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

DTC CHECK / CLEAR

CHECK FOR DTC

(a) Connect the Techstream to the DLC3.

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

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Road Sign Assist / Trouble Codes.

Body Electrical > Road Sign Assist > Trouble Codes

(e) Check for DTCs (Test Failed / Pending / Confirmed).

Techstream Display

Description

Test Failed

Shows the malfunction judgment results during the current trip.

Pending

Shows the malfunction judgment results up to now. (Indicates the possibility of a malfunction when no DTC is confirmed.)

Confirmed

Shows the DTCs confirmed up to now. (The number of current trips differs for each DTC.)

HINT:

Freeze frame data is stored respectively for pending DTCs, confirmed DTCs and the latest DTCs.

CLEAR DTC

(a) Connect the Techstream to the DLC3.

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

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Road Sign Assist / Clear DTCs.

Body Electrical > Road Sign Assist > Clear DTCs

(e) Clear the DTCs.

HINT:

Clearing the DTCs will also clear the freeze frame data.

    Diagnosis System
    DIAGNOSIS SYSTEM DIAGNOSIS FUNCTION (a) The road sign assist system displays a warning message on the multi-information display to inform the driver that the system is unavailable when it is malfuncti ...

    Freeze Frame Data
    FREEZE FRAME DATA DESCRIPTION (a) Whenever a road sign assist system DTC is stored, the forward recognition camera stores the current vehicle state (ECU and sensor information) as Freeze Frame Data. C ...

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