Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-841B

Condition
Engine control module (ECM) checks the voltage feed at start. If the Engine control module (ECM) detects that the voltage feed is lower than a certain value, during a certain time, the control module interprets this as a malfunction and the diagnostic trouble code is generated.
The diagnostic trouble code (DTC) can be diagnosed when starting the engine.

Substitute value
- None.

Possible source
- Battery voltage too low.
- Contact resistance or oxidation in the terminals.

Fault symptom[s]
- Engine fails to start