DTC U0122-87: Lost Communication with Vehicle Dynamics Control Module Missing Message; DTC U0293-87: Lost Communication With Hybrid Powertrain Control Module Missing Message; DTC U1104-87: Lost Communication with Driving Support ECU Missing Message [01/2017 - 05/2023]: Procedure

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [01/2017 - 05/2023]

   Powertrain > Cruise Control > Clear DTCs 

2. Make sure that the DTC detection conditions are met.

   HINT: 

   If the detection conditions are not met, the system cannot detect the malfunction.

3. Check for DTCs.

   Refer to DTC CHECK / CLEAR [01/2017 - 05/2023]

   Powertrain > Cruise Control > Trouble Codes 

   Result

   Result	Proceed to
   DTC U0122-87, U0293-87 and U1104-87 are not output	A
   DTC U0122-87, U0293-87 or U1104-87 is not output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [01/2017 - 04/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2020 - 05/2023] 

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [01/2017 - 09/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 05/2023]