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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 342 (Cellular Communication System) >> Diagnostic Information and Procedures >> DTC U1500: Internal Communication Malfunction >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. 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.