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

Subaru Legacy BN/BS (2015-2019) Service Manual / Keyless access with push button start system (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 u0073 control module communication bus off

Detected when CAN line abnormality is detected.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Dtc u0422 invalid data received from body control module

Detected when CAN data from BIU is abnormal.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Other materials:

Installation
1. TRANSMISSION REAR CROSSMEMBER AND REAR CUSHION RUBBER1. Attach the rear cushion rubber to the transmission.Tightening torque:40 N·m (4.1 kgf-m, 29.5 ft-lb)2. Install the crossmember.Tightening torque:T1: 35 N·m (3.6 kgf-m, 25.8 ft-lb)T2: 75 N·m (7.6 kgf-m, 55.3 ft-lb)3. Remov ...