For Mexico

P0327, P0328, P0332, P0333 KS

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

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.





- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

1.Start engine and run it for at least 5 seconds at idle speed.
2.Check 1st trip DTC.
Is 1st trip DTC detected?
YES- Go to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK KNOCK SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1.Disconnect knock sensor harness connector and ECM harness connector.
2.Check the continuity between knock sensor harness connector and ECM harness connector.





3.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 2.

2. DETECT MALFUNCTIONING PART

Check the following.
- Harness for open or short between knock sensor and ECM
- Loose or poor connection for each connector and harness
- Repair open circuit or short to power in harness or connectors.

3. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.Check the continuity between knock sensor 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 5.
NO- GO TO 4.

4. DETECT MALFUNCTIONING PART

Check the following.
- Harness for open or short between ECM and knock sensor
- Loose or poor connection for each connector and harness
- Repair open circuit, short to ground or short to power in harness or connectors.

5. CHECK KNOCK SENSOR

Refer to "Component Inspection (Knock Sensor)" .
Is the inspection result normal?
YES- GO TO 6.
NO- Replace malfunctioning knock sensor. Refer to "Exploded View" Exploded View.

6. CHECK INTERMITTENT INCIDENT

Refer to "Intermittent Incident" Intermittent Incident.
- INSPECTION END


Component Inspection (Knock Sensor)


1. CHECK KNOCK SENSOR

1.Turn ignition switch OFF.
2.Disconnect knock sensor harness connector.
3.Check resistance between knock sensor terminals as per the following.
NOTE:
It is necessary to use an ohmmeter which can measure more than 10 Mohms.






CAUTION:
Never use any knock sensors that have been dropped or physically damaged. Use only new ones.
Is the inspection result normal?
YES- INSPECTION END
NO- Replace malfunctioning knock sensor. Refer to "Exploded View" Exploded View.