Diagnosis and Testing

Internal diagnostic examination of the radio chassis should be left to the authorized radio service center. However, the automotive technician should be able to analyze and isolate radio reception conditions to the proper area or component causing the condition. All radio conditions can be isolated to one of five general areas. The trouble will be found in the antenna system, radio chassis (receiver), radio speaker system, radio noise suppression equipment, or premium sound system.

The diagnosis charts and tests should be used with the Wiring Diagram Book and an appropriate Radio Tester to accurately diagnose and quickly service most radio system concerns.

Refer to the wiring diagrams and the diagnosis Charts to isolate radio concerns.