P00DFCharge Air Cooler Coolant Temperature Sensor A Circuit Range/Performance
- 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
- With indirect charge air cooling, a water-to-air charge air cooler cools the charge air; it sits in a separate low-temperature coolant circuit with an electric pump and its own radiator. The charge air cooler coolant temperature sensor A measures the coolant temperature of this circuit. The control module uses it to control the pump and to monitor cooling performance. Documented users are diesel engines from Ford and GM. P00DF: This is a plausibility fault: the reading is electrically valid but does not fit the operating state; low coolant, air in the circuit or a weak pump can also make the sensor read real but unexpected values.
- What you may notice
- Check engine light on
- Reduced power possible
- Often no noticeable symptoms
- Likely causes
- LikelyWiring harness chafed or fuse blown (documented by manufacturer bulletins)
- LikelySensor faulty
- PossibleConnector corroded or water ingress
- PossibleLow coolant, air in the low-temperature circuit or pump faulty
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €100 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.