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Circuit/System Description When an OnStar® keypress is made, a serial data message is sent to the audio system to mute all Reference Information Schematic Reference OnStar Schematics Connector End View Reference Component Connector End Views Description and Operation OnStar Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References for scan tool information Circuit/System Testing 1. Ignition OFF, disconnect the X2 harness connector at the CIM. Low Reference
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Cellular, Entertainment, and Navigation - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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