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Home >> GMC >> 1998 >> Envoy >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Module >> Diagnosis & Testing >> DTC B2527: Front FOGLIGHT Circuit Low >> Circuit Description
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Circuit Description

The TBC module monitors circuit No. 192 (Orange) to determine if front foglight circuit is shorted to ground. See WIRING DIAGRAMS  . When circuit is shorted to ground for 184 seconds, DTC will set. TBC module also monitors ignition switch position based on ignition signal inputs.

Conditions for setting DTC: