P025D
Fuel Pump Module A Control Circuit High
Fuel delivery
Generic OBD-II
High
What it means
P025D means the ECM sees higher-than-expected voltage on the 'A' fuel-pump module control circuit, usually from an open or high-resistance connection. Because this circuit runs the fuel pump, the fault can cut or interrupt fuel delivery — causing hard starting, stalling, or a no-start until the wiring or module is repaired.
High
Can I keep driving? Risky — a fuel-pump control-circuit fault can cause stalling or a no-start, so address it before the car strands you.
Common symptoms
What you'll notice
- Check-engine light on
- Hard starting, or a crank with no-start
- Stalling or rough running from inconsistent fuel delivery
- May fail an emissions test
Common causes
Most likely first
- Open or high-resistance wiring in the fuel-pump module control circuitLikely
- Blown fuel-pump fuse or a corroded connectorCommon
- Faulty fuel-pump (driver) module or relayCommon
- PCM control-circuit driver fault (less common)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and check the fuel-pump fuse and connectors first.
- Inspect the module control wiring for opens, corrosion, or a poor ground.
- Measure control-circuit voltage with the key on and while cranking.
- If the circuit is good, test the fuel-pump driver module/relay; consider the PCM last. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P025D?+
Not reliably. A control-circuit fault can interrupt fuel delivery and cause stalling or a no-start. Fix it promptly.
Can I just clear P025D?+
It returns until the wiring or module fault is repaired. A 'circuit high' code points to a real electrical problem.
Related codes
Often seen with P025D
Read & clear P025D yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX