Charge air temperature sensor
Check that coolant and charge air are approximately the same temperature when the engine is cold.Check the charge air temperature sensor, coolant temperature sensor, charge air pressure sensor, fuel supply pressure sensor and fan speed sensor, along with the connectors and electrical cables in the circuit.Proceed as follows to verify that the fault has been rectified:Start the engine and run it at idling speed for at least 15 seconds.If the fault has been rectified, the fault code becomes inactive. Clear the fault code.Switch the power off and on with the starter key three times in succession at 10 second intervals to extinguish the warning lamp.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
The voltage in the circuit has been below the permitted level.
Possible causes: Short circuit in charge air temperature sensor circuit.Fault in the circuit of the charge air pressure sensor, coolant temperature sensor, fuel supply pressure sensor or fan speed sensor.