DTC C1280: Engine Circuit Malfunction [08/2020 - ]: Procedure
WARNING: This page is about a different car, the 2024 Lexus ES 250, 2023 Lexus ES 250, 2022 Lexus ES 250, and 2021 Lexus ES 250. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FOR DTC (ENGINE CONTROL SYSTEM)
- Check if the engine control system DTC is output.
Powertrain > Engine > Trouble Codes
Result
Result Proceed to Engine control system DTC is not output A Engine control system DTC is output B
Result:
A
REPLACE 4WD ECU ASSEMBLY. Refer to REMOVAL [08/2020 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]
Result:
B
GO TO ENGINE CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART). Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2020 - 08/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [08/2021 - 09/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2022 - ]
- Check if the engine control system DTC is output.