DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0101: Lost Communication with TCM; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0142: Lost Communication with Body Control Module "B" [11/2017 - 01/2023]: Procedure

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [11/2017 - 01/2023]

   Chassis > Front Recognition Camera > Clear DTCs 

2. Perform the following procedure.

   HINT: 

   If the following procedure is not performed, the previously output DTC cannot be detected.

   1. Turn the engine switch on (IG) and wait 2 seconds or more.
   2. Drive the vehicle at a speed of 1 km/h or 1 mph or more for 5 seconds or more.
3. Check for DTCs.

   Refer to DTC CHECK / CLEAR [11/2017 - 01/2023]

   Chassis > Front Recognition Camera > Trouble Codes 

   Result

   Result	Proceed to
   DTC U0100, U0101, U0123, U0129 and U0142 are not output	A
   DTC U0100, U0101, U0123, U0129 or U0142 is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - 03/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2019 - 09/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2020 - 01/2023] 

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - 03/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2019 - 01/2023]