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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 947 (Cellular Communication System) >> Diagnostic Information and Procedures >> DTC U1500: Communication State of Health >> Circuit Description

Circuit Description

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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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