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Equinox L
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Repair and Diagnosis (Single Page)
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Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures
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Diagnostic Information And Procedures
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OnStar Microphone Malfunction (IOR/IOU/IOT/IOS)
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Action Taken When the DTC Sets
Action Taken When the DTC Sets
The telematics status LED turns red.
The telematics communication interface control module will not receive a signal from the cellular phone microphone.
Calls can be placed but the caller cannot be heard.