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Home >> Chevrolet >> 2018 >> Traverse L >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC U1653 >> Circuit/System Description
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Circuit/System Description

The Body Control Module (BCM) activates the ignition circuit, when the vehicle power mode is in ACCESSORY mode or Ignition ON/Vehicle In Service mode. The ignition circuit wakes up the devices for serial data bus communication.

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