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GMC Workshop Manuals | |
Sierra Classic 3500 4WD V8-8.1L (2007)Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Service and Repair![]() Central Control Module: Service and Repair Communication Interface Module Replacement Removal Procedure Important: The vehicle communication interface module (VCIM) has a specific set of unique numbers that tie the module to each vehicle. 1. Remove the instrument panel (I/P) upper trim panel. 5. Remove the screws (1, 3) from the passenger side upper I/P support (2). Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Central Control Module > Component Information > Service and Repair | ||
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