Electronic Vehicle Information Center And Navigation Controls
Refer to SYSTEM WIRING DIAGRAMS for connector views and pin-outs. Check fuses first that supply power to the switch pod (IOD fuse). If OK, continue. If not OK, repair as necessary to continue.
Remove the instrument panel switch pod for testing. First of all check for 12v battery power at terminal 1 of the instrument panel harness connector. Then check for ground at terminal 12 of the instrument panel harness connector. If OK, continue. If not OK, repair wire as necessary to continue.
Each EVIC button press and the open Circuit State will provide a unique resistance, with respect to the EVIC/NAV Button Analog Common circuit. Refer to the INSTRUMENT PANEL SWITCH POD RESISTANCE table.
The unique EVIC/NAV button press resistances are: