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 ...

Other materials:

Removal
1. Remove no. 2 Air cleaner inlet (see page em- 28) 2. Remove air cleaner cap sub-assembly (a) Disconnect the 3 vacuum hoses. (b) Loosen the bolt, disconnect the 2 connectors, and remove the 2 vacuum hoses. (c) Remove the 2 bolts, air cleaner cap sub-assembly, and air cleaner filt ...

On-vehicle inspection
1. INSPECT DRIVE BELT (a) Visually check the drive belt for excessive wear, frayed cords, etc. If any defect is found, replace the drive belt. HINT: Cracks on the rib side of a belt are considered acceptable. Replace the belt if there are any missing ribs. 2. CHECK POWER STEERING FLUID ...

Removal
1. DISCONNECT BATTERY NEGATIVE TERMINAL 2. REMOVE FRONT DOOR SCUFF PLATE LH HINT: (See page IP-6) 3. REMOVE FRONT DOOR SCUFF PLATE RH HINT: (See page IP-6) 4. REMOVE COWL SIDE TRIM BOARD LH HINT: (See page IP-6) 5. REMOVE COWL SIDE TRIM BOARD RH HINT: (See page IP-6) 6. REMOVE INSTRUMEN ...