P127D CHRYSLER Possible Causes
- Faulty fuel pump control module
- Fuel pump control circuit wiring harness is open or shorted
- Poor electrical connection in the fuel pump control circuit
How is the P127D CHRYSLER code repaired?
Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Engine light on (or service engine soon warning light)
P127D CHRYSLER Meaning
The Powertrain Control Module (PCM) monitors the fuel pump control. The PCM sets the OBDII code when the fuel pump control does not meet factory specifications.