Toyota Sienna Service Manual: On-vehicle inspection

Toyota Sienna Service Manual / Engine / 2Gr-fe engine control system / Sfi system / Throttle body / On-vehicle inspection

1. INSPECT THROTTLE BODY

(a) 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.

(b) 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.

Removal

1. Remove windshield wiper motor assembly hint: (see page ww-4) 2. Remove front outer cowl top panel subassembly (see page em-27) 3. Drain engine coolant (see page co-6) 4. Remove v-bank cover s ...

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If the vehicle becomes stuck
Carry out the following procedures if the tires spin or the vehicle becomes stuck in mud, dirt, or snow: Stop the engine. Set the parking brake and shift the shift lever to P. Remove the mud, snow, or sand from around the stuck tire. Place wood, stones or some other material under the tires ...

Check mode procedure
HINT: Intelligent tester only: Compared to normal mode, check mode is more sensitive to malfunctions. Therefore, check mode can detect the malfunctions that cannot be detected by normal mode. NOTICE: All the stored DTCs and freeze frame data are erased if: the ECM is changed from nor ...

DTC check / clear
1. DTC CHECK/CLEAR (USING INTELLIGENT TESTER:) DTC check Connect the intelligent tester to the DLC3. Turn the ignition switch to the ON position. Read the DTCs on the tester screen. DTC clear Connect the intelligent tester to the DLC3. &n ...