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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 223 (Seat System) >> Diagnostic Information and Procedures >> DTC B2508 or B2509: Seat Heater Relay Circuit >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

When the heated seat system is activated, the body control module (BCM) controls the heated seat operation through the heated seat relay control circuit and the heated seat relay. The relay energizes and applies battery positive voltage to the seat heater elements. The circuit that generated this DTC is the heated seat relay control circuit that is wired between the BCM and the heated seat relay.

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