DTC Status

Diagnostic trouble code (DTC) status ECM-9540 5 volt power supply. Signal too high
Reading off Diagnostic trouble code (DTC) status ECM-9540







NOTE: When reading off the Diagnostic trouble code (DTC) status, other stored diagnostic trouble codes (DTCs) and their status will be listed.

- Read off the Diagnostic trouble code (DTC) status. Check the status of the relevant Diagnostic Trouble Code (DTC).

Was the status of the relevant Diagnostic Trouble Code (DTC) displayed as permanent?

YES: Continue with Test.
NO: Refer to "Checking Component and Wiring - II". Checking Component and Wiring - II