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Toyota Sienna Service Manual: On-vehicle inspection

Toyota Sienna Service Manual / 2GR-FE Engine control system / Throttle body / On-vehicle inspection

1. INSPECT THROTTLE BODY

  1.  Listen to the throttle control motor operating sounds.
  1.  Turn the ignition switch to the ON position.
  2. When pressing the accelerator pedal position sensor lever, listen to the running motor. Make sure that no friction noise comes from the motor.

    If friction noise exists, replace the throttle body.

  1.  Inspect the throttle position sensor.

INSPECT THROTTLE BODY

  1.  Connect the intelligent tester to the DLC3.
  2.  Turn the ignition switch to the ON position.
  3.  Check that the MIL turns off.
  4.  Under CURRENT DATA, the throttle valve opening percentage (THROTTLE POS) should be within the standard range below.

Standard throttle valve opening percentage: 60% or more If the percentage is less than 60%, replace the throttle body.

NOTICE: When checking the throttle valve opening percentage, the transmission should be in neutral.

Components
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Removal
1. REMOVE WINDSHIELD WIPER MOTOR ASSEMBLY 2. REMOVE FRONT OUTER COWL TOP PANEL SUBASSEMBLY 3. DRAIN ENGINE COOLANT 4. REMOVE V-BANK COVER SUB-ASSEMBLY 5. REMOVE NO. 2 AIR CLEANER INLET 6. REMOVE ...

Other materials:

Sliding door child-protector locks
The sliding door cannot be opened by the inside door handle and the second seat sliding door switch when the lock is set. Unlock Lock These locks can be set to prevent children from opening the sliding doors. Push down on each sliding door switch to lock that sliding door. The p ...

Actuator Supply Voltage Circuit / Open
DTC P0657 Actuator Supply Voltage Circuit / Open DESCRIPTION The ECM monitors the output voltage to the throttle actuator. This self-check ensures that the ECM is functioning properly. The output voltage is usually 0 V when the ignition switch is turned off. If the output voltage is higher t ...

On-vehicle inspection
1. CHECK SEAT HEATER CONTROL (WIRE HARNESS SIDE)  Disconnect the connector from the seat heater control.  Measure the voltage and resistance of each terminal of the wire harness side connector. Standard If the result is not as specified, there may be a malfunction on ...

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