Electronic Vehicle Information Center Test

NOTE: If the compass functions, but accuracy is suspected, it may be necessary to perform a variation adjustment. This procedure allows the compass unit to accommodate variations in the earth's magnetic field strength, based on geographic location. See COMPASS VARIATION ADJUSTMENT under ON-VEHICLE SERVICE.

NOTE: If the compass reading displays a blank and only "CAL" appears in the display, demagnetizing may be necessary to remove excessive residual magnetic fields from the vehicle. See COMPASS DEMAGNETIZING under ON-VEHICLE SERVICE.

With the ignition switch in the OFF position, simultaneously depress and hold the C/T button and the RESET button.
Turn the ignition switch to the ON position.
Continue to hold both buttons depressed until the EVIC software version information is displayed, then release both buttons.
Following completion of these tests, the EVIC module will display one of the following messages:
- PASS SELF TEST
  
  Momentarily depress and release the RESET button to return to the compass/temperature/trip computer display mode. The EVIC module is working properly.
- FAILED SELF TEST
  
  The EVIC module has an internal failure. The EVIC module is faulty and must be replaced.
- NOT RECEIVING J1850 MESSAGE
  
  The EVIC module is not receiving proper message input through the PCI data bus. The use of a scan tool is required.