Gauge Control Module Self-diagnostic Function

Entering the self-diagnostic function (manual method)
Before doing the self-diagnostic function, make sure the No. 5 (7.5 A) fuse in the driver's under-dash fuse/relay box and the No. 15 (10 A) fuse in the under-hood fuse/relay box are OK.
  1. Push and hold the SEL/RESET switch button.
  1. Turn the combination light switch ( ) ON.
  1. Turn the ignition switch to ON (II).
  1. Within 5 sec., turn the combination light switch ( ) OFF, then ON and OFF again.
  1. Within 5 sec., release the SEL/RESET switch button, and then push and release the button three times repeatedly.
NOTE:
  • While in the self-diagnostic mode, the dash lights brightness controller operates normally.
  • While in the self-diagnostic mode, the SEL/RESET button is used to start the Beeper Drive Circuit Test and the Gauge Drive Circuit Check.
  • If the vehicle speed exceeds 2 km/h (1.2 mph) or the ignition switch is turned to LOCK (0), the self-diagnostic mode ends.