DTC B2085: Communication Error from Driving Support ECU to VSC ECU [09/2014 - 10/2015]: Procedure

CHECK FOR DTC (CAN COMMUNICATION SYSTEM)
1. Select "Bus Check" from the "System Select" (Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2014 - 10/2015] ).
2. Select "Communication Malfunction DTC" from the "Bus Check" screen, and then select "Enter".
  OK
  
  CAN communication system DTC is not output.
Result:

NG

GO TO CAN COMMUNICATION SYSTEM

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] )

Result:

OK

See step 2
CHECK FOR DTC (PRE-COLLISION SYSTEM)
1. Clear the DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).
2. Check for DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).
  OK
  
  DTC B2085 is not output.
Result:

OK

USE SIMULATION METHOD TO CHECK

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] )

Result:

NG

REPLACE SEAT BELT CONTROL ECU

(Refer to REMOVAL [09/2014 - 10/2015] )