Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Dtc Check / Clear

DTC CHECK / CLEAR

DTC CHECK

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG).

(d) Turn the Techstream on.

(e) Read the DTCs following the prompts on the Techstream. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

(f) Check the details of the DTCs.

(g) Check the freeze frame data.

(1) If a DTC is stored, check the corresponding freeze frame data to gain an understanding of the vehicle condition at the time.

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CHECK TIME STAMP

HINT:

By checking Time Stamp, the time and order in which DTCs were stored in an ECU can be checked.

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG).

(d) Turn the Techstream on.

(e) Enter the following menus: Health Check.

(f) Perform the following steps when the data setting screen is displayed.

(g) Select the systems for which to perform Health Check and check for time stamp data.

(h) Select "Yes" when "Would you like to include Time Stamp Data?" is displayed.

HINT:

If "Yes" is not selected, time stamp data will not be stored.

(i) After Health Check has completed, select "Time Stamp Data" to display the Time Stamp screen.

(j) Select the desired system from the drop-down list on the bottom of the Time Stamp screen.

(k) Check the order and time which DTCs were stored for the selected system.

DTC CLEAR

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG).

(d) Turn the Techstream on.

(e) Operate the Techstream to clear the codes. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

(f) Clear the DTCs by following the prompts on the Techstream.

HINT:

Refer to the Techstream operator's manual for further details.