Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-2A1D

Condition




Engine Control Module (ECM) checks the signal for fuel 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 fuel 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
- Predefined value for fuel temperature.

Possible source
- Damaged fuel temperature sensor.
- Contact resistance or oxidation in the terminals.

Fault symptom[s]
- Malfunction indicator light (MIL), on