Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-432B

Condition




The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers that there is no signal from the valve in the pump for the leak diagnostic when the valve is activated.
The diagnostic trouble code (DTC) can be diagnosed when the engine has been switched off for 8 hours and is then run for 20 minutes.

Substitute value
The leak diagnostic is disabled.

Possible source
- Contact resistance in the terminals
- Open-circuit in the signal cable
- Open-circuit in the power cable
- Damaged valve in the leak diagnostic unit.

Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.