P0335

P0335 CKP SENSOR (POS)

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
1.Turn ignition switch OFF and wait at least 10 seconds.
2.Turn ignition switch ON.
3.Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:


Before performing the following procedure, confirm that battery voltage is more than 10.5 V with ignition switch ON.
- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

1.Start engine and let it idle for at least 5 seconds.
If engine does not start, crank engine for at least 2 seconds.
2.Check 1st trip DTC.
Is 1st trip DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY

1.Disconnect crankshaft position (CKP) sensor (POS) harness connector.
2.Turn ignition switch ON.
3.Check the voltage between CKP sensor (POS) harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- GO TO 2.
Revision: March 20122013 Infiniti JX

2. CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT

1.Turn ignition switch ON.
2.Disconnect ECM harness connector.
3.Check the continuity between CKP sensor (POS) harness connector and ECM harness connector.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace error-detected parts.

3. CHECK SENSOR POWER SUPPLY 2 CIRCUIT

Check sensor power supply 2 circuit. Refer to "Diagnosis Procedure" Testing and Inspection.
Is the inspection result normal?
YES- Perform the trouble diagnosis for power supply circuit.
NO- Repair or replace error-detected parts.

4. CHECK CKP SENSOR (POS) GROUND CIRCUIT

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





4.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace error-detected parts.

5. CHECK CKP SENSOR (POS) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.Check the continuity between CKP sensor (POS) harness connector and ECM harness connector.





2.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace error-detected parts.

6. CHECK CRANKSHAFT POSITION SENSOR (POS)

Check crankshaft position sensor (POS). Refer to "Component Inspection" .
Is the inspection result normal?
YES- GO TO 7.
NO- Replace crankshaft position sensor (POS). Refer to "Exploded View" Exploded View.

7. CHECK GEAR TOOTH

Visually check for chipping signal plate gear tooth.
Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Replace the drive plate. Refer to "Disassembly and Assembly" Disassembly and Assembly.
Revision: March 20122013 Infiniti JX


Component Inspection


1. CHECK CRANKSHAFT POSITION SENSOR (POS)-I

1.Loosen the fixing bolt of the sensor.
2.Disconnect crankshaft position sensor (POS) harness connector.
3.Remove the sensor.





4.Visually check the sensor for chipping.
Is the inspection result normal?
YES- GO TO 2.
NO- Replace crankshaft position sensor (POS). Refer to EM36, "Exploded View".

2. CHECK CRANKSHAFT POSITION SENSOR (POS)-II

Check the resistance between crankshaft position sensor (POS) terminals as per the following.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace crankshaft position sensor (POS). Refer to "Exploded View" Exploded View.
Revision: March 20122013 Infiniti JX