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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 131 (Seat Heating System And Seat Cooling System) >> Diagnostic Information and Procedures >> DTC B191A: Front Heated Seat Module >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

An internal fault is detected inside the control module. No external circuits are involved.

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