Coolant Pump A Control Circuit Performance/Stuck Off
What it means
P2601 means the powertrain computer commands the electric coolant pump but its control circuit is underperforming or stuck off, so coolant may not circulate as designed. On engines that lean on this pump for cooling — often turbocharged or hybrid systems — that can let temperatures climb, so it's worth addressing before the engine overheats.
Can I keep driving? Often okay for short trips, but watch the temperature gauge — if the electric coolant pump can't run, the engine or the components it cools can overheat.
Real-world scan data
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Check-engine light on
- Engine temperature higher than normal, especially at idle or in traffic
- Overheating warning during hard or extended driving
- Electric coolant pump silent when it should be running
Common causes
Most likely first
- Failed electric coolant pump (seized or stuck off)Likely
- Open, shorted, or corroded wiring or connector in the pump control circuitCommon
- Blown fuse or faulty relay feeding the pumpCommon
- Poor ground or power supply to the pumpLess often
- Faulty PCM or coolant-pump control module (least likely)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame and check for related coolant-pump codes (P2600, P2602, P2603).
- Inspect the pump connector and wiring for damage, corrosion, or loose pins.
- Check the pump fuse and relay; confirm it has power and ground with the key on.
- Command the pump with a scan tool if supported; if it won't run with good power and ground, replace the pump.
- Only after wiring and pump are verified good, suspect the control module.
FAQ
Quick answers
Is it safe to drive with P2601?+
Can I just clear P2601?+
Related codes
Read & clear P2601 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.