Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CPM-3141

Condition




The diagnostic trouble code (DTC) is stored if the control module registers that the signal on the cable from the engine coolant temperature (ECT) sensor is too low.
The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

Substitute value
- None.

Possible source
- Short-circuit to supply voltage in the cable between the combustion preheater module (CPM) and the engine coolant temperature (ECT) sensor
- Open-circuit in the cable between the combustion preheater module (CPM) and the engine coolant temperature (ECT) sensor
- Damaged engine coolant temperature (ECT) sensor.

Fault symptom[s]
- Poor heating in the passenger compartment
- The parking heater does not operate.