OEM Toyota Land Cruiser Throttle Position Sensor

Toyota Land Cruiser Throttle Position Sensor Parts Questions & Experts Answers

• Throttle Position Sensor
  89452-30140
  Q: How do you replace the throttle position sensor, throttle control motor, and accelerator pedal position sensor on Toyota Land Cruiser?

  A: The throttle position sensor replacement process begins with disconnecting the lead wire connector before removing its 2 set screws and removing the sensor. The new throttle position sensor installation demands the throttle valve to maintain a 5.5-inch opening angle and a 15-degree location to the right of the specified positioning position before securing the sensor. Roll the sensor downward until it touches the throttle valve shaft followed by a temporary screw tightness of the 2 set screws. Link the throttle position sensor connector without connecting the accelerator pedal position sensor connector. Attach a TOYOTA hand-held tester or an OBDII scan tool to DLC3 then turn ON the ignition switch without pressing the pedal and adjust the throttle position sensor for 14.4 - 16% standard throttle valve opening by securing it with 2.0 Nm of torque (20 kg.cm, 18 in.lb). Follow the adjustment process again for the throttle valve opening percentage when it fails to reach the designated parameters. Thoroughly check the throttling valve to ensure its position matches between 10% to 14%. Make another adjustment if needed before painting the set screws and turning OFF the ignition and unplugging the sensor and connector. The replacement process for the throttle control motor begins with sensor removal followed by connector disconnection of the motor and subsequent screw removal of the throttle control motor cover and motor assembly with its attached washer. Place the wave washer inside the new throttle control motor cover before positioning the pins through the holes and placing the grommet and installing 3 screws with torque reaching 3.4 Nm (35 kg.cm, 30 in.lb). Installation requires applying thin grease to the gear teeth followed by washer placement before positioning the throttle control motor cover with its pin to the throttle body and screwing it tightly with 6 screws torqued at 3.4 Nm (35 kg.cm, 30 in.lb). Finally, reconnect the throttle control motor connector. Replace the accelerator pedal position sensor by removing its three set screws and the sensor before installing a new sensor which must be oriented 20 degrees to the left from the specified installation position when the throttle valve has an opener opening angle of approximately 4 degrees. Turn the sensor clockwise until it reaches the throttle valve shaft then apply 5.4 Nm of torque to the set screws with 55 kg.cm force or 48 in.lb torque specification. Perform an inspection of the accelerator pedal position sensor by connecting its connector to the TOYOTA hand-held tester or OBDII scan tool at DLC3 then check the ACCEL POS #1 (VPA) voltage between 0.35 - 0.85 V with the ignition switch turned ON without pressing the pedal. Check the system operation after installing the throttle body.