Fuel Pump Module Control Circuit High
Table of contents
P025D MERCURY Possible Causes
- Faulty Fuel Pump Command (FPC)
- FPC Harness is open or shorted
- FPC circuit poor electrical connection
How do I fix code P025D MERCURY?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P025D MERCURY code
The cost of diagnosing the P025D MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P025D MERCURY Description
The Powertrain Control Module (PCM) monitors the Fuel Pump Command (FPC) circuit for a concern. When the PCM commands the Fuel Pump (FP) ON, the PCM is able to detect a short to voltage on the FPC circuit. When the PCM commands the FP OFF, the PCM is able to detect an open circuit or a short to ground on the FPC circuit. The test fails if the voltage is less than or greater than a calibrated limit, for a calibrated amount of time.