P2554 Possible Causes
- Faulty Fuel Injector Control Module (FICM)
- Faulty Powertrain Control Module (PCM)
- Fuel Injector Control Module harness is open or shorted
- Poor electrical connection in Fuel Injector Control Module circuit
How to Fix Code P2554
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Engine Light On (or Service Engine Soon Warning Light)
P2554 Meaning
The DEPM (Diesel Engine Power Monitor) strategy resides in the Transmission Control Module (TCM) located inside the Powertrain Control Module (PCM). The function of DEPM is to monitor engine RPM when there is no power demand from the Accelerator Pedal Position (APP) sensor.
During normal engine idle operation, the DEPM RPM value should always be higher than engine RPM. If engine RPM does not exceed the DEPM limit, DEPM disables the crankshaft and camshaft output signal sent from PCM to Fuel Injector Control Module (FICM).