OBD-II code · Powertrain (generic, extended)
P26CB Engine Coolant Pump Performance/Stuck Off
The main electric coolant pump is commanded on but does not run.
Is it safe to drive with P26CB?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPump motor seized by sediment
- PossibleCracked rotor magnet decouples drive
- Less likelyCarbon or debris buildup preventing free movement
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 Motor
Related codes
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.