Diagnosis Procedure

Turn ignition switch to START position.

Does the engine turn over? Does the starter motor operate?

YES

GO TO 2.

NO

Check starting system. (Refer to Work Flow (With GR8-1200 NI) or Work Flow (Without GR8-1200 NI) .)

1. Disconnect camshaft position (CMP) sensor (PHASE) harness connector.
2. Turn ignition switch ON.
3. Check the voltage between CMP sensor (PHASE) harness connector and ground.

   DTC	CMP sensor (PHASE)			-	Voltage (V)
   	Bank	Connector	+
   			Terminal
   P0340	1	F55	1	Ground	Approx. 5
   P0345	2	F60	1

Is the inspection result normal?

YES

GO TO 4.

NO

GO TO 3.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between CMP sensor (PHASE) harness connector and ECM harness connector.

   DTC	CMP sensor (PHASE)			ECM		Continuity
   	Bank	Connector	Terminal	Connector	Terminal
   P0340	1	F55	1	F14	92	Existed
   P0345	2	F60	1

Is the inspection result normal?

YES

Check sensor power supply 2 circuit. Refer to Diagnosis Procedure .

NO

Repair or replace error-detected parts.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between CMP sensor (PHASE) harness connector and ECM harness connector.

   DTC	CMP sensor (PHASE)			ECM		Continuity
   	Bank	Connector	Terminal	Connector	Terminal
   P0340	1	F55	2	F14	90	Existed
   P0345	2	F60	2

4. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES

GO TO 5.

NO

Repair open circuit, short to ground or short to power in harness or connectors.

1. Check the continuity between CMP sensor (PHASE) harness connector and ECM harness connector.

   DTC	CMP sensor (PHASE)			ECM		Continuity
   	Bank	Connector	Terminal	Connector	Terminal
   P0340	1	F55	3	F14	84	Existed
   P0345	2	F60	3		89

2. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES

GO TO 6.

NO

Repair open circuit, short to ground or short to power in harness or connectors.

Check camshaft position sensor (PHASE). Refer to Component Inspection .

Is the inspection result normal?

YES

GO TO 7.

NO

Replace malfunctioning camshaft position sensor (PHASE). Refer to Exploded View .

Check the following.

• Accumulation of debris to the signal plate of camshaft rear end

  Courtesy of NISSAN NORTH AMERICA, INC.

• Chipping signal plate of camshaft rear end

Is the inspection result normal?

YES

INSPECTION END

NO

Remove debris and clean the signal plate of camshaft rear end or replace camshaft. Refer to Removal and Installation .