DTC U0129-87: Lost Communication with Brake System Control Module Missing Message [11/2021 - ]: Procedure

WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC U0129-87)

Perform the Health Check using the GTS.

Read the DTCs.

Result

Result	Proceed to
DTC U0129-87 is output	A
DTC U0129-87 and other DTCs are output	B

HINT:

If any DTCs other than U0129-87 are output, troubleshoot those DTCs first.

Result:

GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]

Result:

GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2021 - 03/2023] , or Refer to DIAGNOSTIC TROUBLE CODE CHART [03/2023 - 03/2024] , or Refer to DIAGNOSTIC TROUBLE CODE CHART [03/2024 - ]