OBD-II code · Powertrain (generic, extended)
P2B61 Engine Coolant Flow Control Valve Stuck Closed
The engine coolant flow control valve reports a stuck closed condition. Coolant routing between engine and radiator branches cannot be commanded as expected.
Is it safe to drive with P2B61?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyValve seized in closed position
- PossibleDebris jammed in valve gate
- 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 Flow Control Valve, Wiring Harness, Ecm
Related codes
- P2B5EEngine Coolant Flow Control Valve Position Sensor Circuit Low
- P2B5FEngine Coolant Flow Control Valve Position Sensor Circuit High
- P2B60Engine Coolant Flow Control Valve Position Sensor Circuit Range/Performance
- P2B62Coolant Pump B Supply Voltage Circuit
- P2B63Coolant Pump B Stuck/Stalled
- P2B64Coolant Pump B Control Module Overtemperature
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.