Feilkodeindeks · medium
P1338
Fuel pump feedback circuit low / high voltage
Fuel pump feedback circuit low / high voltage
Scope: 2.5L/3.0L gasoline · System(s): EMS OBD II · Factory MIL flag: 2 · Default action: ECM Default: –Fuel pump feedback control inhibited
Common causes
- ECM to fuel pump control module control and / or feedback circuits: open circuit
- short circuit
- high resistance Fuel pump control module failure
Quick checks
- Confirm freeze-frame and conditions when the code set
- Inspect connectors, grounds, and harness for the circuit named in the code