OBD-II code · Powertrain (generic, extended)
P26CF Engine Coolant Pump Control Module System Voltage
The integrated controller of the smart coolant pump reports a system voltage out of operating range.
Is it safe to drive with P26CF?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- PossibleWeak battery sags voltage under pump load
- PossibleAlternator output out of regulation
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.8–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Smart Coolant Pump Module, Charging System
Related codes
- P26CCEngine Coolant Pump Control Circuit Low
- P26CDEngine Coolant Pump Control Circuit High
- P26CEEngine Coolant Pump Overspeed/Air In System
- P26D0Engine Coolant Pump Control Module System Voltage Low
- P26D1Engine Coolant Pump Control Module System Voltage High
- P26D2Engine Coolant Pump Control Module Over Temperature
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.