Without Scan Tool

Harness Connector Faces:

To clear error codes, connect one end of a jumper to pin A of the [1][2]ALDL connector. With the opposite end of the jumper, alternately plug into and remove from pin C. Do this three times. Hold each connection for 1 second, and pause 1 second between connections.

Important

^ Once the [1][2]ALDL circuit has cleared codes, it will turn off the "Service CCR" telltale lamp for 1 second, and then turn on the telltale lamp for 2 seconds. If the "Service CCR" telltale lamp does not go out, then error codes have not been cleared successfully. Repeat the clearing sequence.