DTC U0233: Lost Communication with Blind Spot Monitor Master Module [12/2017 - 10/2023]: Procedure

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [12/2017 - ]

   Body Electrical > Blind Spot Monitor Slave > Clear DTCs 

2. Turn the engine switch off.
3. Turn the engine switch on (IG).
4. Check for DTCs.

   Refer to DTC CHECK / CLEAR [12/2017 - ]

   Body Electrical > Blind Spot Monitor Slave > Trouble Codes 

   OK

   DTC U0233 is not output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 09/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 10/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2020 - 11/2021]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - 10/2022]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - 10/2023] 

Result: 

NG 

See step  2

1. Replace the blind spot monitor sensor RH.

   Refer to REMOVAL [12/2017 - 09/2018] , or refer to REMOVAL [09/2018 - 10/2020] , or refer to REMOVAL [10/2020 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [12/2017 - ]

   Body Electrical > Blind Spot Monitor Slave > Clear DTCs 

2. Turn the engine switch off.
3. Turn the engine switch on (IG).
4. Recheck for DTCs and check if the same DTC is output again.

   Refer to DTC CHECK / CLEAR [12/2017 - ]

   Body Electrical > Blind Spot Monitor Slave > Trouble Codes 

   OK

   DTC U0233 is not output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (BLIND SPOT MONITOR SENSOR RH WAS DEFECTIVE) 

Result: 

NG 

REPLACE BLIND SPOT MONITOR SENSOR LH. Refer to  REMOVAL [12/2017 - 09/2018]  , or refer to  REMOVAL [09/2018 - 10/2020]  , or refer to  REMOVAL [10/2020 - 10/2022]  , or refer to  REMOVAL [10/2022 - 10/2023]