Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc u0140 lost communication with body control module

Subaru Legacy BN/BS (2015-2019) Service Manual / Blind spot detection rear cross traffic alert (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc u0140 lost communication with body control module

Detected when CAN data from BIU does not arrive.

NOTE:

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

Dtc b2300 rear radar circuit low

DTC DETECTING CONDITION:• Short circuit to ground in the harness between radar sensor and outer mirror assembly• Ground short circuit of the harness in outer mirror assembly module (Malfun ...

Dtc u0122 lost communication with vehicle dynamics control module

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

Other materials:

Inspection
1. SYSTEM INSPECTIONSymptomsInspection orderRear window defogger does not operate.(1) Check the fuse.(2) Check the rear defogger relay.(3) Check the rear window defogger switch.(4) Check the heat wire.(5) Check the wiring harness.(6) Check body integrated unit.NOTE:Rear window defogger system can be ...