Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




Diagnostic trouble code (DTC) ECM-5C is stored if the canister purge (CP) valve signal cable is short-circuited to ground or voltage or if there is an open-circuit in the circuit.

Substitute value
- No leak diagnostic
- No idle air trim adaptation
- No long-term fuel trim.

Possible source

Signal too high:
- Short-circuit to supply voltage in the signal cable
- Defective canister purge (CP) valve.

Signal too low:
- Short-circuit to ground in the signal cable.

Signal missing:
- Open-circuit in the signal cable
- Contact resistance and oxidation.

Fault symptom[s]
- Malfunction indicator lamp (MIL) lit
- High idling speed
- Low idling speed.