DTC Diagnosis Procedure
- CHECK DTC PRIORITY
If DTC P0335 is displayed with DTC P0643, first perform the confirmation procedure (trouble diagnosis) for DTC P0643.
Is DTC P0643 detected?
YES
Perform diagnosis for P0643. Refer to DTC Description .
NO
GO TO 2.
- CHECK HARNESS CONNECTOR
- Turn ignition switch OFF.
- Disconnect crankshaft position (CKP) sensor harness connectors.
- Reconnect crankshaft position (CKP) sensor harness connectors.
- Perform DTC confirmation procedure. Refer to Confirmation Procedure .
Is DTC detected?
YES
GO TO 3.
NO
INSPECTION END
- CHECK GROUND CONNECTION
Check ground connection. Refer to Ground Inspection in Refer to Inspection .
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace ground connection.
- CHECK CRANKSHAFT POSITION SENSOR POWER SUPPLY CIRCUIT-I
- Disconnect crankshaft position (CKP) sensor harness connector.
- Turn ignition switch ON.
- Check the voltage between CKP sensor harness connector and ground.
CKP sensor
Ground
Voltage (V)
Connector
Terminal
F74
1
Ground
Approx. 5
Is the inspection result normal?
YES
GO TO 6.
NO
GO TO 5.
- CHECK CKP SENSOR POWER SUPPLY CIRCUIT-II
- Turn ignition switch ON.
- Disconnect ECM harness connector.
- Check the continuity between CKP sensor harness connector and ECM harness connector.
CKP sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
F74
1
F91
27
Existed
Is the inspection result normal?
YES
Perform the trouble diagnosis for power supply circuit. Refer to Diagnosis Procedure .
NO
Repair open circuit.
- CHECK CKP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between CKP sensor harness connector and ECM harness connector.
CKP sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
F74
2
F91
44
Existed
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 7.
NO
Repair open circuit, short to ground or short to power in harness or connectors.
- CHECK CKP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Check the continuity between CKP sensor harness connector and ECM harness connector.
CKP sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
F74
3
F91
33
Existed
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 8.
NO
Repair open circuit, short to ground or short to power in harness or connectors.
- Check the continuity between CKP sensor harness connector and ECM harness connector.
- CHECK CRANKSHAFT POSITION SENSOR
Refer to Component Inspection .
Is the inspection result normal?
YES
GO TO 9.
NO
Replace crankshaft position sensor.
- CHECK GEAR TOOTH
Visually check for chipping signal plate gear tooth.
Is the inspection result normal?
YES
GO TO 10.
NO
Replace the signal plate.
- CHECK INTERMITTENT INCIDENT
Refer to Inspection .
INSPECTION END