If there is a short to battery in injector #4 circuit, the ECM sets DTC P0271.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Electrical check | 1. Poor connection 2. Short to battery in control circuit 3. Injector |
Enable Conditions |
•
Engine speed > 80 rpm
•
8 V < Battery voltage < 15 V | |
Threshold Value |
•
Circuit short to battery | |
Diagnostic Time |
•
Continuous | |
MIL ON Condition |
•
2 driving cycles |