OBD-II code · Powertrain (generic, extended)
P26D2 Engine Coolant Pump Control Module Over Temperature
The smart coolant pump controller has reached over-temperature. Sustained high duty or insufficient cooling air flow.
Is it safe to drive with P26D2?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySustained high duty cycle from cooling demand
- PossibleCooling air channel blocked by debris
Symptoms
- Check engine light on
- Cooling fan runs constantly or not at all
- Cabin heater weak or excessively hot
- Possible long warm-up time or hard cold start
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–3.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Smart Coolant Pump Module
Related codes
- P26CFEngine Coolant Pump Control Module System Voltage
- P26D0Engine Coolant Pump Control Module System Voltage Low
- P26D1Engine Coolant Pump Control Module System Voltage High
- P26D3Engine Coolant Pump Supply Voltage Circuit
- P26D4Engine Coolant Pump Supply Voltage Circuit Low
- P26D5Engine Coolant Pump Supply Voltage Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.