Toyota Sequoia (2005). Manual - part 696

B17467

SF1XJ–01

D13872

Hand–Held Tester

DLC3

CAN VIM

–

SFI

THROTTLE BODY

SF–39

2773

THROTTLE BODY

ON–VEHICLE INSPECTION

1.

REMOVE THROTTLE BODY COVER

2.

INSPECT SYSTEM OPERATION

(a)

Inspect the throttle control motor for operating sound.
(1)

Turn the ignition switch ON.

(2)

When depressing the accelerator pedal, check the
running sound of the motor. Also, check that there
is no friction sound.

If operation is not as specified, check the throttle control motor
(see step 3), wiring and ECM.

(b)

Inspect the accelerator pedal position sensor.
(1)

Connect a hand–held tester to the Controller Area
Network Vehicle Interface Module (CAN VIM). Then
connect the CAN VIM to the Date Link Connector 3
(DLC3).

(2)

Check that the MIL does not light up.

(3)

When turning the accelerator pedal position sensor
lever to the full–open position, check that the
throttle valve opening percentage (THROTTLE
POS) of the CURRENT DATA showns the standard
value.

Standard throttle valve opening percentage:
60% or more

If operation is not as specified, check that the accelerator pedal
position sensor (see page 

DI–370

), wiring and ECM.

If not using a hand–held tester, measure the voltage between
terminals (VTA1–E2, VTA2–E2) of the ECM connector (See
page 

DI–127

).

(c)

Inspect the idle speed.
(1)

Start the engine and check that the MIL does not
light up.

(2)

Allow the engine to warm up to normal operating
temperature.

(3)

Turn the A/C compressor ON to OFF, and check the
idle speed.

Idle speed (Transmission in neutral): 700 

±

 50 rpm

NOTICE:
Perform inspection without an electrical load.
(d)

After checking the above (a) to (c), perform the driving test
and check that there is no sense of incongruity.

B17499

M–

M+

Ohmmeter

SF–40

–

SFI

THROTTLE BODY

2774

3.

INSPECT THROTTLE CONTROL MOTOR

(a)

Disconnect the throttle control motor connector.

(b)

Using an ohmmeter, measure the motor resistance be-
tween terminals M+ and M–.
Motor resistance: 0.3 to 100 

Ω

 at 20

°

C (68

°

F)

If the resistance is not as specified, replace the throttle body as-
sembly (see page 

SF–42

).

(c)

Reconnect the throttle control motor connector.

4.

INSPECT THROTTLE POSITION SENSOR 
(See page 

DI–127

)

If necessary, replace the throttle body assembly (see page 

SF–42

).

5.

REINSTALL THROTTLE BODY COVER

SF1UP–02

B17468

Throttle Body Cover

PS Air Hose

Throttle Control
Connector

Intake Air Connector

14 (143, 10)

N·m (kgf·cm, ft·lbf) : Specified torque

PCV Hose

Vacuum Hose

MAF Meter Wire

Suction Hose

Throttle Body 
Assembly

Water Bypass
Hose

Water Bypass
Hose

–

SFI

THROTTLE BODY

SF–41

2775

COMPONENTS

SF0P5–16

B17470

B17469

SF–42

–

SFI

THROTTLE BODY

2776

REMOVAL

1.

REMOVE THROTTLE BODY COVER

2.

DRAIN ENGINE COOLANT

3.

REMOVE INTAKE AIR CONNECTOR

4.

REMOVE THROTTLE BODY

(a)

Disconnect the throttle control connector.

(b)

Disconnect the 2 water bypass hoses from the throttle
body.

(c)

Remove the nut and 3 bolts, and remove the throttle body
from the intake manifold.