Electronic Vehicle Information Center And Navigation Controls
Refer to INSTRUMENT CLUSTER 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 INSTRUMENT PANEL SWITCH POD RESISTANCE .
The unique EVIC/NAV button press resistances are:
| BUTTON | RESISTANCE |
|---|---|
| EVIC CONTROLS | |
| OPEN CIRCUIT | 10210 Ω +/- 8 % |
| US/M | 4010 Ω +/- 8 % |
| STEP | 2010 Ω +/- 8 % |
| . | |
| MENU | 1010 Ω +/- 8 % |
| RESET | 390 Ω +/- 8 % |
| NAVIGATION CONTROLS | |
| OPEN CIRCUIT | 16130 Ω +/- 8 % |
| UP CURSOR | 7030 Ω +/- 8 % |
| DOWN CURSOR | 4030 Ω +/- 8 % |
| LEFT CURSOR | 2530 Ω +/- 8 % |
| RIGHT CURSOR | 1620 Ω +/- 8 % |
| ENTER | 1000 Ω +/- 8 % |
| NAV | 570 Ω +/- 8 % |
| CANCEL | 240 Ω +/- 8 % |
If any of the resistances are not within the specifications, the entire switch pod needs to be replaced (Refer to ELECTRICAL/INSTRUMENT CLUSTER/INSTRUMENT PANEL SWITCH POD - REMOVAL) .