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. Measure the resistance between connector terminals.Preparation tool:Circuit testerConnectorTerminal No.Inspection conditionsStandard(a)1 — 3OpenLess than 1 -4 — 3CloseLess than 1 -(b)1 — 3Tilt downLess than 1 -4 — 3Tilt upLess than 1 -2. Replace the sunroof switch if the inspection result ...