Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-275D

Condition




Engine Control Module (ECM) checks the signal for engine temperature at start. This is done by the control module saving the values from inlet, fuel and engine temperature sensors at the moment of start. Then the control module compares the values. If the signal from the engine temperature sensor matches a temperature that is below a certain limit in relation to the other, the control module interprets this as a malfunction and the diagnostic trouble code (DTC) is generated.
The diagnostic trouble code (DTC) can be diagnosed after approx. 10 minutes with the engine running.

Substitute value
- The engine coolant temperature (ECT) is calculated based on a model.

Possible source
- Damaged engine coolant temperature (ECT) sensor.
- Contact resistance or oxidation in the terminals.

Fault symptom[s]
- Malfunction indicator light (MIL), on
- Engine is difficult to start