Caution / Notice / Hint

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2024 Lexus RC F, 2023 Lexus RC F, 2022 Lexus RC F, 2021 Lexus RC F, and 2020 Lexus RC F. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

When replacing the steering angle sensor, confirm that the replacement part is of the correct specification.
Before performing troubleshooting, inspect the connectors of related circuits.
If DTC C1782 (Power Source Voltage Malfunction) is output at the same time, perform troubleshooting for C1782 first.
Refer to DTC C1782: Power Source Voltage Malfunction [08/2016 - 01/2023] , or refer to DTC C1782: Power Source Voltage Malfunction [01/2023 - ]
Before replacing the absorber control ECU, perform all of the following:
- Symptom simulation.
  Refer to HOW TO PROCEED WITH TROUBLESHOOTING [03/2019 - 09/2020] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2020 - 01/2023] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [01/2023 - ]
- DTC inspection.
  Refer to DTC CHECK / CLEAR [08/2016 - 01/2023] , or refer to DTC CHECK / CLEAR [01/2023 - ]
- Techstream inspection.
  Refer to DATA LIST / ACTIVE TEST [03/2019 - 01/2023] , or refer to DATA LIST / ACTIVE TEST [01/2023 - ]
  - If no malfunctions are found in other areas, replace the absorber control ECU.
When the absorber control ECU is replaced, switch to test mode and check that all test mode DTCs are cleared when their respective deletion conditions are met.
Refer to TEST MODE PROCEDURE [08/2016 - ]