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:

Terminals of ECU
1. CHECK TRANSPONDER KEY AMPLIFIER Disconnect the I14 amplifier connector and measure the resistance between the terminal of the wire harness side connector and body ground. If the result is not as specified, there may be a malfunction on the wire harness side. Reconnec ...

Push Switch / Key Unlock Warning Switch Malfunction
DTC B2780 Push Switch / Key Unlock Warning Switch Malfunction DESCRIPTION This DTC will be output if the transponder key ECU does not detect that the unlock warning switch is on even when the ignition switch is on (Under the normal conditions, the unlock warning switch is on when the ignitio ...

Reassembly
1. INSTALL LH REAR BUMPER SIDE RETAINER Install the LH rear bumper side retainer with the 3 screws. 2. INSTALL RH REAR BUMPER SIDE RETAINER Install the RH rear bumper side retainer with the 3 screws. 3. INSTALL REAR BUMPER REINFORCEMENT SUBASSEMBLY Install the rear bumper reinf ...