DTC C1420: Malfunction in Deceleration Sensor [10/2018 - ]: Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus UX 250h, 2023 Lexus UX 250h, 2022 Lexus UX 250h, 2021 Lexus UX 250h, and 2020 Lexus UX 250h. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK AIRBAG ECU ASSEMBLY INSTALLATION
- Check that the yaw rate and acceleration sensor (airbag ECU assembly) has been installed properly.
Refer to INSTALLATION [10/2018 - 07/2022] , or refer to INSTALLATION [07/2022 - ]
OK
The yaw rate and acceleration sensor (airbag ECU assembly) is tightened to the specified torque.
The yaw rate and acceleration sensor (airbag ECU assembly) is not tilted.
Result
Proceed to OK NG
Result:
OK
REPLACE AIRBAG ECU ASSEMBLY. Refer to REMOVAL [10/2018 - 07/2022] , or refer to REMOVAL [07/2022 - ]
Result:
NG
INSTALL AIRBAG ECU ASSEMBLY CORRECTLY. Refer to INSTALLATION [10/2018 - 07/2022] , or refer to INSTALLATION [07/2022 - ]
- Check that the yaw rate and acceleration sensor (airbag ECU assembly) has been installed properly.