Page 990 of 1082
13-74610-00
2. OPERATION
When the driver turns the steering wheel, a torque is generated and the torque sensor and the steering
angle sensor in the EPS system detect the rotation of the steering column to run the electric motor. At
this time, the worm gear connected to the motor drives the helical gear mounted to the steering column
to generate the assist torque for the steering column. This allows the driver to operate the steering wheel
easier.Output torque = 1) Steering force (manual torque) + 2) Assist torque
Page 996 of 1082

14-8
If weight is not equally distributed around the wheel, unbalance centrifugal force by the wheel rotation
produces vibration. As the centrifugal force is produced proportional to the square of the rotating speed,
the wheel weight should be balanced even at high speed. There are two types of the tire and wheel
balancing: static and dynamic. Abnormal vibration may also occur due to unbalanced rigidity or size of
tires.
1) Static Balance
When the free rotation of the wheel is
allowed, the heavier part is stopped on the
bottom if the wheel weight is unbalanced and
this is called "Static Unbalance". Also, the
state at which tire's stop position is not same
is called "Static Balance" when the wheel is
rotated again. If the part A is heavier as
shown in the figure 1, add the balance weight
of a weight corresponding to unbalanced
weight from B to A to maintain the static
balance. If the static balance is not
maintained, tramping, up and down vibration
of the wheels, occurs.
2) Dynamic Balance
The static unbalance of the wheel creates
the vibration in the vertical direction, but the
dynamic unbalance creates the vibration in
the lateral direction. As shown in the figure
2 (a), if two parts, (2) and (3), are heavier
when the wheels are under the static
balance condition, dynamic unbalance is
created, resulting in shimmy, left and right
vibration of the wheels, and the torque Fxa
is applied in the axial direction. To correct
the dynamic unbalance, add the balance
weight of a same weight for two points of
the circumference of the rim, A and B, as
shown in the figure 2 (b), and apply the
torque in the opposite direction to the
torque Fxa to offset in order to ensure
smooth rotation of the wheel.
Center
A
B
a
a
Fxa
Fxa F
F
A
B
(a)(b)
[Figure 1]
[Figure 2]
3. WHEEL BALANCE
Page 998 of 1082
15-4
4. Transaxle mounting (Rear)3. Rear mounting (LH & RH)
2. Front mounting (LH & RH)
1. Transaxle mounting (Front)
2. TIGHTENING TORQUE
Bolt (17 mm) /
Nut (17 mm)68.6 to 88.2 Nm
Bolt (17 mm)88.2 to 107.8 Nm
Bolt (17 mm)88.2 to 107.8 Nm
2 Bracket mounting
bolts (17 mm)88.2 to 107.8 Nm
Bolt (14 mm) /
Nut (14 mm)68.6 to 88.2 Nm
3 Bolts (14 mm)29.4 to 49.0 Nm
Front sub frame - based on 4WD ▶
Page 1002 of 1082
15-8
The front sub frame consists of 4 body bush mountings(A) and 2 engine bush mountings(B) which
reduce the vibration from the powertrain and road, and also control the torque. And the two engine bush
mountings consist of an engine mounting which supports the engine powertrain and a transmission
mounting.
The engine side and transmission side mountings are rubber mountings with brackets and insulators
while the body mounting is a rubber bush mounting which is fitted to the frame.
Installation of front sub
frame (4WD)The installation of the front sub frame is the same for both automatic
transmission and manual transmission. For 4WD, the PTU and the
propeller shaft are installed.
Installation of front sub
frame (2WD)The installation of the front sub frame is the same for both automatic
transmission and manual transmission.
PTU assembly
Page 1040 of 1082
04-37340-00
1. SPECIFICATIONS
2. CAUTIONS WHEN WORKING
Wear clean work clothes and gloves.
Replace and wash the gloves frequently.
Any unauthorized modification or operational test is not allowed since the sunroof motor and control
unit are preset at the factory.
You can use basic tools, e.g. a 25T/10T star screwdriver, flat-bladed and cross-tip screwdrivers. Do
not use any similar tool.
Take care not to drop the sunroof assembly when removing it and do not keep it right up. 1.
2.
3.
4.
5.
Operating voltage 9 to 16 V
Operating current (open & close) Max. 6 A
At no load Approx. 3 A
Leakage current Max. 1 mA or less
Roof motor operating speed
(at opening and closing)1.4 ± 0.5 sec./100 mm
Motor overload stop conditionsCurrent for 25 A or higher and torque (load) for 7.5 Nm
or higher
2-step opening amount1st step sliding open: 370 ± 5 mm
2nd step sliding open: 450 ± 5 mm
Vertical/horizontal tolerance for
sunroof glass panel± 2 mm