When short to power in injector #4 signal circuit is detected, ECM sets DTC P0271 and turns the MIL on.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Circuit continuity check | 1. Poor connector connection 2. Short to power in injector #4 control circuit 3. Faulty injector #4 4. Faulty ECM/PCM |
Enable Condition |
•
Engine speed is higher than 240 RPM
•
Battery voltage is at between 10.7V and 16V | |
Threshold Value |
•
Short to power | |
Diagnosis Time |
•
Continuous | |
MIL ON Condition |
•
3 driving cycles |
