Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-431B

Condition




The engine control module (ECM) checks the control signal to the heater element in the leak diagnostic unit.
The diagnostic trouble code (DTC) is stored if the engine control module (ECM) detects that the signal is missing.
The diagnostic trouble code (DTC) can be diagnosed when the engine is running.

Substitute value
None.

Possible source
- Open-circuit in the signal cable
- Damaged leak diagnostic pump.

Fault symptom[s]
- None.