Entering Diagnostic Mode - Testing
Turn ignition switch to "ON" position. Press "OFF" and "WARMER" buttons on climate control panel simultaneously, and hold until segment check is displayed on the instrument panel and the Climate Control/Driver Information Center (CCDIC). See Fig 2 .
NOTE:
Operating vehicle in the diagnostic mode for extended time periods (1/2 hour or longer), without the engine running, will cause battery drain, and possibly relate false diagnostic information and/or a no-start condition.