DTC C1C50-04: Advanced Drive Control Module System Internal Failure [11/2021 - ]: Procedure
WARNING: This page is about a different car, the 2024 Lexus LS 500h, 2023 Lexus LS 500h, and 2022 Lexus LS 500h. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC
- Clear the DTCs.
Chassis > Advanced Drive Control > Clear DTCs
- Wait at least 5 minutes.
- Check for DTCs.
Chassis > Advanced Drive Control > Trouble Codes
Result
Result Proceed to DTC C1C50-04 is not output A DTC C1C50-04 is output B
Result:
A
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - 10/2022] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - 10/2023] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2023 - ]
Result:
B
REPLACE ADVANCED DRIVE ECU ASSEMBLY. Refer to REMOVAL [11/2021 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]
- Clear the DTCs.