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DTC U1232: Lost Communication With Rear/Side Radar Control Module

DTC detecting condition: 

Detected when CAN data from the Blind Spot Detection/Rear Cross Traffic Alert is not transmitted to stereo camera.

Trouble symptom: 

Emergency pre-collision steering does not operate.

NOTE:

Perform the diagnosis for LAN system. Ref. to  LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE