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:

Сamshaft timing oil control valve assembly
COMPONENTS ON-VEHICLE INSPECTION 1. INSPECT CAMSHAFT TIMING CONTROL VALVE ASSEMBLY (a) Connect the intelligent tester to the DLC3. (b) Turn the ignition switch to the ON position. (c) Start the engine and warm it up. (d) Select the intelligent tester from the ACTIVE TEST ...

Fail-safe chart
1. FAIL-SAFE This function minimizes the loss of the ECT functions when any malfunction occurs in a sensor or solenoid. (a) ATF (Automatic Transmission Fluid) temperature sensor: When the ATF temperature sensor has a malfunction, 5th upshift is prohibited. (b) Counter gear speed sensor NC ...

Inspection
1. INSPECT SEAT HEATER SWITCH LH Measure the resistance of the seat heater switch when the switch is operated. Resistance If the result is not as specified, replace the switch. HINT: As the dial is being turned, the resistance changes gradually. Push the seat h ...