DTC U0129-87: Lost Communication with Brake System Control Module Missing Message [11/2018 - 08/2020]: Procedure
WARNING: This page is about a different car, the 2020 Toyota RAV4 and 2019 Toyota RAV4. 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)
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: System Select / Health Check.
- 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:
A
GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]
Result:
B
GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2018 - 08/2020]