P2B61Engine Coolant Flow Control Valve Stuck Closed
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2B61 indicates that the coolant flow control valve stays closed although the engine computer asks it to open, so coolant cannot reach the radiator path as intended. Jaguar Land Rover uses it on the 2.0-litre Ingenium petrol four (2019–2020): in bulletin JLRTB02030NAS1, P2B61-73 appears with P26CB-72 when the movable shroud that diverts coolant in the electrically controlled pump stays put, and the PCM runs the fans at full speed to prevent overheating; a new pump and PCM software are the fix. FCA lists P2B61-00 for the Alfa Romeo Giulia and Stelvio 2.0 turbo (21-045-19, 21-035-20). Mazda uses the code on SKYACTIV-G engines but labels it a range/performance fault of its coolant control valve circuit.
- What you may notice
- Radiator fans running constantly at high speed, loud noise from the engine bay
- Rising engine temperature under load
- Check engine light on
- Likely causes
- LikelyValve or diversion shroud mechanically stuck closed (JLR variable coolant pump)
- PossibleEngine control software that needs an update
- RareValve drive or its wiring no longer moves the valve
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.