DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0125: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module [04/2018 - 08/2021]: Procedure
WARNING: This page is about a different car, the 2021 Toyota Avalon, 2020 Toyota Avalon, and 2019 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FOR DTCs
- Clear the DTCs.
Body Electrical > Pre-Collision 2 > Clear DTCs
- Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
- Check for DTCs.
Body Electrical > Pre-Collision 2 > Trouble Codes
Result
Result Proceed to DTC U0100, U0125, U0126, U0129 and U0155 are not output A DTC U0100, U0125, U0126, U0129 or U0155 is output B
Result:
A
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 - ]
Result:
B
GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 - ]
- Clear the DTCs.