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Circuit/System Description

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

The K9 Body Control Module (BCM) controls the KR124 Trailer Ignition Power Relay coil control circuit 5486, by applying voltage when the Ignition in Service Mode or engine running. The relay is grounded by ground circuit 2550. The K9 Body Control Module (BCM) Monitors the control circuit 5486 to determine proper operation.

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