Powertrain
generic / SAE
P025D
Fuel Pump Module A Control Circuit High
Fuel pump module A control voltage above expected range. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number2 / 5D
Possible causes
- Wiring shorted to battery high
- Connector pins corroded - high contact resistance low
- Supply wire pinched against B+ source low
Symptoms
- Check engine light on
- Hard start, no start, or stalling under load
- Power loss especially at high load or rpm
- Possible long cranking time
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 100–800 €
- Estimated time: 0.5–4 h
- Component: fuel pump module a
- Component: module wiring
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012