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Home >> Buick >> 2020 >> Envision Essence, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Shift Lock Control System) >> Diagnostic Information and Procedures >> DTC B270A >> Circuit/System Description
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Circuit/System Description

WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

For an overview of the component/system, refer to:Automatic Transmission Shift Lock Control Description and Operation 

Circuit Description
Control The output circuit is switched to 12 V to activate the component.
Ground Chassis Ground
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