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

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

No data is received from ECM.

NOTE:

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

Dtc u0073 control module communication bus off

Detected when malfunction occurs in CAN line. (Bus off)NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Dtc u0427 invalid data received from vehicle security control module

Received error data from keyless access CM.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Other materials:

Inspection
1. CAMSHAFT POSITION SENSOR1. Disconnect the ground terminal from battery sensor. NOTE2. Prepare an oscilloscope.3. While pressing the section (A) shown in the figure, move the lock lever (B) in the direction of the arrow to disconnect the connectors from the ECM in numerical order as shown in the ...