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Home >> Subaru >> 2022 >> Forester Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> SUBARU Eyesight System (Driver Assist) (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC U1073: Control Module Communication Bus "Sonar-Can" Off

DTC U1073: Control Module Communication Bus "Sonar-Can" Off

DTC detecting condition: 

Detected when the bus off status (the stereo camera detects the failure and is disconnected from the local CAN line) occurs.

Trouble symptom: 

The reverse assist braking does not operate.

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