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Home >> Subaru >> 2021 >> Ascent Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Exterior Lights (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U0101: Lost Communication With TCM

DTC U0101: Lost Communication With TCM

Detected when CAN data from TCM does not arrive.

NOTE: Perform the diagnosis for LAN system, Ref. to LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure>PROCEDURE .
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