Diagnostic Overview - Video System

Audio - Preliminary Diagnosis:

IMPORTANT: Electromagnetic Interference (EMI) can cause a fewer number of stations to be received in one of the three modes. The EMI can be caused by various vehicle components. This may be the cause of the differences in reception. Check for components powered up in the three various key positions. This may eliminate engine running components, ignition on components, etc. For example, if the same number of stations are received with the engine running as when the engine was off, the components active with the engine running are not causing the interference. Perform the following:
^ Determine type of audio complaint.
^ Try to duplicate condition (listen to AM or FM, start vehicle, put in a good CD or cassette, test switches, etc.)

1. Verify customer complaint.
2. Follow radio service procedures.
3. If technical assistance is required, have all the pertinent information available before placing the call.