With RPO UQ7
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Speaker output circuit from amplifier open. Test the appropriate speaker output circuits for an open.
Important: With RPO Y91, Bose amplifier, perform the setup procedure for the amplifier. Refer to AUDIO AMPLIFIER SETUP .
- No audio output from the amplifier. Test for any AC voltage between the appropriate speaker output circuits at the speaker harness connector, disconnected with the radio volume adjusted to 50 percent. If AC voltage is present, replace the speaker. Refer to SPEAKER REPLACEMENT REFERENCE . If no AC voltage is present, 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 .
- Speaker output circuit from amplifier shorted. Test the appropriate speaker output circuits for a short to ground or short to voltage.
- Replace the amplifier. Refer to AMPLIFIER REPLACEMENT .