Without Special Tools

Disconnect the vehicle's battery (DM voltage supply). Reset clock after you reconnect battery.

NOTE: The DTC readout "1" (no malfunction in system) does not appear after clearing the Diagnostic Module DTC memory (disconnecting the vehicle's battery). DTC readout "1" only reappears during the vehicle's subsequent trip after the diagnostic module has confirmed that all monitored systems and their respective components are ok (no malfunctions).

NOTE: DTC's which have been stored due to testing or disconnecting of lines must be erased from the DTC memory at the end of testing.