Circuit/System Verification

WARNING: This page is about a different car, the 2013 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON.
Verify all the associated primary controls on the radio (Volume, Mute, Seek, etc.) operate properly.
- If any of the primary controls do not function properly
  Refer to Symptoms - Entertainment
- If all of the primary controls function properly
Verify all functions on the S70R Steering Wheel Controls Switch - Right operate properly.
- If some, but not all, functions on the S70R Steering Wheel Controls Switch - Right do not operate
  Test or replace the S70R Steering Wheel Controls Switch - Right
- If all functions on the S70R Steering Wheel Controls Switch - Right do not operate
  Refer to All Controls Malfunction in Circuit/System Testing .
- If all functions on the S70R Steering Wheel Controls Switch - Right operate properly
Verify the voice and mute functions of the S70L Steering Wheel Controls Switch - Left operate properly.
- If either the voice or mute function does not operate from the S70L Steering Wheel Controls Switch - Left
  Refer to Left Controls Malfunction in Circuit/System Testing .
- If both the voice and mute functions of the S70L Steering Wheel Controls Switch - Left operate properly
All OK.