Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc u0401 invalid data received from ecm/pcm "a"

Subaru Legacy BN/BS (2015-2019) Service Manual / Eyesight (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc u0401 invalid data received from ecm/pcm "a"

Failure counter diagnosis of engine control module (ECM)

NOTE:

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

Dtc u0402 invalid data received from tcm

Failure counter diagnosis of automatic transmission control module (TCM)NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Dtc u0155 lost communication with instrument panel cluster (ipc) control module

Detected when CAN data from combination meter is not transmitted to stereo camera.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Other materials:

Removal
1. Lift up the vehicle, and then remove the front wheels.2. Remove the under cover - front. Front Under Cover > REMOVAL3. Remove the front arm.(1) Pull out the cotter pin (a).(2) Remove the castle nut (b) and bolt.(3) Extract the front arm (c) from the housing assembly - front axle.CAUTION:Use a to ...