P1560

DTC P1560 BACKUP VOLTAGE CIRCUIT MALFUNCTION

1. OUTLINE OF DIAGNOSIS
Detect open or short circuit of the backup voltage circuit.
Judge NG when the backup voltage becomes smaller than the battery voltage.




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 below becomes more than 2.5 seconds.




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

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)