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Home >> GMC >> 2014 >> Terrain Denali, 4D Utility >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC U1826 or U1827: Lost Communication with Sensor Module on Powertrain Expansion CAN Bus >> Circuit/System Description

Circuit/System Description

The Electronic Brake Control Module activates the other devices connected to the chassis high speed GMLAN serial data circuits by applying voltage when the ignition key is in ACC, ON or START. The Electronic Brake Control Module, Rear Differential Clutch Control Module, Multi-Axis Acceleration Sensor, and Steering Wheel Angle Sensor are connected to the chassis high speed GMLAN serial data circuits.

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