P1282high severityPowertrain
Fuel Pump Relay Control Circuit
on 2014 Ram 2500 6.7L I6 Cummins Diesel · 4WD
What this code means
The PCM has detected a malfunction in the fuel pump relay control circuit. The relay is not responding correctly to PCM commands, which can prevent the fuel pump from operating or cause it to run continuously.
Symptoms
- Check Engine Light
- Engine cranks but will not start
- Intermittent stalling
- Fuel pump runs continuously with key on
- No fuel pump prime on key-on
Common causes
- Faulty fuel pump relay
- Wiring open or short in relay control circuit
- Corroded relay socket
- PCM driver circuit failure
- Blown fuel pump fuse
Diagnostic steps
- Swap fuel pump relay with known good relay of same type
- Check for power and ground at relay socket
- Test PCM relay control output
- Inspect relay socket for corrosion or burnt contacts
- Check fuel pump fuse
Repair notes
Replace the fuel pump relay and inspect the relay socket for corrosion or heat damage.
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