OBD-II code · Powertrain (generic, extended)
P26F6 Coolant Pump C Control Circuit High
Voltage on the third coolant pump control line is above the expected window. Typical causes are a short to battery or an open motor winding.
Is it safe to drive with P26F6?
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 B+
- PossibleOpen 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
- P261DCoolant Pump B Control Circuit High
- P2B68Coolant Pump D Control Circuit High
- P2DF6Coolant Pump E Control Circuit High
- P26F3Starter Relay B Stuck Off
- P26F4Coolant Pump C Control Circuit / Open
- P26F5Coolant Pump C Control Circuit Low
- P26F7Coolant Pump C Supply Voltage Circuit
- P26F8Coolant Pump C Stuck/Stalled
- P26F9Coolant Pump C Control Module Overtemperature
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.