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Home >> Toyota >> 2019 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (Dynamic Radar Cruise Control System (2GR-FE) - Diagnostic Codes & Circuit Tests (Except Hybrid)) >> Dynamic Radar Cruise Control System >> DTC P0503: Vehicle Speed Sensor "A" Intermittent / Erratic / High [12/2013 - 11/2016] >> Procedure

DTC P0503: Vehicle Speed Sensor "A" Intermittent / Erratic / High [12/2013 - 11/2016]: Procedure

WARNING: This page is about a different car, the 2016 Toyota Highlander, 2015 Toyota Highlander, and 2014 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR DTCS (ABS/VSC/TRAC) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
    5. Check for DTCs.

      Chassis > ABS/VSC/TRAC > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      DTCs are output B
    6. Turn the engine switch off.

    Result:  2

    GO TO VEHICLE STABILITY CONTROL SYSTEM (DTC CHART). Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2013 - 11/2016] 

    Result:  1

    See step  2

  2. REPLACE COMBINATION METER ASSEMBLY 
    1. Replace the combination meter assembly.

      Refer to REMOVAL [12/2013 - ]

    Result: 

    NEXT 

  3. CHECK FOR DTCS 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [12/2013 - 11/2016]

    4. Perform the following to make sure that the DTC detection conditions are met.

      HINT: 

      If the detection conditions are not met, the malfunction cannot be detected.

      1. Drive the vehicle at a speed for which cruise control operation is possible.
      2. Turn the dynamic radar cruise control system on using the cruise control main switch (ON-OFF button).
      3. Push the cruise control main switch to -SET to activate the dynamic radar cruise control system.
    5. Enter the following menus: Powertrain / Radar Cruise / Trouble Codes.
    6. Check for DTCs.

      Powertrain > Radar Cruise > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      DTC P0503 is output B
    7. Turn the engine switch off.

    Result:  1

    END 

    Result:  2

    REPLACE ECM. Refer to  COMPONENTS [12/2013 - 11/2016]