Noise Diagnosis - Corrective Action

^ Use the proper tools for diagnostic and repairs.
^ Follow ESD guidelines. Refer to ESD Notice.

Audio - Preliminary Diagnosis:

^ Use the available noise suppression devices listed in the table below.

IMPORTANT: Electro magnetic Interference (EMI) may cause a fewer number of stations to be received in one of the three modes. Various vehicle components may cause the EMI. This EMI may be the cause of the differences in reception. Inspect for components powered up in the three various key positions. This action may eliminate one or more of the following components:
^ Engine running components
^ Ignition ON components
^ Other components

For example, if the same number of stations are received with the engine running as when the engine OFF, the components active with the engine running are not causing the interference.

Radio Inoperative
1. Verify that G202 is clean and tight.
2. Visually inspect the following fuses:
^ The RADIO ACCESSORY fuse
^ The RADIO BATTERY fuse
3. In order to inspect a speaker, use a C or D cell battery in order to perform the following procedure:
3.1. While momentarily connecting and disconnecting the battery across the circuits to the speaker, perform the following actions:
^ Listen for a slight popping sound.
^ Watch the cone of the speaker in order to ensure that the cone moves in and out.
3.2. Verify that one of the above actions occurs. If either action occurs, the speaker and the circuitry are usually OK.