Fuel Pump Control Out of Range
Table of contents
P1235 MERCURY Possible Causes
- Faulty Fuel Pump Drive Module (FPDM)
- FPDM harness is open or shorted
- FPDM circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How do I fix code P1235 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 P1235 MERCURY code
The cost of diagnosing the P1235 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)
P1235 MERCURY Description
The P1235 code indicates the Fuel Pump Drive Module (FPDM) detected an invalid or missing Fuel Pump (FP) circuit signal from the Powertrain Control Module (PCM). The FPDM sends a message to the PCM through the FPM circuit, indicating this failure was detected. The PCM sets the DTC when the message is received.