Without Scan Tool

1. Turn the ignition switch to "ON" position while holding the auto-cruise control switch in the "SET" position (down). Then, within one second, more the cruise control switch up to the "RES" position.
2. Read a diagnostic trouble code by observing the flash display pattern of the auto-cruise control indicator light in the combination meter.

Diagnostic Result Display Method When Using The Auto-Cruise Control Indicator Light: