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:

SFR Solenoid Circuit
DESCRIPTION This solenoid goes on when signals are received from the ECU and controls the pressure acting on the wheel cylinders to control the braking force. WIRING DIAGRAM INSPECTION PROCEDURE 1 RECONFIRM DTC HINT: This code is detected when a problem is determined in the bra ...

Illumination Circuit
DESCRIPTION Power is supplied to the radio and navigation assembly and steering pad switch illumination when the light control switch is in the TAIL or HEAD position. WIRING DIAGRAM INSPECTION PROCEDURE NOTICE: The vehicle is equipped with an SRS (Supplemental Restraint System) such as t ...

Cold Start Idle Air Control System Performance
DTC P050A Cold Start Idle Air Control System Performance DESCRIPTION This monitor will run when the engine is started at -10 to 50C (14 to 122F) of the engine coolant temperature. The DTC will set after the engine idling for 13 seconds (2 trip detection logic). The DTC is designed to monit ...