Powertrain, generic · Fuel and air metering, auxiliary emission controls

P00DF Charge Air Cooler Coolant Temperature Sensor A Circuit Range/Performance

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

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.

Likely causes

Wiring harness chafed or fuse blown (documented by manufacturer bulletins)
Sensor faulty
Connector corroded or water ingress
Low coolant, air in the low-temperature circuit or pump faulty

Symptoms

  • Check engine light on
  • Reduced power possible
  • Often no noticeable symptoms

Repair estimate

DifficultyMediumDIY possible
Parts and labour€100–300
Time0.5–1.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

charge air cooler coolant temperature sensorcharge air cooler coolant pumplow temperature coolant circuitsensor wiring

Related codes

P00DEP00E0P00E1P00E2P026AP007B

References: law.cornell.edu, static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.