P241EReductant Heater Coolant 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
- Many SCR systems thaw frozen DEF with engine coolant routed through the tank or supply module; an electrically switched valve lets coolant in. P241E means that valve stays shut although the controller has opened it, so the expected warm-up does not appear. Deutz assigns P241E-00 in its EMR L1 list to the heating valve of the DEF pump and finds it through the defrost check; a closed tank heating valve gets its own code there (P1283). Unlike the circuit codes P20B1 to P20B4, wiring may be intact here; the valve or its coolant path is blocked. Hino bulletin TT-16-014 shows how a cutoff valve can be function-tested. In frost the SCR stays unavailable, NOx rises and an inducement can follow.
- What you may notice
- SCR or DEF warning in cold weather, DEF does not thaw
- Higher NOx, possibly further SCR codes
- Countdown to restart or power limitation if left unrepaired
- Likely causes
- LikelyValve seized or diaphragm stuck in the closed position
- PossibleKinked, blocked or air-locked coolant hoses to the DEF heater
- RareLow coolant level or weak circulation
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €150 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.