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:

Knock Sensor 1 Circuit Low Input
DESCRIPTION A flat type knock sensor (non-resonant type) has a structure that can detect vibrations over a wide band of frequencies: between approximately 6 kHz and 15 kHz. Knock sensors are fitted onto the engine block to detect engine knocking. The knock sensor contains a piezoelectr ...

Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 2. REMOVE HEATED OXYGEN SENSOR (for Bank 1 Sensor 2) (See page EC-38) 3. REMOVE TAIL EXHAUST PIPE ASSEMBLY (a) Remove the 2 bolts. (b) Disconnect the 4 exhaust pipe supports and remove the tail exhaust pipe assembly. (c) Remove the gas ...

Lost Communication with Steering Angle Sensor Module
DTC U0126 Lost Communication with Steering Angle Sensor Module DESCRIPTION This circuit detects the angle and direction of the steering wheel and automatically transmits a signal to the skid control ECU and distance control ECU. DTC No. DTC Detection Condition Trouble ...