Remote Switches
WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Any diagnosis of the Audio system should begin with the use of a scan tool and AUDIO/VIDEO SYSTEMS - ELECTRICAL DIAGNOSTICS .
Refer to SYSTEM WIRING DIAGRAMS .
WARNING:
DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, SEAT BELT TENSIONER, SIDE AIRBAG, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
- Remove the remote radio switch(es) (1) and (2) from the steering wheel (Refer to ELECTRICAL/AUDIO/REMOTE SWITCHES - REMOVAL) .
- Use an ohmmeter to check the switch resistances as shown in the Remote Radio Switch test table. If the remote radio switch resistances are not as indicated, replace the inoperative switch.
REMOTE RADIO SWITCH TEST
| SWITCH | SWITCH POSITION | RESISTANCE |
|---|---|---|
| Right or Left | Neutral | 24K Ohms +/- 5% |
| Right (White) | Volume Up | 6.8K Ohms +/- 5% |
| Right (White) | Volume Down | 15.6K Ohms +/- 1% |
| Right (White) | Mode | 0 Ohms |
| Left (Black) | Seek Up | 1.2K Ohms +/- 5% |
| Left (Black) | Seek Down | 3.3K Ohms +/- 5% |
| Left (Black) | Pre-Set Station Advance | .47K Ohms +/- 5% |