DTC B2085: Communication Error from Driving Support ECU to VSC ECU: Procedure

CHECK FOR DTC (CAN COMMUNICATION SYSTEM)
1. Clear the DTCs. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .
2. Check for DTCs. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .
  OK
  
  CAN communication system DTC is not output.
NG → See step 4

OK: Go to next step
CHECK FOR DTC (PRE-COLLISION SYSTEM)
1. Using the Techstream, enter the following menus: Body Electrical / Pre-Collision / Trouble Codes.
2. Clear the DTCs. Refer to DTC CHECK / CLEAR .
3. Check for DTCs. Refer to DTC CHECK / CLEAR .
  OK
  
  DTC B2085 is not output.
NG → See step 5

OK → See step 3
CHECK FOR INTERMITTENT PROBLEMS (SYMPTOMS SIMULATION). Refer to HOW TO PROCEED WITH TROUBLESHOOTING
GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING
REPLACE SEAT BELT CONTROL ECU. Refer to REMOVAL