Red Indicator Remains On [06/2018 - 10/2019]: Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC
- Turn the power switch off.
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) and wait for 10 seconds.
- Turn the Techstream on.
- Perform "Health Check" and check for current DTCs.
Refer to HEALTH CHECK [06/2018 - 10/2019]
Result
Result Proceed to DTCs are not output A DTCs are output B
Result:
B
GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [06/2018 - 10/2019]
Result:
A
See step 2
- REPLACE DCM (TELEMATICS TRANSCEIVER)
- Replace the DCM (Telematics Transceiver).
Refer to REMOVAL [06/2018 - 10/2019]
NOTE:- The power switch must be off.
- Do not swap the DCM (Telematics Transceiver) with one from another vehicle.
Result
Proceed to NEXT
Result:
NEXT
PERFORM DCM ACTIVATION. Refer to DCM ACTIVATION [06/2018 - 10/2019]
- Replace the DCM (Telematics Transceiver).