DTC Check / Clear [04/2013 - 09/2018]
WARNING: This page does not describe the selected car, but rather 22 other vehicles, including the 2024 Lexus IS 350, 2024 Lexus IS 300, 2023 Lexus IS 350, 2023 Lexus IS 300, and 2022 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC (When Using Techstream)
- Check for DTCs.
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Read the DTCs following the prompts on the Techstream screen. Enter the following menus: Chassis / Four Wheel Drive / Trouble Codes.
Chassis > Four Wheel Drive > Trouble Codes
- Check the details of the DTCs.
- Check for DTCs.
- CLEAR DTC (When Using Techstream)
- Clear the DTCs.
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Operate the Techstream to clear the DTCs. Enter the following menus: Chassis / Four Wheel Drive / Trouble Codes.
Chassis > Four Wheel Drive > Clear DTCs
- According to the display on the Techstream, select the trouble code data display with the clear button.
- Clear the DTCs.
- CHECK DTC (When Using SST Check Wire)
- Check for DTCs.
*a Front view of DLC3 - Using SST, connect terminals TC (13) and CG (4) of the DLC3 (to enter DTC output mode).
- SST: 09843-18040
- Turn the engine switch on (IG).
- Read the DTCs displayed on the multi-information display.
HINT:
- "DIAG AWD" is displayed on the multi-information display, and the 4WD ECU assembly checks the system for malfunctions.
- If the AWD control system is normal, "DIAG AWD FF" will be displayed on the multi-information display (normal system code).
- If the AWD control system is not normal, "DIAG AWD XX (DTC)" will be displayed on the multi-information display.
- DTCs are explained in Diagnostic Trouble Code Chart.
Refer to DIAGNOSTIC TROUBLE CODE CHART [04/2013 - 08/2015] , or refer to DIAGNOSTIC TROUBLE CODE CHART [08/2015 - 10/2016] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2016 - 10/2017] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2017 - 09/2020]
Section Title See Procedure AWD Warning does not Come ON Refer to AWD Warning does not Come ON [04/2013 - 09/2020] TC and CG Terminal Circuit Refer to TC and CG Terminal Circuit [04/2013 - 08/2015] , or refer to TC and CG Terminal Circuit [08/2015 - 09/2018]
- Using SST, connect terminals TC (13) and CG (4) of the DLC3 (to enter DTC output mode).
- Check for DTCs.
- CLEAR DTC (When Using SST Check Wire)
- Clear the DTCs.
- Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.
- SST: 09843-18040
- Turn the engine switch on (IG).
- Clear the DTCs stored in the 4WD ECU assembly by depressing the brake pedal 8 times or more within 5 seconds.
- Check that the AWD warning (multi-information display) displays "DIAG AWD FF".
- Turn the engine switch off.
- Remove SST from the terminals of DLC3.
- Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.
- Clear the DTCs.