Testing

Whenever a radio malfunction occurs;
1. First check FUSES in Fuse Block:
a. Fuse 1, Illumination
b. Fuse 2, Illumination
c. Fuse 4, Ignition feed
d. Fuse 18, Radio Memory Feed, Hot at all times
2. Verify, the radio wire harness are properly connected before starting normal diagnosis and repair procedures.

Additional information regarding testing of the Audio System can be found at Computers and Control Systems, Body Control Module.