All Speakers Inoperative
WARNING: This page is about a different car, the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
- Low level audio output of the radio shorted - Test all radio low level audio outputs for a short. Refer to CIRCUIT TESTING and to WIRING REPAIRS .
- Remote radio control supply voltage circuit is open or shorted - Test the remote radio control supply voltage circuit of the radio for an open or a short. Refer to CIRCUIT TESTING and to WIRING REPAIRS .
- Rear seat audio enable signal circuit is shorted - Test the rear seat audio enable signal circuit of the radio for a short. Refer to CIRCUIT TESTING and to WIRING REPAIRS .
- Radio on signal circuit is open or shorted - Test the radio on signal circuit of the radio for an open or a short. Refer to CIRCUIT TESTING and to WIRING REPAIRS .
- Amplifier control circuit is open or a shorted - Test the amplifier control circuit of the switch amplifier power relay for an open or a short. Refer to CIRCUIT TESTING
and to WIRING REPAIRS
.
If the amplifier control circuit test result is acceptable, test the following circuits for an open, and refer to CIRCUIT TESTING and to WIRING REPAIRS :
- Accessory voltage circuit of the switch amplifier power relay.
- Ground circuit of the switch amplifier power relay
- Amplifier supply voltage circuit of the Bose amplifiers
- Battery positive voltage circuit of the Bose amplifiers
- Ground circuit of the Bose amplifiers
If the ground circuit test result is acceptable, replace the switch amplifier power relay.