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 / Telematics system (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc u0401 invalid data received from ecm/pcm "a"

Detected when CAN data from ECM is abnormal.

NOTE:

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

Dtc u0402 invalid data received from tcm

This is detected when CAN data from TCM is abnormal.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 does not arrive.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Other materials:

Removal
1. Disconnect the ground terminal from battery sensor. NOTE2. Release the hook, and remove the under cover assembly - passenger.3. Remove the blower resistor.(1) Disconnect the connector.(2) Remove the screw and remove the blower resistor. ...