P0328

DTC P0328 KNOCK SENSOR 1 CIRCUIT HIGH INPUT (BANK 1 OR SINGLE
SENSOR)

1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of the knock sensor. Judge NG when out of the standard value.




2. COMPONENT DESCRIPTION




3. ENABLE CONDITION

4. GENERAL DRIVING CYCLE
Always perform diagnosis continuously.

5. DIAGNOSTIC METHOD




- Abnormality Judgment
Judge NG when the continuous time of completing the malfunction criteria becomes more than 1 second.




- Normality Judgment
Judge OK and clear NG when the malfunction criteria are completed.

6. DTC CLEAR CONDITION
- When the OK idling cycle was completed 40 times in a row
- When "Clear Memory" was performed

7. MALFUNCTION INDICATOR LIGHT CLEAR CONDITION
- When the OK driving cycle was completed 3 times in a row
- When "Clear Memory" was performed

8. FAIL SAFE
Knock compensation:
- Knock compensation final timing advance and retard value = knock compensation + whole learning compensation value + partial learning compensation value.
- At normal: knock compensation = 0 degree CA is fixed.
- At trouble: knock compensation = -5 degree CA. (Retard 5 degree CA.)
- Not allowed to update the whole learning compensation factor.
- Not allowed to calculate the partial learning zone compensation value.

9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)