OBD-II code · Powertrain (generic, extended)
P26F5 Coolant Pump C Control Circuit Low
Voltage on the third coolant pump control line is below the expected window. Usually a short to ground or a shorted motor winding.
Is it safe to drive with P26F5?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyControl wire shorted to ground
- PossibleInternal short in pump motor winding
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.8–3.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Coolant Pump C, Wiring Harness
Related codes
- P261CCoolant Pump B Control Circuit Low
- P2B67Coolant Pump D Control Circuit Low
- P2DF5Coolant Pump E Control Circuit Low
- P26F2Starter Relay B Stuck On
- P26F3Starter Relay B Stuck Off
- P26F4Coolant Pump C Control Circuit / Open
- P26F6Coolant Pump C Control Circuit High
- P26F7Coolant Pump C Supply Voltage Circuit
- P26F8Coolant Pump C Stuck/Stalled
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.