Toyota Sequoia (2005). Manual - part 791

F19820

HIGH

NORMAL
LOW

–

SUSPENSION AND AXLE

ELECTRONIC MODULATED AIR SUSPENSION

SA–157

3153

(b)

While adjusting vehicle height in the HIGH position, start
the engine and change the height control switch from the
HIGH position to the NORM position.
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 open of exhaust valve.

Approx. 2 sec.

From open of exhaust valve to completion

of height adjustment.

Approx. 30 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.)

F16825

Front

SA–158

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SUSPENSION AND AXLE

ELECTRONIC MODULATED AIR SUSPENSION

3154

5.

CHECK CONNECTIONS OF TUBES FOR AIR LEAK-
AGE

(a)

Set the height control switch in the HIGH position and
raise the vehicle height.

(b)

Stop the engine.

(c)

Apply soapy water to the connections of the tubes and
check if there is any air leakage.

6.

ADJUST VEHICLE HEIGHT

NOTICE:
While adjusting vehicle height, do not put anyone or any-
thing on or in the vehicle as it will affect vehicle height.
(a)

Suspend the vehicle height control by pressing the height
control mode select switch.

(b)

Put the vehicle on a level surface.

F19904

C

D

F16848

F16826

Lock Nut

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SUSPENSION AND AXLE

ELECTRONIC MODULATED AIR SUSPENSION

SA–159

3155

(c)

Measure the vehicle height (C – D measurement) on the
right side and left side.
Standard vehicle height value: See page 

SA–4

(d)

If the value in (c) differs from the vehicle height (C – D
measurement), adjust it by following the procedures be-
low:
(1)

Loosen the nut.

(2)

Move the height control sensor link back and forth
along the slotted hole of the bracket.

HINT:
Move the link toward the front of the vehicle to raise vehicle
height. Move the link toward the rear of the vehicle to lower ve-
hicle height. Every 1 mm (0.039 in.) change in the installation
position of the link causes vehicle height to change by approxi-
mately 2 mm (0.079 in.).

(3)

Tighten the nut.

Torque: 5.4 N·m (55 kgf·cm, 48 in.·lbf)

(e)

If the vehicle height cannot be adjusted by performing (d),
adjust it again by following the procedures below.
(1)

Loosen the 2 lock nuts of the height control sensor
link.

(2)

Adjust the vehicle height to the vehicle height (C –
D measurement) by turning the link.

HINT:
Extend the link to raise vehicle height. Shorten the link to lower
vehicle height. Every 1 turn of the link causes vehicle height to
change by approximately 4 mm (0.157 in.).

(3)

Tighten the 2 lock nuts.

Torque: 5.4 N·m (55 kgf·cm, 48 in.·lbf)

F16827

A

A

SA–160

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SUSPENSION AND AXLE

ELECTRONIC MODULATED AIR SUSPENSION

3156

(f)

Check that the lengths of the screw parts, ”A” in the il-
lustration, are within the standard values.
Standard length: 6.5 to 15.0 mm (0.26 to 0.59 in.)

(g)

Change the vehicle height. (From the normal position to
the high position, and from the high position to the normal
position)

(h)

Measure the vehicle height (C – D measurement) on the
right side and left side.

(i)

Check if the vehicle height (C – D measurement) is within
the specified range.

HINT:
If the values are outside the standard, perform the procedures
from (d) to (i) again.