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Home >> Subaru >> 2021 >> WRX Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> SUBARU Eyesight System (Driver Assist) (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U0100: Lost Communication With ECM/Pcm "A"

DTC U0100: Lost Communication With ECM/Pcm "A"

Detected when CAN data from engine control module (ECM) is not transmitted to stereo camera.

NOTE: Perform the diagnosis for LAN system. Refer to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .