Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc u0073 control module communication bus off

Subaru Legacy BN/BS (2015-2019) Service Manual / Airbag system (diagnostics) / Diagnostic chart with trouble code / Dtc u0073 control module communication bus off

DIAGNOSIS START CONDITION:

Ignition voltage remains at 10 V or more for 1 second.

DTC DETECTING CONDITION:

Detected when malfunction occurs in CAN line.

NOTE:

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

Dtc b1908 short in front p/t lh (to +b)

DIAGNOSIS START CONDITION:Ignition voltage is 10 V to 16 V.DTC DETECTING CONDITION:Short circuit failure in power supply (shorted in rear harness power supply, shorted in front seat pretensioner LH po ...

Dtc u0423 invalid data received from instrument panel cluster control module

DTC DETECTING CONDITION:Detected when CAN data from combination meter is abnormal.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE ...

Other materials:

Procedure
NOTE:Before making repairs, perform the oil return operation to return the compressor oil in circulation with the refrigerant to the compressor.1. Increase the engine speed to 1,500 r/min.2. Turn the A/C switch to ON.3. Turn the temperature control dial to LO (MAX COOL).4. Turn the FRESH/RECIRC swit ...