Toyota Sequoia (2005). Manual - part 790

SA2CZ–01

F16823

F14100

”A”

Air tube

Housing

Connector No. 1

F14101

SST

Air tube

F14102

Plate

O–ring

Connector No.2

SST

Air tube

–

SUSPENSION AND AXLE

ELECTRONIC MODULATED AIR SUSPENSION

SA–153

3149

ELECTRONIC MODULATED AIR SUSPENSION

PRECAUTION

1.

WHEN LIFTING UP VEHICLE

(a)

When jacking up or lifting up, stop operation of the air sus-
pension control system by pressing the height control
mode select switch.

2.

DISCONNECTION AND CONNECTION OF HEIGHT
CONTROL TUBE

NOTICE:

Disconnection and connection of the height control
tube should be performed by hand to prevent foreign
objects from entering.

Never damage the height control tube.

(a)

Disconnect the height control tube.
(1)

Pinch ”A” of the connector No. 1 and pull out from
the housing.

(2)

Set the SST to the tube.

SST

09730–00010

(3)

Insert SST into the housing to expand the claw of
the connector No.2 in the housing.

(4)

Pull out the tube with SST inserted.

NOTICE:
Do not pull on the tube with excessive force.

F19817

O–ring

Plate

F19818

Cardboard

O–ring

Plate

F19819

Connector No.2

F14103

Housing

Claw

Connector No. 1

Air tube

Port (Hole)

SA–154

–

SUSPENSION AND AXLE

ELECTRONIC MODULATED AIR SUSPENSION

3150

(5)

Insert a screwdriver into the circular hole on the
housing, and remove the connector No.2, the 2 O–
rings and the plate from the housing.

HINT:
The O–rings, plate and connector No.2 are non–reusable parts.

(b)

Install 2 O–rings and the plate.
(1)

Apply MP grease to 2 new O–rings and plate and
install them to the straight tube or an equivalent.

NOTICE:
Install the plate between the O–rings.
Keep foreign matter from adhering to the O–rings and the
height control tube in order to prevent air leaks.

(2)

Insert the tube on which the 2 O–rings and plate are
installed into the housing, and then push it in lightly
with a piece of rolled up cardboard.

(3)

Push the connector No.2 into the housing to where
a clicking sound is heard.

(c)

Install the height control tube.
(1)

Push the tube and connector No.1 into the housing
to where a clicking sound is heard.

NOTICE:

The port (hole) of the housing should be set in the
position 90

°

 from the claws of connector No. 1.

Pull the tube lightly to make sure that it is securely
connected.

–

SUSPENSION AND AXLE

ELECTRONIC MODULATED AIR SUSPENSION

SA–155

3151

Prevent foreign matter from being attached to the O–
rings and height control tube. Failure to do so may
cause air leakage.

SA2D0–01

F16824

HIGH

NORMAL
LOW

SA–156

–

SUSPENSION AND AXLE

ELECTRONIC MODULATED AIR SUSPENSION

3152

ADJUSTMENT

1.

ADJUST STANDARD VEHICLE HEIGHT

(a)

Release the parking brake and stabilize the suspensions by pushing up and down on the corners of
the vehicle.

(b)

Place the shift lever into the ”N” position and settle the tires by moving the vehicle back and forth.

(c)

Start the engine.

(d)

On the height control switch, first press ”HIGH” to raise the vehicle height, and then change the switch
to ”LOW” to lower it. Perform this operation one more time.

NOTICE:
Make sure to release the parking brake and move the shift lever into the ”N” position.
2.

INSPECT TIRE (See page 

SA–3

)

3.

MEASURE VEHICLE HEIGHT (See page 

SA–4

)

4.

OPERATE HEIGHT CONTROL SWITCH AND CHECK
VEHICLE HEIGHT CHANGE

(a)

Start the engine and change the height control switch
from the NORMAL position to the HIGH and LOW posi-
tions.
Check the time until the height adjustment is completed
and the amount of change in vehicle height.
Adjustment time

From operation of height control switch

to start of compressor.

Approx. 2 sec.

From start of compressor to completion

of height adjustment.

Approx. 20 sec.

Amount of change in vehicle height
HIGH position: 40 mm (1.57 in.)
LOW position:
4WD models: –30 mm (–1.18 in.)
2WD models: –15 mm (–0.59 in.)