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Home >> Subaru >> 2016 >> Crosstrek Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 30 (Instrumentation/Driver Info (Diagnostics)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U0100: Lost Communication With ECM/Pcm "A"

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

WARNING: This page is about a different car, the 2015 Subaru XV Crosstrek and 2015 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.

Detected when CAN data from the engine control module (ECM) does not arrive.

NOTE: Perform the diagnosis for LAN system. < Ref. to PROCEDURE , Basic Diagnostic Procedure.> < Ref. to PROCEDURE , Basic Diagnostic Procedure.>