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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 671 (Instrument Panel, Gauges & Console) >> Diagnostic Information & Procedures >> DTC B1023: Switch Signal Circuit Is Low >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The DIC monitors the DIC internal switch signal circuits in order to perform various functions. The DIC detects a signal activation when the signal circuit is low.

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