DTC U0101-87: Lost Communication with TCM 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 U0101-87)
- Perform the Health Check using the GTS.
- Read the DTCs.
Result
Result Proceed to DTC U0101-87 is output A DTC U0101-87 and other DTCs are output B HINT:
If any DTCs other than U0101-87 are output, troubleshoot those DTCs first.
Result:
A
REPLACE ECM. Refer to REMOVAL [11/2021 - ]
Result:
B
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 - ]