DTC B2090: Driving Support System Malfunction: Procedure

CHECK FOR DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM)
1. Check DTCs for dynamic radar cruise control system. Refer to DTC CHECK / CLEAR .
  OK
  
  Dynamic radar cruise control system DTCs are not output.
NG → See step 4

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

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.
  OK
  
  DTC B2090 is not output.
NG → See step 6

OK → See step 7
GO TO DYNAMIC RADAR CRUISE CONTROL SYSTEM. Refer to DIAGNOSTIC TROUBLE CODE CHART
GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART
REPLACE SEAT BELT CONTROL ECU. Refer to REMOVAL
USE SIMULATION METHOD TO CHECK (SYMPTOMS SIMULATION). Refer to HOW TO PROCEED WITH TROUBLESHOOTING