2004 Toyota RAV4 Base, AWD, AutomaticFACTORY OEM SERVICE PROCEDURE

On-Vehicle Inspection

CAUTION: When removing deposits on the throttle body, be sure to remove the connector or remove the battery.
  1. INSPECT SYSTEM OPERATION 
    1. Inspect the throttle control motor operating sound.
      1. Turn the ignition switch ON.
      2. When turning the accelerator pedal position sensor lever, check the running sound of the motor. Also, check that there is no friction sound.
        Fig 1: Inspecting Throttle Control Motor Operating Sound
        G02639440Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        If the result is not as specified, check the throttle control motor (see step 2), wiring and ECM.

    2. Inspect the accelerator pedal position sensor.
      1. Connect the hand-held tester or OBD II scan tool to the DLC3.
        2. Fig 2: Connecting Hand-Held Tester To DLC3
        G02639441Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Turn the ignition switch ON.
      3. Make sure that the check engine warning lamp (CHK ENG) does not illuminate.
      4. When turning the accelerator pedal position sensor lever to the full-open position, make sure that the CURRENT DATA throttle valve opening percentage (THROTTLE POS) shows the standard value below.

      Standard throttle valve opening percentage: 60 % or more 

      If the result is not as specified, check that the accelerator pedal position sensor (see step  4), wiring and ECM.

  2. INSPECT THROTTLE CONTROL MOTOR RESISTANCE 
    1. Disconnect the connector.
    2. Using an ohmmeter, measure the resistance between the terminals.

      Resistance: 0.3 to 100 Ω at 20°C (68°F) 

      Fig 3: Measuring Resistance Between Terminals Using Ohmmeter
      G02639442Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the throttle body.

  3. INSPECT THROTTLE POSITION SENSOR (See  DTC P0120: THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT MALFUNCTION, DTC P0122 THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT LOW INPUT, DTC P0123 THROTTLE/PEDAL POSITION SENSOR/SWITCH "A" CIRCUIT HIGH INPUT, DTC P0220 THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT MALFUNCTION, DTC P0222 THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT LOW INPUT, DTC P0223 THROTTLE/PEDAL POSITION SENSOR/SWITCH "B" CIRCUIT HIGH INPUT, DTC P2135 THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" VOLTAGE CORRECTION  ) 

    If necessary, replace the throttle body assembly (see REMOVAL  and INSTALLATION ).

  4. INSPECT ACCELERATOR PEDAL POSITION SENSOR (See  INSPECT ACCELERATOR PEDAL POSITION SENSOR  ) 

    If necessary, replace the accelerator pedal assembly (see REMOVAL  and INSTALLATION ).

Factory Service Tools

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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.

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