Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc u0100 lost communication with ecm/pcm "a"

Subaru Legacy BN/BS (2015-2019) Service Manual / Combination meter (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc u0100 lost communication with ecm/pcm "a"

Detected when CAN data from the engine control module (ECM) does not arrive.

NOTE:

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

Dtc u1433 invalid data received from eyesight

Detected when CAN data from the stereo camera does not arrive.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Dtc u1235 lost communication with eyesight

Detected when CAN data from the stereo camera does not arrive.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Other materials:

Inspection
STEPCHECKYESNO1.CHECK SOLENOID UNIT.Measure the resistance of solenoid unit connector terminals.TerminalsNo. 4 — No. 3:Is the resistance 27.6 — 30.5 -- AT Shift Lock Solenoid and “P” Range Switch > INSPECTIONReplace the solenoid unit. AT Shift Lock Solenoid and “P” Range ...