Without RPO UZ6 (ION) or RPO WBM (VUE)
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
No audio output from the radio-Test for any AC voltage between the left front audio signal circuits at the left front speaker connector with the radio volume adjusted to 50 percent. If no AC voltage is present, check for shorts to battery positive or shorts to ground on any speaker output circuit from the radio. Refer to Circuit Testing and Wiring Repairs . If no shorts are located, replace the radio. Refer to Radio Replacement .
With RPO UZ6 (ION) or RPO WBM (VUE)
- Battery positive voltage to the amplifier open-Test the battery positive circuit to the amplifier for an open. Refer to Circuit Testing and Wiring Repairs .
- Ground to the amplifier open-Test the ground circuit to the amplifier for an open. Refer to Circuit Testing and Wiring Repairs .
- No low level audio output from the radio-Test for any AC voltage between the left front low level audio signal circuits at the amplifier connector with the radio volume adjusted to 50 percent. If no AC voltage is present, check for shorts to battery positive or shorts to ground on any speaker output circuit from the radio. Refer to Circuit Testing and Wiring Repairs . If no shorts are located, replace the radio. Refer to Radio Replacement .
- No radio on signal to the amplifier-Test the radio on signal circuit to the amplifier for an open. Refer to Circuit Testing and Wiring Repairs .
- Defective amplifier-Replace the amplifier. Refer to Amplifier Replacement .