DTC U0129: Lost Communication with Brake System Control Module [01/2023 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: System Select / Health Check.
5. Read the DTCs

   Result

   Result	Proceed to
   DTC U0129 is output	A
   DTC U0129 and other DTCs are output	B

   HINT: 

   If any DTCs other than U0129 are output, troubleshoot those DTCs first.

Result: 

A 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [01/2023 - ] 

Result: 

B 

GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [01/2023 - ]