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Home >> Cadillac >> 2015 >> XTS Base >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Power Door Lock System And Release Systems >> Diagnostic Information and Procedures >> DTC B2730: Interior Trunk Lid Unlatch Switch Circuit Malfunction >> Circuit/System Description
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Circuit/System Description

When the ignition is ON, the Body Control Module supplies a 12 V signal to the rear compartment lid unlatch switch through the trunk release switch signal circuit. When the interior rear compartment lid release switch is pressed, the voltage within the signal circuit is pulled low and in response, the Body Control Module will energize the trunk release relay.