P1544

DTC P1544 EXHAUST GAS TEMPERATURE TOO HIGH

1. OUTLINE OF DIAGNOSIS
Detect the malfunction of high exhaust gas temperature.
Judge NG when the exhaust gas becomes too high.




2. ENABLE CONDITION

3. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.

4. DIAGNOSTIC METHOD




- Abnormality Judgment
Judge NG when the continuous time of completing the malfunction criteria becomes more than 8.2 seconds.




- Normality Judgment
Judge OK and clear the NG when the continuous time of completing the malfunction criteria becomes more than 8.2 seconds.

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

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

7. FAIL SAFE
None

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