 1.CHECK GROUND CONNECTION
- Turn ignition switch OFF.
- Check ground connection M95. Refer to Ground Inspection in Circuit Inspection.
Is the inspection result normal?
YES >>GO TO 2. NO >>Repair or replace ground connection.
 2.CHECK KNOCK SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
- Disconnect knock sensor harness connector and ECM harness connector.
- Check the continuity between knock sensor harness connector and ECM harness connector.
DTC
| Knock sensor
| ECM
| Continuity
| Bank
| Connector
| Terminal
| Connector
| Terminal
| P0327, P0328
| 1
| F202
| 2
| F102
| 71
| Existed
| P0332, P0333
| 2
| F203
| 2
|
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >>GO TO 4. NO >>GO TO 3.
 3.DETECT MALFUNCTIONING PART
Check the following. - Harness connectors F47, F201
- Harness for open or short between knock sensor and ECM
>>Repair open circuit or short to power in harness or connectors.
 4.CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Check the continuity between knock sensor harness connector and ECM harness connector.
DTC
| Knock sensor
| ECM
| Continuity
| Bank
| Connector
| Terminal
| Connector
| Terminal
| P0327, P0328
| 1
| F202
| 1
| F102
| 72
| Existed
| P0332, P0333
| 2
| F203
| 1
| 76
|
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >>GO TO 6. NO >>GO TO 5.
 5.DETECT MALFUNCTIONING PART
Check the following. - Harness connectors F47, F201
- Harness for open or short between ECM and knock sensor
>>Repair open circuit, short to ground or short to power in harness or connectors.
 6.CHECK KNOCK SENSOR
 7.CHECK INTERMITTENT INCIDENT
|