DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0125-87: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0293-87: Lost Communication With Hybrid Powertrain Control Module Missing Message [08/2020 - 12/2021]: Procedure
WARNING: This page is about a different car, the 2025 Toyota RAV4, 2024 Toyota RAV4, 2023 Toyota RAV4, 2022 Toyota RAV4, and 2021 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
- CLEAR DTC
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Front Recognition Camera (Front Lighting Control) / Clear DTCs.
- Clear the DTCs.
Body Electrical > Front Recognition Camera (Front Lighting Control) > Clear DTCs
Result
Proceed to NEXT
Result:
NEXT
See step 2
- CHECK FOR DTC
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Wait 5 seconds or more.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Front Recognition Camera (Front Lighting Control) / Trouble Codes.
- Check for DTCs.
Body Electrical > Front Recognition Camera (Front Lighting Control) > Trouble Codes
OK
DTCs are not output.
Result
Proceed to OK NG
Result:
OK
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]
Result:
NG
GO TO CAN COMMUNICATION SYSTEM
for HV Model:
Refer to HOW TO PROCEED WITH TROUBLESHOOTING [02/2019 - ]
for Gasoline Model: