Remote Switches

WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, REFER TO SERVICE INFORMATION BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

Any diagnosis of the Audio system should begin with the use of the Scan Tool tool. For information on the use of the Scan Tool, refer to the appropriate Diagnostic Service Information.

Refer to the appropriate SYSTEM WIRING DIAGRAMS information.

Fig 1: Identifying Remote Radio Switches

Courtesy of CHRYSLER LLC

Disconnect and isolate the battery negative cable.
Remove the remote radio switch(es) from the steering wheel . See Electrical/Audio and Video/SWITCH, Remote Radio - Removal .

Use an ohmmeter to check the switch resistance as shown in REMOTE RADIO SWITCH TEST .

REMOTE RADIO SWITCH TEST

Switch	Switch Position	Minimum Resistance	Nominal Resistance	Maximum Resistance
Right (White)	Volume Up	6.732 ohms	6.8 ohms	6.868 ohms
Right (White)	Volume Down	14.850 ohms	15 ohms	15.151 ohms
Right (White)	Mode Advance	0 ohms	0 ohms	0 ohms
Left (Black)	Seek Up	1.188 ohms	1.2 ohms	1.212 ohms
Left (Black)	Seek Down	3.267 ohms	3.3 ohms	3.333 ohms
Left (Black)	Pre-Set Station Advance	465 ohms	47 ohms	474 ohms

If the switch resistance checks OK, go to 5. If not OK, replace the faulty switch.
Check for continuity between the ground circuit cavity of the switch wire harness connector and a good ground. There should be continuity. If OK, go to 6. If not OK, repair the open circuit as required.
Unplug the 24-way white wire harness connector from the Body Control Module (BCM). Check for continuity between the radio control circuit cavity of the remote radio switch wire harness connector and a good ground. There should be no continuity. If OK, go to 7. If not OK, repair the short circuit as required.
Check for continuity between the radio control circuit cavities of the remote radio switch wire harness connector and the BCM wire harness connector. There should be continuity. If OK, refer to the proper Diagnostic article to test the BCM and the PCI data bus. If not OK, repair the open circuit as required.