OBD-II code · Powertrain (generic, extended)
P2B6B Coolant Pump D Control Module Overtemperature
Coolant pump D reports a control module overtemperature condition. Coolant circulation through the affected loop cannot be commanded reliably.
Is it safe to drive with P2B6B?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyAmbient or under-bonnet temperature too high
- PossibleModule cooling path blocked
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
- P26F9Coolant Pump C Control Module Overtemperature
- P2B64Coolant Pump B Control Module Overtemperature
- P2B9ECoolant Pump A Control Module Overtemperature
- P2DFBCoolant Pump E Control Module Overtemperature
- P2B68Coolant Pump D Control Circuit High
- P2B69Coolant Pump D Supply Voltage Circuit
- P2B6ACoolant Pump D Stuck/Stalled
- P2B6CCoolant Pump D Overspeed/Air in System
- P2B6DEngine Coolant Flow Control Valve Position Sensor Circuit Intermittent/Erratic
- P2B6ETurbocharger/Supercharger A Temperature Sensor Circuit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.