OBD-II code · Powertrain (generic, extended)
P2B63 Coolant Pump B Stuck/Stalled
Coolant pump B reports a stuck/stalled condition. Coolant circulation through the affected loop cannot be commanded reliably.
Is it safe to drive with P2B63?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyPump impeller jammed by debris
- PossibleMotor seized
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 B, Wiring Harness, Ecm
Related codes
- P26F8Coolant Pump C Stuck/Stalled
- P2B6ACoolant Pump D Stuck/Stalled
- P2B9CCoolant Pump A Stuck/Stalled
- P2DF9Coolant Pump E Stuck/Stalled
- P2B60Engine Coolant Flow Control Valve Position Sensor Circuit Range/Performance
- P2B61Engine Coolant Flow Control Valve Stuck Closed
- P2B62Coolant Pump B Supply Voltage Circuit
- P2B64Coolant Pump B Control Module Overtemperature
- P2B65Coolant Pump B Overspeed/Air in System
- P2B66Coolant Pump D Control Circuit/Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.