Speakers - One Channel Inoperative
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
The following information lists the most probable cause of the concern to the least probable cause. If the list leads to the replacement of a component, always inspect for a poor connection before proceeding with replacement. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems.
With RPO UQ7
- Speaker output circuit from amplifier shorted. Test the appropriate speaker output circuits for a short to ground or short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
- Replace the amplifier. Refer to Amplifier Replacement .
IMPORTANT:
With RPO Y91, Bose amplifier, perform the setup procedure for the amplifier. Refer to Audio Amplifier Setup .
IMPORTANT:
The follwing procedure assumes all speakers are operative for all modes of operation except digital radio.
With RPO U2K
- Audio signal circuit open. Test the appropriate audio signal for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
- No audio output from the digital radio receiver. Replace the digital radio receiver. Refer to Receiver Replacement - Digital Radio and Digital Radio Receiver Setup
- No digital output from the radio. Replace the radio. Refer to Radio Replacement