DTC DETECTION LOGIC
DTC No. | Trouble diagnosis name | DTC detecting condition | Possible cause |
P0327 | Knock sensor circuit low input | An excessively low voltage from the sensor is sent to ECM. |
|
P0328 | Knock sensor circuit high input | An excessively low voltage from the sensor is sent to ECM. |
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Is 1st trip DTC detected?
YES >> Go to EC, "Diagnosis Procedure".
NO >> INSPECTION END
1.CHECK GROUND CONNECTION
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
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit or short to ground 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 4.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK KNOCK SENSOR
Refer to EC, "Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace knock sensor. Refer to EM, "Exploded View".
5.CHECK INTERMITTENT INCIDENT
Refer to GI, "Intermittent Incident".
>> INSPECTION END
Component Inspection
1.CHECK KNOCK SENSOR
NOTE:
It is necessary to use an ohmmeter which can measure more than 10 MΩ.
CAUTION: Do not 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 knock sensor. Refer to EM, "Exploded View".
Engine assembly
Exploded View
1. Engine mounting (RH) stay 2. Engine mount (RH) stay 3. Engine mounting
insulator (RH)
4. Rear engine mounting bracket 5. Rear torque rod 6. Engine mounting bracket
(LH)
7. Engine mounting bracket (LH) 8. Engine mounting insulator (LH) 9. Mass damper
A. Front mark B. Tra ...
Floor trim
Exploded View
1. Harness clip A 2. Harness clip B 3. Floor carpet
4. Carpet hook 5. Front floor spacer (RH) 6. Front floor spacer (LH)
7. Rear floor spacer (LH) 8. Rear floor spacer (RH)
Front
Clip
Removal and Installation
REMOVAL
Remove front seat assemblies (LH/RH). Refer to SE &q ...