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:

Inspection
1. BASIC INSPECTIONModel with 6.2 inch display1. Using the Check List for Interview, ask the customer the condition of how the trouble occurred. Check List for Interview > CHECK2. Check the battery.• H4 model: Battery > INSPECTION• H6 model: Battery > INSPECTION3. Refer to “Diag ...