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. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM (See page AC-172) 2. REMOVE FRONT WIPER ARM HEAD CAP (See page WW-4) 3. REMOVE FRONT WIPER ARM RH (See page WW-4) 4. REMOVE FRONT WIPER ARM LH (See page WW-4) 5. REMOVE COWL TOP VENTILATOR LOUVER SUBASSEMBLY (See page WW-4) 6. REMOVE WINDSHIEL ...

On-vehicle inspection
1. CONNECT INTELLIGENT TESTER (a) Connect the intelligent tester to the DLC3. (b) Start the engine and run at idle. (c) Select the ACTIVE TEST mode on the intelligent tester. HINT: Please refer to the intelligent tester operator's manual for further details. 2. INSPECT ACTUATOR MOTOR ...

Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance
DTC P2121 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 MONITOR DESCRIPTION The accelerator pedal position sensor is mounted on the accelerator pedal ...