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Home >> Subaru >> 2017 >> WRX Base >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Auto Headlight Beam Leveler System (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U0140 Lost Communication With Body Control Module

DTC U0140 Lost Communication With Body Control Module

Detected when CAN data (headlights ON signal) is not received from the body integrated unit.

NOTE: Perform the diagnosis for LAN system. Ref. to PROCEDURE , Basic Diagnostic Procedure.
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