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Home >> GMC >> 2002 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel, Gauges & Console >> Diagnostic Information & Procedures >> DTC B1023: Switch Signal Circuit Is Low >> Conditions for Setting the DTC

Conditions for Setting the DTC

The DIC detects that a switch signal circuit is low for greater than 30 seconds.

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