Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc u0101 lost communication with tcm

Subaru Legacy BN/BS (2015-2019) Service Manual / Keyless access with push button start system (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc u0101 lost communication with tcm

Detected when CAN data from TCM does not arrive.

NOTE:

Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE

Dtc b2271 ign relay control circuit

DTC DETECTING CONDITION:• When malfunction is detected in IG1 and IG2 drive circuits in the keyless access CM.• When malfunction is detected in IG hold circuit in the keyless access CM.TRO ...

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Inspection
1. Check that the following operations perform normally.CAUTION:Fix the motor to prevent the motor from being shorted by moving during operation.(1) When the battery is connected to the terminal of connectors, confirm that the motor operates at low speed.(2) When the battery is connected to the term ...