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Home >> Chevrolet >> 2019 >> Traverse L >> Repair and Diagnosis >> Engine Performance >> System >> Data Communications - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC U1814 >> Circuit/System Description

Circuit/System Description

The body control module (BCM) activates the accessory wake-up serial data circuit, when the ignition key is in ACC, ON or START. The accessory wake-up serial data circuit wakes up the devices for serial data bus communication.