SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSLEXUS2010RX 450H 3.5 BREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLELECTRONICALLY CONTROLLED BRAKE (DIAGNOSTICS - INTRODUCTION)ELECTRONICALLY CONTROLLED BRAKE SYSTEMDTC CHECK / CLEAR (TO 08/2009)DTC CHECK / CLEAR
2010 Lexus RX 450h 3.5 B

DTC Check / Clear

2010 Lexus RX 450h 3.5 BSECTION DTC Check / Clear
  1. DTC CHECK/CLEAR (When Using the Techstream) 
    1. Check for DTCs.
      1. Connect the Techstream to the DLC3.
      2. Turn the power switch on (IG).
      3. Turn the Techstream on.
      4. Read the DTCs following the prompts on the Techstream screen. Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
      5. Check the details of the DTCs. Refer to DIAGNOSTIC TROUBLE CODE CHART .
    2. Clear the DTCs.
      1. Connect the Techstream to the DLC3.
      2. Turn the power switch on (IG).
      3. Turn the Techstream on.
      4. Operate the Techstream to clear the codes. Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
      5. According to the display on the Techstream, select the trouble code data display with the clear button.
  2. DTC CHECK/CLEAR (When not Using the Techstream) 
    1. Check for DTCs.
      1. Using SST, connect terminals TC and CG of the DLC3.
        Fig 1: Identifying TC And CG Terminals Of The DLC3
        GTY289442Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        • SST: 09843-18040 
        TEXT IN ILLUSTRATION

        *1 Front view of DLC3
      2. Turn the power switch on (IG).
      3. Observe the blinking pattern of the ABS warning, brake warning / yellow (minor malfunction) and slip indicator lights in order to identify the DTC.

        HINT: 

        If no code appears, inspect the TC and CG terminal circuit, and ABS warning, brake warning / yellow (minor malfunction) and slip indicator light circuits.

        Trouble Area See Procedure
        TC and CG terminal circuit Refer to TC and CG Terminal Circuit
        ABS warning light circuit (Remains on) Refer to ABS Warning Light Remains ON
        ABS warning light circuit (Does not come on) Refer to ABS Warning Light does not Come ON
        Brake warning light / yellow (minor malfunction) circuit (Remains on) Refer to Brake Control Warning Light Remains ON
        Brake warning light / yellow (minor malfunction) circuit (Does not come on) Refer to Brake Control Warning Light does not Come ON
        Slip indicator light circuit (Remains on) Refer to Slip Indicator Light Remains ON
        Slip indicator light circuit (Does not come on) Refer to Slip Indicator Light does not Come ON
      4. As an example, the illustration below shows the blinking patterns of the normal system code and trouble codes 11 and 21 for the ABS warning, brake warning / yellow (minor malfunction) and slip indicator lights.
        Fig 2: Normal System Code And Trouble Codes - Blinking Patterns
        GTY101509Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. Check the details of the DTCs. Refer to DIAGNOSTIC TROUBLE CODE CHART .
      6. After completing the check, disconnect terminals TC and CG of the DLC3 to turn off the display.

        If 2 or more DTCs are detected at the same time, the DTCs will be displayed in ascending order.

    2. Clear the DTCs.
      1. Using SST, connect terminals TC and CG of the DLC3.
        Fig 3: Identifying TC And CG Terminals Of The DLC3
        GTY289442Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        • SST: 09843-18040 
        TEXT IN ILLUSTRATION

        *1 Front view of DLC3
      2. Turn the power switch on (IG).
      3. Clear the DTCs stored in the ECU by depressing the brake pedal 8 times or more within 5 seconds.
        Fig 4: Depressing Brake Pedal
        GTY103129Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Check that the warning light indicates a normal system code.
      5. Remove SST from the terminals of the DLC3.

        HINT: 

        The DTCs cannot be cleared by disconnecting the battery terminal or the ECU IG2 fuse.

  3. END OF DTC CHECK/CLEAR 
    1. Turn the power switch on (IG).
    2. Check that the ABS warning, brake warning / yellow (minor malfunction) and slip indicator lights go off when the power switch is turned on (READY).
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.