DTC U0154/99: Lost Communication with Restraints Occupant Classification System Module; DTC U124F/99: Lost Communication with Pedestrian Protection ECU [03/2017 - 04/2020]: Procedure

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [03/2017 - 04/2020]

   Body Electrical > SRS Airbag > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

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

   Refer to DTC CHECK / CLEAR [03/2017 - 04/2020]

   Body Electrical > SRS Airbag > Trouble Codes 

   Result

   Proceed to
   DTC U0154/99 and U124F/99 are not output
   DTC U0154/99 or U124F/99 is output

Result: 

DTC U0154/99 and U124F/99 are not output 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - 04/2020] 

Result: 

DTC U0154/99 or U124F/99 is output 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - 09/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 05/2023]