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Mute Switch Failure

Tests 1 - 3:




Tests 4 - 7:




SYMPTOM
MUTE SWITCH FAILURE

WHEN MONITORED
Monitored any time the ignition is ON.

SET CONDITION
The BCM has sensed a shorted mute switch for 20 seconds. Note: This is a stored code and will not clear itself until after 20 key cycles.

POSSIBLE CAUSES
- Left remote radio switch
- Right remote radio switch
- Radio control ground circuit open
- Radio control MUX circuit open
- Radio control MUX circuit short to voltage
- Radio control MUX circuit short to ground
- BCM-radio control