DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module [08/2015 - ]: Description

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The power steering ECU assembly receives signals from the ECM and brake actuator assembly via the CAN communication system.

DTC No.	DTC Detection Condition	Trouble Area
U0100	Lost communication with ECM	CAN communication system ECM
U0129	Lost communication with brake actuator assembly	CAN communication system Brake actuator assembly