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Home >> Toyota >> 2015 >> 4Runner TRD Pro >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Power Steering System - (Diagnostic Codes & Circuit Tests) >> Power Steering System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module [08/2014 - ] >> Description
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DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module [08/2014 - ]: Description

The power steering ECU assembly receives signals from the ECM, steering angle sensor and master cylinder solenoid (skid control ECU) via the CAN communication system.

DTC Code DTC Detection Condition Trouble Area
U0100 The engine speed signal is lost. CAN communication system
U0126 The steering angle signal is lost. CAN communication system
U0129 The vehicle speed signal is lost. CAN communication system