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:

Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance
HINT: This DTC relates to the Accelerator Pedal Position (APP) sensor. DESCRIPTION Refer to DTC P2120 (See page ES-343). MONITOR DESCRIPTION The accelerator pedal position sensor is mounted on the accelerator pedal bracket. The accelerator pedal position sensor has 2 sensor elements ...

DTC check / clear
1. DTC CHECK (USING SST CHECK WIRE) Check the DTCs (Present trouble code). Turn the ignition switch ON, and wait for approximately 60 seconds. Using SST, connect terminals TC and CG of the DLC3. SST 09843-18040 NOTICE: Connect the terminals to the correct positi ...

Installation
1. INSTALL TRANSFER ASSEMBLY (a) Apply sealant 1281 to the transaxle assembly and transfer assembly in continuous beaded from of 1.2 mm diameter as shown in the illustration. NOTICE: Wipe any grease off from the attaching surfaces. Install it within 10 minutes after applying the se ...