OBD-II code · Powertrain (generic, extended)
P2B6C Coolant Pump D Overspeed/Air in System
Coolant pump D reports a overspeed/air in system condition. Coolant circulation through the affected loop cannot be commanded reliably.
Is it safe to drive with P2B6C?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyAir pocket in coolant loop
- PossibleCoolant level low
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Coolant Pump D, Wiring Harness, Ecm
Related codes
- P26FACoolant Pump C Overspeed/Air in System
- P2B65Coolant Pump B Overspeed/Air in System
- P2B86Coolant Pump A Overspeed/Air in System
- P2DF7Coolant Pump E Overspeed/Air in System
- P2B69Coolant Pump D Supply Voltage Circuit
- P2B6ACoolant Pump D Stuck/Stalled
- P2B6BCoolant Pump D Control Module Overtemperature
- P2B6DEngine Coolant Flow Control Valve Position Sensor Circuit Intermittent/Erratic
- P2B6ETurbocharger/Supercharger A Temperature Sensor Circuit
- P2B6FTurbocharger/Supercharger A Temperature Sensor Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.