P0E7DCoolant Bypass Valve B Control Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P0E7D is stored when the line driving valve B sits above its expected level, for instance with the wire chafed against a powered line or a driver that cannot pull the circuit down. Stellantis names this code in the same software bulletins as its low sibling: 18-071-26 for the 2025 RAM pickup with Hurricane power, plus 18-082-26 (SO engine) and 18-083-26 (HO engine) for the 2025 Wagoneer and Grand Wagoneer. All of them require a lit check engine light, and the fix is a reflash of the engine control module, sometimes alongside oxygen sensor and airflow codes. Before replacing hardware it is therefore worth checking for such an update. CARB expects outputs like this to be checked for circuit faults. The low case is P0E7C, an open circuit P0E7B, a networked actuator that stops talking U063C.
- What you may notice
- Check engine light
- Other stored codes after the same software issue
- Likely causes
- LikelyOutdated engine control software (Stellantis bulletins 18-071-26, 18-082-26, 18-083-26)
- PossibleValve B control wire shorted to a voltage source
- RareOpen circuit pulled high by the module input
- 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: €0 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.