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Home >> Subaru >> 2020 >> Legacy Sport >> Repair and Diagnosis >> Electrical >> Gauges >> Driver Monitor (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U0101: Lost Communication With TCM

DTC U0101: Lost Communication With TCM

DTC detecting condition: 

Detected when CAN data from TCM does not arrive.

Trouble symptom: 

The driver monitoring system does not operate.

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