P025C code meaning
Fuel Pump Module A Control Circuit Low
Powertrain system Generic code P02xx codes Check engine light
What P025C means
On demand-controlled fuel systems the engine module does not drive the pump itself but sends a pump control module the desired pump output on a separate control line, usually as a duty cycle; the module reports back on a monitor line or via CAN. P025C means the control circuit to pump module A reads low, typically a short to ground. On Ford's 3.0 diesel the pump module detects it; on the 6.7 it means a short on the low side of the pump relay – both within 0.5 s. FCA documents it with the warning light on and sometimes a start followed by stalling, often together with P01C6 and P016F; the checks cover the pump module connector, the low-pressure sensor and a ground point for water, corrosion and pushed-back pins.
P025C at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor1 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P025C
- Check engine light on
- Engine starts and dies again
- Starting problems
- Loss of power from low supply pressure
Common causes of P025C
- Most likelyControl line chafed to ground at the frame
- Most likelyWater or corrosion at the pump module connector
- PossibleGround point loose or corroded
- PossiblePump control module faulty internally
- Less likelyPump relay faulty (Ford 6.7)
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Fuel pump control module aFuel pump control wiringEngine control module
What each part of P025C means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 2 | Area: fuel and air metering (injector circuit). |
| 5C | The exact fault in that area. |
What to do next
- Note P025C and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P025C
What does P025C mean?
P025C means "Fuel Pump Module A Control Circuit Low". On demand-controlled fuel systems the engine module does not drive the pump itself but sends a pump control module the desired pump output on a separate control line, usually as a duty cycle; the module reports back on a monitor line or via CAN. It is a generic code, so it means the same on every make.
Is it safe to drive with P025C?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P025C fail an emissions test?
Yes, it can. P025C is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P025C to fix?
Difficulty: medium. A typical repair takes 1 to 3 hours of work. This is a job for a workshop.
Will P025C clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.