FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Diagnostic Trouble Code (DTC) Information






Diagnostic trouble code (DTC) information ECM-820C

Condition




The engine control module (ECM) checks the power supply from the system relay.
The diagnostic trouble code (DTC) is stored if the engine control module (ECM) detects that the voltage from the system relay is higher than a certain value.
The diagnostic trouble code (DTC) can be diagnosed at ignition on or when the engine is running.

Substitute value
- None.

Possible source
- Defective charging system.

Fault symptom[s]
- Starting/Engine does not start/Unsure when/at all times