DIAGNOSIS AND TESTING
AUDIO
Any diagnosis of the Audio system should begin with the use of the scan tool. For information on the use of the scan tool, refer to the appropriate Diagnostic Service information.
For complete circuit diagrams, refer to the appropriate wiring information.
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.
| CONDITION |
POSSIBLE CAUSES |
CORRECTION |
| NO AUDIO |
1. Fuse inoperative. |
1. Check radio fuse and Ignition-Off Draw (IOD) fuse in Junction Block (JB). Replace fuses, if required. |
2. Radio connector damaged. |
2. Check for loose or corroded radio connector. Repair, if required. |
|
3. Wiring damaged. |
3. Check for shorted or open wires. Repair wiring, if required. |
|
4. Radio ground damaged. |
4. Check for continuity between radio chassis and a known good ground. There should be continuity. Repair ground, if required. |
|
5. Radio inoperative. |
5. Refer to appropriate Diagnostic Service information. |
|
6. Speakers inoperative. |
6. Replace speaker as necessary. |
|
| NO SATELLITE RADIO AUDIO (PERFORM ALL DIAGNOSIS OUTDOORS) |
1. Subscription service has expired (with subscription expired, one channel is still available) |
1. Contact satellite radio provider. |
2. Items on roof blocking satellite antenna. |
2. Remove or reposition items to allow clear space around antenna. |
|
3. Damaged satellite antenna cable. |
3. Replace satellite antenna cable. |
|
4. Damaged satellite antenna. |
4. Replace satellite antenna. |
|
| NO RADIO DISPLAY |
1. Fuse inoperative. |
1. Check radio fuse and Ignition-Off Draw (IOD) fuse in Junction Block (JB). Replace fuses, if required. |
2. Radio connector damaged. |
2. Check for loose or corroded radio connector. Repair, if required. |
|
3. Wiring damaged. |
3. Check for battery voltage at radio connector. Repair wiring, if required. |
|
4. Radio ground damaged. |
4. Check for continuity between radio chassis and a known good ground. There should be continuity. Repair ground, if required. |
|
5. Radio inoperative. |
5. Refer to appropriate Diagnostic Service information. |
|
| CLOCK WILL NOT KEEP SET TIME |
1. Fuse inoperative. |
1. Check Ignition-Off Draw (IOD) fuse in the Junction Block (JB). Replace fuse, if required. |
2. Radio connector damaged. |
2. Check for loose or corroded radio connector. Repair, if required. |
|
3. Wiring damaged. |
3. Check for battery voltage at radio connector. Repair wiring, if required. |
|
4. Radio ground damaged. |
4. Check for continuity between radio chassis and a known good ground. There should be continuity. Repair ground, if required. |
|
5. Radio inoperative. |
5. Refer to appropriate Diagnostic Service information. |
|
| SOUND DISTORTION (VIBRATION FROM SPEAKER AREA, BUZZING - HUMMING) |
1. Door trim panel loose or missing fasteners. |
1. Inspect door trim panel and correct as necessary. Replace any missing fasteners. |
2. Water shield loose or misaligned. |
2. Inspect water shield and adjust as required. |
|
3. Items placed in door trim panel map pockets vibrating or moving from side to side. |
3. Remove items from door trim panel. Ensure that vibration is no longer present. |
|
| POOR RADIO RECEPTION |
1. Antenna damaged or inoperative. |
1. Diagnose and replace antenna if necessary. |
2. Radio ground damaged. |
2. Check for continuity between radio chassis and a known good ground. There should be continuity. Repair ground, if required. |
|
3. Radio noise suppression inoperative. |
3. Repair or replace ground strap as necessary. |
|
4. Radio inoperative. |
4. Refer to appropriate Diagnostic Service information. |
|
| NO/POOR TAPE OPERATION |
1. Damaged tape. |
1. Insert known good tape and test operation. |
2. Foreign objects behind tape door. |
2. Remove foreign objects and test operation. |
|
3. Dirty cassette tape head. |
3. Clean head with Mopar Cassette Head Cleaner. |
|
4. Inoperative radio. |
4. Exchange or replace radio, if required. |
|
| NO COMPACT DISC OPERATION |
1. Damaged CD. |
1. Insert known good CD and test operation. |
2. Foreign material on CD. |
2. Clean CD and test operation. |
|
3. Condensation on CD or optics. |
3. Allow temperature of vehicle interior to stabilize and test operation. |
|
4. Inoperative radio. |
4. Refer to appropriate Diagnostic Service information. |