Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition
Diagnostic trouble code (DTC) ECM-3100 is stored if the signal from the engine speed (RPM) sensor is missing or if it gives an engine speed (RPM) signal which is too low in relation to the signal from the camshaft position (CMP) sensor and the control module interprets it as a fault.

Substitute value
The control module uses the signal from the camshaft position (CMP) sensor if the camshaft position (CMP) sensor has been adapted.

Possible source
- open-circuit in the signal cable or ground lead
- short-circuit to supply voltage or ground in the signal cable
- contact resistance in the terminals
- faulty engine speed (RPM) sensor
- damaged carrier plate.

Fault symptom[s]
- the engine does not start
- the engine cuts out.