DTC B1798: Yaw Rate Sensor Module Malfunction; DTC B1799: Vehicle Stability Control ECU Malfunction [12/2019 - 11/2023]: Procedure

1. Check for electronically controlled brake system DTCs.

   for Gasoline Model: Refer to DTC CHECK / CLEAR [12/2019 - ]

   for HV Model: Refer to DTC CHECK / CLEAR [12/2019 - ]

   OK

   DTCs are not output.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM 

for Gasoline Model: Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 10/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2022 - 11/2023]

for HV Model: Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 10/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 11/2023]

Result: 

OK 

See step  2

1. Using the GTS, check if the CAN communication system is functioning normally.

   OK

   CAN communication system is functioning normally.

   HINT: 

   Refer to Communication Bus Check in CAN Communication System.

   for Gasoline Model: Refer to DIAGNOSIS SYSTEM [12/2019 - 09/2020] , or refer to DIAGNOSIS SYSTEM [09/2020 - 10/2022] , or refer to DIAGNOSIS SYSTEM [10/2022 - 11/2023]

   for HV Model: Refer to DIAGNOSIS SYSTEM [12/2019 - 09/2020] , or refer to DIAGNOSIS SYSTEM [09/2020 - 10/2021] , or refer to DIAGNOSIS SYSTEM [10/2021 - 10/2022] , or refer to DIAGNOSIS SYSTEM [10/2022 - 11/2023]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO CAN COMMUNICATION SYSTEM 

for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2022] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - 11/2023]

for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 10/2021] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2021 - 10/2022] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - 11/2023]

Result: 

OK 

See step  3

1. Using the GTS, perform a health check.

   OK

   DTCs are not output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ] 

Result: 

NG 

GO TO OTHER DIAGNOSTIC TROUBLE CODE CHART