2007 NISSAN 350Z wiring diagram

DTC P0037, P0038, P0057, P0058 HO2S2 HEATER
EC-181
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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-184
DTC P0075, P0081 IVT CONTROL SOLENOID VALVE
Revision: 2006 November2007 350Z
Wiring DiagramNBS000BV
BANK 1
TBWT1621E

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-191
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EC
Revision: 2006 November2007 350Z
Wiring DiagramNBS0004V
BANK 1
TBWT1623E

DTC P0078 P0084 EVT CONTROL MAGNET RETARDER
EC-195
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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.

EC-200
DTC P0101, P010B MAF SENSOR
Revision: 2006 November2007 350Z
Wiring DiagramNBS00054
BANK 1
TBWT1625E

DTC P0101, P010B MAF SENSOR
EC-205
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Revision: 2006 November2007 350Z
4. CHECK MASS AIR FLOW SENSOR POWER SUPPLY CIRCUIT
1. Disconnect mass air flow sensor harness connector.
2. Turn ignition switch ON.
3. Check voltage between mass air flow sensor terminal 2 and
ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E108, M15

Harness connectors M72, F102

Harness for open or short between IPDM E/R and mass air flow sensor

Harness for open or short between mass air flow sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK MASS AIR FLOW SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between mass air flow sensor terminal 3 and ECM terminal 68 (bank 1), 94
(bank 2).
Refer to Wiring Diagram.
4. 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.
1. Mass air flow sensor (with intake air
temperature sensor) (bank 1)2. Mass air flow sensor (with intake air
temperature sensor) (bank 2)
Voltage: Battery voltage
PBIB3501E
PBIB1168E
Continuity should exist.

EC-206
DTC P0101, P010B MAF SENSOR
Revision: 2006 November2007 350Z
7. CHECK MASS AIR FLOW SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between mass air flow sensor terminal 4 and ECM terminal 77 (bank 1), 79
(bank 2).
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK INTAKE AIR TEMPERATURE SENSOR
Check mass air flow sensor (with intake air temperature sensor) (bank 1).
Refer to EC-245, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace mass air flow sensor (with intake air temperature sensor) (bank 1).
9. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-455, "
Component Inspection" .
OK or NG
OK >> GO TO 10.
NG >> Replace EVAP control system pressure sensor.
10. CHECK MASS AIR FLOW SENSOR
Refer to EC-206, "
Component Inspection" .
OK or NG
OK >> GO TO 11.
NG >> Replace malfunctioning mass air flow sensor.
11 . CHECK INTERMITTENT INCIDENT
Refer to EC-141, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS006UZ
MASS AIR FLOW SENSOR
With CONSULT-III
1. Reconnect all harness connectors disconnected.
2. Start engine and warm it up to normal operating temperature.
3. Connect CONSULT-III and select “DATA MONITOR” mode.
4. Select “MAS A/F SE-B1” and “MAS A/F SE-B2”, and check indication under the following conditions.
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
5. If the voltage is out of specification, proceed the following.
a. Check for the cause of uneven air flow through mass air flow sensor. Refer to following.Continuity should exist.
Monitor item Condition Indication
MAS A/F SE-B1
MAS A/F SE-B2Ignition switch ON (Engine stopped.) Approx. 0.4V
Idle (Engine is warmed-up to normal operating temperature.) 0.8 - 1.1V
2,500 rpm (Engine is warmed-up to normal operating temperature.) 1.4 - 1.7V
Idle to about 4,000 rpm 0.8 - 1.1V to Approx. 2.4V*