Without RPO UQ7: Overview
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 open. Test the appropriate speaker output circuits for an open.
Important: The radio must be programmed after replacement. With RPO UM8 perform the RADIO SETUP .
- No audio output from the radio. 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 radio. Refer to RADIO REPLACEMENT .