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Home >> Oldsmobile >> 1998 >> Bravada >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Module >> Diagnosis & Testing >> DTC B3138: Door Lock Circuit High >> Circuit Description

Circuit Description

TBC module monitors circuit No. 195 (Light Blue wire) as an input to determine if door lock relay circuit is shorted to battery voltage. See WIRING DIAGRAMS  . When circuit is shorted to battery voltage, DTC will set.

Conditions for setting DTC:

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