P0340

P0340 CMP SENSOR (PHASE)

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure 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-I

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 .
NO- GO TO 3.

3. PERFORM DTC CONFIRMATION PROCEDURE-I

1.Maintaining engine speed at more than 800 rpm for at least 5 seconds.
2.Check 1st trip DTC.
Is 1st trip DTC detected?
YES- Proceed to .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK STARTING SYSTEM

Turn ignition switch to START position.
Does the engine turn over? Does the starter motor operate?
YES- GO TO 2.
NO- Check starting system (Initial Inspection and Diagnostic Overview.).

2. CHECK CAMSHAFT POSITION (CMP) SENSOR (PHASE) POWER SUPPLY

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





Is the inspection result normal?
YES- GO TO 4.
NO- GO TO 3.

3. CHECK SENSOR POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect ECM harness connector.
3.Check harness connector for short to power and short to ground, between the following terminals.





Is inspection result normal?
YES- Perform the trouble diagnosis for power supply circuit.
NO- Repair or replace error-detected parts.

4. CHECK CMP SENSOR (PHASE) GROUND CIRCUIT

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





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

5. CHECK CMP SENSOR (PHASE) INPUT SIGNAL CIRCUIT

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





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

6. CHECK CAMSHAFT POSITION SENSOR (PHASE)

Check the camshaft position sensor (PHASE). .
Is the inspection result normal?
YES- GO TO 7.
NO- Replace camshaft position sensor (PHASE). Removal And Installation.

7. CHECK CAMSHAFT (INT)

Check the following.





- Accumulation of debris to the signal plate of camshaft rear end
- Chipping signal plate of camshaft rear end
Is the inspection result normal?
YES- Check intermittent incident. Intermittent Incident.
NO- Remove debris and clean the signal plate of camshaft rear end or replace camshaft. Removal And Installation.


Component Inspection


1. CHECK CAMSHAFT POSITION SENSOR (PHASE)-I

1.Turn ignition switch OFF.
2.Loosen the fixing bolt of the sensor.
3.Disconnect camshaft position sensor (PHASE) harness connector.
4.Remove the sensor.





5.Visually check the sensor for chipping.
Is the inspection result normal?
YES- GO TO 2.
NO- Replace camshaft position sensor (PHASE).

2. CHECK CAMSHAFT POSITION SENSOR (PHASE)-II

Check the resistance camshaft position sensor (PHASE) terminals as per the following.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace camshaft position sensor (PHASE). Removal And Installation.