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

P007C Charge Air Cooler Temperature Sensor Circuit Low Bank 1

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

The charge air cooler temperature sensor (an NTC thermistor) measures the temperature of the compressed charge air at the charge air cooler, depending on the manufacturer upstream or downstream of it, and is often combined with the boost pressure sensor. The engine control module uses it for the air mass calculation, boost control, component protection and to monitor cooler efficiency. P007C: A low signal means low sensor resistance, typically a short to ground; with an NTC sensor the control module then reads an extremely high temperature. Depending on the input circuit of the control module, an open circuit can occasionally also appear as low.

Likely causes

Signal wire shorted to ground
Sensor shorted internally
Oil or moisture in the connector
Engine control module faulty

Symptoms

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

Repair estimate

DifficultyEasyDIY possible
Parts and labour€80–250
Time0.3–1 h

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

Parts involved

charge air cooler temperature sensorcharge air cooler temperature sensor wiringboost pressure sensor

Related codes

P007AP007BP007DP007E

References: law.cornell.edu, newtonnet.co.uk, gsi.ext.gm.com, gsi.ext.gm.com.