OBD-II code · Powertrain (generic, extended)
P26CA Engine Coolant Pump Control Circuit / Open
The controller cannot drive the main electric coolant pump. Without flow the engine and aftertreatment will overheat under load.
Is it safe to drive with P26CA?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen pump motor winding
- PossibleBroken control wire to the pump
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Engine Coolant Pump, Pump Relay, Wiring Harness
Related codes
- P26C7Exhaust Flow Control Valve A Control Circuit High
- P26C8Chassis Control Module 1 Requested MIL Illumination
- P26C9Chassis Control Module 2 Requested MIL Illumination
- P26CBEngine Coolant Pump Performance/Stuck Off
- P26CCEngine Coolant Pump Control Circuit Low
- P26CDEngine Coolant Pump Control Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.