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 ...

General description

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Other materials:

Installation
1. Set the engine wiring harness to the engine, and connect the connector.NOTE:• If the clip is damaged, replace it with a new part.• Before replacing the clip, put an alignment mark (a) on both engine wiring harness and clip to remove the clip, and then align to the alignment mark (a) t ...