Sienna FWD V6-3.3L (3MZ-FE) (2006)
Throttle Body: Testing and Inspection
On-Vehicle Inspection
ON-VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
a. Listen to 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 noise.
b. Inspect the throttle position sensor.
1. Connect the intelligent tester or OBD II scan tool to the DLC3.
2. Turn the ignition switch ON.
3. Check that the MIL does not illuminate.
4. Check that the throttle valve opening percentage (THROTTLE POS) in the DATA LIST shows the standard value.
Standard throttle valve opening percentage: 60 % or more