 4.4 Ω [at 25°C (77°F)]
1 and 2, 3, 4
∞ Ω
(Continuity should not exist)
4 and 1, 2, 3
PBIB3310E

EC-188
DTC P0075, P0081 IVT CONTROL SOLENOID VALVE
Revision: 2006 November2007 350Z
Diagnostic ProcedureNBS000BW
1. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect intake valve timing control solenoid valve harness connector.
3. Turn ignition switch ON.
4. Check voltage between intake valve timing control solenoid
valve terminal 2 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E12, F3

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.
3. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR
OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 18 (bank 1) or 29 (bank 2) and intake valve timing con-
trol solenoid valve terminal 1. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
1. Exhaust valve timing control magnet
retarder (bank 1) harness connector2. Intake valve timing control solenoid
valve (bank 1) harness connector3. Intake valve timing control solenoid
valve (bank 2) harness connector
4. Exhaust valve timing control magnet
retarder (bank 2) harness connector
Voltage: Battery voltage
PBIB3508E
PBIB0192E
Continuity should exist.

DTC P0078 P0084 EVT CONTROL MAGNET RETARDER
EC-195
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
Diagnostic ProcedureNBS0004W
1. CHECK EXHAUST VALVE TIMING CONTROL MAGNET RETARDER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect exhaust valve timing control magnet retarder harness connector.
3. Turn ignition switch ON.
4. Check voltage between exhaust valve timing control magnet
retarder terminal 1 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E12, F3

Harness for open or short between exhaust valve timing control magnet retarder and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
3. CHECK EXHAUST VALVE TIMING CONTROLMAGNET RETARDER OUTPUT SIGNAL CIRCUIT FOR
OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Checking harness continuity between exhaust valve timing control magnet retarder terminal 2 and ECM
terminal 6 (bank 1), 7 (bank 2).
Refer to Wiring Diagram
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
1. Exhaust valve timing control magnet
retarder (bank 1) harness connector2. Intake valve timing control solenoid
valve (bank 1) harness connector3. Intake valve timing control solenoid
valve (bank 2) harness connector
4. Exhaust valve timing control magnet
retarder (bank 2) harness connector
Voltage: Battery voltage
PBIB3508E
PBIB3468E
Continuity should exist.