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:

DTC check / clear
1. CHECK DTC (USING INTELLIGENT TESTER) Checking DTCs. Connect the intelligent tester to the DLC3. Turn the ignition switch ON. Read DTCs by following the prompts on the tester screen. HINT: Refer to the intelligent tester operator's manual for further details. 2. CLEAR DTC ...

Rear door lock
INSPECTION 1. INSPECT REAR DOOR LOCK ACTUATOR ASSEMBLY LH Apply battery voltage to the door lock and check operation of the motor. OK HINT: If the result is not as specified, replace the door lock assembly. Measure the resistance according to the value(s) in the ...

Center Airbag Sensor Assembly Communication Circuit Malfunction
DTC B1790 Center Airbag Sensor Assembly Communication Circuit Malfunction DESCRIPTION The center airbag sensor assembly communication circuit consists of the occupant classification ECU and the center airbag sensor assembly. DTC B1790 is recorded when a malfunction is detected in the center ...