OBD-II code · Powertrain (generic, extended)
P2B9E Coolant Pump A Control Module Overtemperature
Coolant pump A reports a control module overtemperature condition. Coolant circulation through the affected loop cannot be commanded reliably.
Is it safe to drive with P2B9E?
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 A, Wiring Harness, Ecm
Related codes
- P26F9Coolant Pump C Control Module Overtemperature
- P2B64Coolant Pump B Control Module Overtemperature
- P2B6BCoolant Pump D Control Module Overtemperature
- P2DFBCoolant Pump E Control Module Overtemperature
- P2B9BVehicle Conditions Incorrect for Particulate Matter Sensor Regeneration
- P2B9CCoolant Pump A Stuck/Stalled
- P2B9DCoolant Pump A Supply Voltage Circuit
- P2B9FCoolant Pump B Underspeed
- P2BA0Coolant Pump C Underspeed
- P2BA1Coolant Pump D Underspeed
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.