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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1636 (Cellular Communication System) >> Diagnostic Information and Procedures >> DTC U1500: VCIM Detects An Internal Communication Malfunction >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

This DTC indicates an internal fault and is set within the Vehicle Communication Interface Module (VCIM). No external circuits are involved.

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