Without Scan Tool

Clearing Diagnostic Trouble Codes
The diagnostic trouble codes can be erased by disconnecting the (-) cable from the battery for 10 seconds
or more and then re-connecting it, or by the following procedure.
1. Turn the ignition switch to ON.
2. With the SET switch at the ON position, turn the main switch to ON, and within 1 second after this, turn the RESUME switch to ON.
3. With the SET switch once more at the ON position, turn the stop light switch ON for a continuous period of 5 seconds or more.