Operation CHARM: Car repair manuals for everyone.

Without Scan Tool


Be sure to verify proper system operation and absence of DTCs when the clearing procedure is completed.

The EBCM will not permit DTC clearing until all DTCs have been displayed. Also, DTCs cannot be cleared by unplugging the EBCM, disconnecting the battery cables, or turning the ignition "OFF" (except on an ignition cycle default).

Ignition Cycle Default

If no diagnostic trouble code occurs for 100 drive cycles (a drive cycle occurs when the ignition is turned "ON" and the vehicle is driven faster than 16 km/h (10 mph)), any existing DTC's are cleared from the EBCM memory.