DTC Check / Clear [09/2014 - 11/2017]

WARNING: This page is about a different car, the 2017 Lexus RC F, 2016 Lexus RC F, and 2015 Lexus RC F. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DTC
1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Cruise Control / Trouble Codes.
5. Check the details of the DTC(s).
  Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2014 - 11/2017]
  
  Powertrain > Cruise Control > Trouble Codes
CLEAR DTC (Using the Techstream)
1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Cruise Control / Trouble Codes.
5. Clear the DTCs.
  Powertrain > Cruise Control > Clear DTCs
CLEAR DTC (without using the Techstream)
1. Perform either of the following operations:
  NOTE:
  After turning engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
  
  Refer to PRECAUTION [09/2014 - 11/2017]
  1. Disconnect the cable from the negative (-) battery terminal for more than 1 minute.
  2. Remove the EFI-MAIN and ETCS fuses from the No. 2 engine room relay block and No. 2 junction block assembly located inside the engine compartment for more than 1 minute.