DTC U0154: Lost Communication with Restraints Occupant Classification System Module; DTC U1104: Lost Communication with Driving Support ECU; DTC U124F: Lost Communication with Pedestrian Protection ECU [10/2020 - 10/2023]: Procedure

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2020 - 10/2023]

   Body Electrical > SRS Airbag > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Turn the power switch on (IG), and wait for at least 60 seconds.
2. Check for DTCs.

   Refer to DTC CHECK / CLEAR [10/2020 - 10/2023]

   Body Electrical > SRS Airbag > Trouble Codes 

   Result

   Proceed to
   DTC U0154, U1104 and U124F are not output
   DTC U0154, U1104 or U124F is output

Result: 

DTC U0154, U1104 and U124F are not output 

USE SIMULATION METHOD TO CHECK. 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: 

DTC U0154, U1104 or U124F is output 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2020 - 11/2021]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - 10/2023]