Description
Item
Steering wheel in straight ahead position
1
Steering column lock locked
2
Steering column lock unlocked
3
Turn the steering wheel to the 90° left
position
4Description
Item
Turn the steering wheel to the 90° right
position
5
Turn the steering wheel to the left-hand
end position
6
Turn the steering wheel to the right-hand
end position
7
E88971
6
3
12
4
5
78
9
11
10
Description
Item
3, 4, 5-door body style
1
Wagon body style
2Description
Item
Sports utility vehicle body style
3
Coupe body style
4
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Description
Item
Turn the component clockwise through
45°
1
Turn the component counterclockwise
through 45°
2
Turn the component clockwise through
90°
3
Turn the component counterclockwise
through 90°
4
Turn the component clockwise through
180°
5Description
Item
Turn the component counterclockwise
through 180°
6
Turn the component clockwise through 2
complete turns
7
Turn the component counterclockwise
through 2 complete turns
8
Steering Wheel Symbols
Steering wheel symbols are used to provide further
information to a required steering wheel position
or steering column lock status.
E123751
3
4
12
56
7
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Standard Workshop Practices
Vehicle in Workshop
When working on a vehicle in the workshop always
make sure that:
– the parking brake is applied or the wheels aresecurely chocked to prevent the vehicle moving
forwards or backwards.
– the key is removed from key operated hood locks before any work is carried out around the
front of the vehicle.
– if the engine is to be run, there is adequate ventilation, or an extraction hose to remove
exhaust fumes.
– there is adequate room to raise the vehicle and remove the wheels, if necessary.
– fender covers are always fitted if any work is to be carried out in the engine compartment.
– the battery is disconnected if working on the engine, underneath the vehicle, or if the vehicle
is raised.
CAUTION: When electric arc welding on a
vehicle, always disconnect the generator
wiring to prevent the possibility of a surge
of current causing damage to the internal
components of the generator.
– if using welding equipment on the vehicle, a suitable fire extinguisher is readily available.
Towing the Vehicle
WARNING: When the vehicle is being
towed, the ignition switch must be in
position II (steering lock released and
warning lamps illuminated). Only then will
the steering, turn signal lamps, horn and
stop lamps be operational. Failure to follow
these instructions may result in personal
injury.
NOTE: The removable towing eye (if equipped),
has a left-hand thread and must be fully tightened
before towing can commence.
When towing is necessary, the vehicle towing eyes
should be used. The rope must be securely
fastened to the towing eyes and must also be
attached to the other vehicle such that the rope will
not foul the bodywork.
When a vehicle with automatic transmission is
towed, the gear selector must be in position N (Neutral). Never tow a vehicle with automatic
transmission at a speed greater than 30 mph (50
km/h) or for a distance greater than 30 miles (50
km). If it is necessary to tow the vehicle a greater
distance, the drive wheels must be lifted clear off
the ground.
Alternatively the vehicle can be transported on a
low loader or a trailer.
Connecting a Slave Battery Using
Jumper Cables
WARNING: If the slave battery has recently
been charged and is gassing, cover the
vent plugs or covers with a damp cloth to
reduce the risk of explosion should arcing
occur when connecting the jumper cables.
Failure to follow these instructions may
result in personal injury.
CAUTIONS:
A discharged battery condition may have
been caused by an electrical short circuit.
If this condition exists there will be an
apparently live circuit on the vehicle even
when all normal circuits are switched off.
This can cause arcing when the jumper
cables are connected.
While it is not recommended that the
vehicle is jump started, it is recognized
that this may occasionally be the only
practical way to mobilize a vehicle. In such
an instance, the discharged battery must
be recharged immediately after jump
starting to avoid permanent damage.
– Always make sure that the jumper cables are adequate for the task. Heavy duty cables must
be used.
– Always make sure that the slave battery is of the same voltage as the vehicle battery. The
batteries must be connected in parallel.
– Always make sure that switched electric circuits are switched off before connecting jumper
cables. This reduces the risk of arcing occurring
when the final connection is made.
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Power assisted steering operating conditionDriving
Parking
Cornering condition
Driving straight ahead
Steering at a steering
lock stop
Steering central/slightly
off center
REFER to NVH
concerns from other
components column D
REFER to NVH
concerns from other
components column C
REFER to NVH
concerns from other
components column B
REFER to NVH
concerns from other
components column A
NVH concerns from other components
NVH concerns from other condition (column A to D) DCBA
Driving Condition
Noise
XOXX
Drive off, stop driving and slow cornering
over uneven roads
Pedal box knocking
XOOX
Drive off, driving and cornering
Stabilizer bar link
knocking
X
X
Drive off, driving, acceleration and
deceleration
Engine support insu-
lator knocking
OOXX
Engine on, activate switch for air condi-
tioning
Air conditioning
knocking
XO
X
Drive off, driving, cornering, acceleration
and deceleration
Suspension knocking
(Subframe, Springs)
X
OX
Drive off, driving, cornering, acceleration
and deceleration
Constant velocity (CV)
joint knocking
X
O
Deceleration, acceleration and single
impact
Washer bottle
XO
O
All driving conditions
Loose suspension
bolts
XXXX
All driving conditions. Engine rpm
dependant
Instrument panel
rattle/squeak
• X = Noise will most likely occur in this operating condition.
• O = Noise can possibly occur in this operating condition.
• Blank = Noise is unlikely to occur in this operating condition.
Step 2: Check for steering system NVH concerns
according to operation condition described at the
customer interview.
Power assisted steering operating condition
Vehicle stationary with engine off
Driving
Parking
Steering at a
steering lock stop
Steering central/
slightly off centre
Steering at a
steering lock
stop
Steering
central/slightly
off center
Steering at a
steering lock
stop
Steering
central/
slightly off
center
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Power assisted steering operating conditionVehicle stationary with engine off
Driving
Parking
REFER to steering
system NVH
concerns column F
REFER to steering
system NVH
concerns column E
REFER to
steering system
NVH concerns
column D
REFER to
steering
system NVH
concerns
column C
REFER to
steering
system NVH
concerns
column B
REFER to
steering
system NVH
concerns
column A
Steering system NVH concerns
Steering System operation condition (column A to F) FEDCBA
Driving condition
Noise
OX
Parking between lock stops, at engine idle and
also increased engine speed
Moan
XXOO
Driving, high engine rpm. Must be present from
new
Whine
OOXX
a) Parking between lock stops. Must be present
from new
Hiss
X
b) Holding steering wheel against lock stops. Must
be present from new
X
X
a) Parking at lock stop. Must be present from new
Lock stop impact
knock
X
b) Parking between lock stops, engine OFF. Must
be present from new
Mechanical knock
(power assisted
steering (PAS) off)
X
c) Parking between lock stops, engine ON (ball
joint knock)
Mechanical Knock
(PAS on)
X
d) Parking into lock stop and release (vehicle with
hydraulic power assisted steering (HPAS) only,
not for vehicles with electro-hydraulic power
assisted steering (EHPAS))
Hammer knock
XO
e) Driving, cobble stones, rough road (clonk). Must
be present from new
Hydraulic knock
(clonk)
XXXOXX
f) Parking, driving. cobble stones and rough roads
Column knock
OXX
O
Mainly driving on rough roads
Column rattle
X
Steering left and right at high frequency. Must be
present from new
Toc-toc
XO
X
When turning steering wheel
Grinding
OX
At engine start, low temperatures below -10°C
only
Zip
• X = Noise will most likely occur in this operating condition.
• O = Noise can possibly occur in this operating condition.
• Blank = Noise is unlikely to occur in this operating condition.
Step 3: According to each identified operating
condition (Column A, B, C, D, E, F), check each possible Steering System NVH concern with the
detail symptom charts below.
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Action
Possible Sources
Symptom
CHECK the installation and
potential damage of the floor
seal.
Floor seal.
NOTE:
Engine speed at idle
turning the steering wheel slowly
lock to lock.
Power steering system hiss noise
– a high frequency, continuous
rush or swish noise like escaping
air from a balloon. Hiss occurs
while turning between the
steering lock stops, all steering
angles. Noise does not change
with engine rpm and is worse at
high operating temperatures. Certain amount of noise level
acceptable, not a safety critical
item.
Power steering gear valve
design.
Certain amount of noise level
acceptable, not a safety critical
item.
Power steering system hydraulic
design.
Certain amount of noise level
acceptable, not a safety critical
item.
Power steering pump pressure
relief valve.
NOTE:
Engine speed at idle
holding the steering wheel
against a steering lock for three
seconds. Do not hold for more
than five seconds.
Power steering system hiss noise
– a continuous noise like
escaping air occurs while holding
the steering against a steering
lock stop.
Power Steering Lock Stop Impact Knock
Noise
Test Condition
Listen for steering knock noise with the engine
speed at idle in the following test conditions (noise
also apparent with engine off). 1. Turn the steering wheel to the left-hand and
right-hand steering locks and listen for the
impact noise.
Action
Possible Sources
Symptom
Certain amount of noise level
acceptable, not a safety critical
item.
Power steering gear mechanical
noise, metal to metal at end of
steering travel.
Power steering system knock
noise – a heavy loud sound like
a knock on a door that occurs in
parking condition when hitting the
lock stop.
Power Steering Mechanical Knock Noise
(PAS off)
Test Condition
Listen for steering knock noise with the engine off
in the following test conditions (no power assist). 1. Turn the steering wheel 90 degrees to the right,
hold and then quickly release.
2. Turn the steering wheel 90 degrees to the left, hold and then quickly release.
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Action
Possible Sources
Symptom
Certain amount of noise level
acceptable, not a safety critical
item.
Power steering system knock
noise – a damped, metallic knock
noise which only occurs at
steering condition with engine off
(very high efforts).
Power steering system knock
noise – a heavy loud repeating
sound like a knock on a door that
occurs in several driving and
steering conditions.
Certain amount of noise level
acceptable, not a safety critical
item.
Tolerances in the steering gear
components.
Power Steering Mechanical Knock Noise
(PAS on)
Test Condition
Listen for steering knock noise with the engine
speed at idle in the following test conditions (power
assist). 1. Turn the steering wheel to a steering lock and
return to center quickly.
2. Turn the steering wheel 90 degrees to the left and then 90 degrees to the right quickly.
Action
Possible Sources
Symptom
REFER to Steering System.
REFER to:Steering System (211-
00 Steering System - General
Information, Diagnosis and
Testing).
Worn tie-rod ball joints (inner and
outer ball joints).
Power steering system knock
noise – clear knock noise from
steering gear linkage area.
Power Steering Hammer Knock (Hydraulic)
Noise
Test Condition
Listen for steering knock noise with the engine
speed at idle in the following test conditions (for vehicles with hydraulic power assisted steering
only, not electro-hydraulic power steering).
1. Turn the steering wheel to a steering lock
position and return quickly.
Action
Possible Sources
Symptom
Certain amount of noise level
acceptable, not a safety critical
item.
Hydraulic noise created by pres-
sure impulses.
Power steering system knock
noise – loud, metallic sound if
hitting the suspension cross-
member with a hammer (sounds
like metallic noise but is created
by pressure impulse in gear and
return line).
Power Steering Hydraulic Knock/Clonk
Noise
Test Condition
Listen for steering knock/clonk noise in the
following test conditions with the windows closed. 1. Drive over cobbled roads at low speed 10-30
km/h (6-20 mph) with and without turning.
2. Drive over straight tar strips road rails or 25 mm tall harshness strips at low speed 10-30 km/h
(6-20 mph) both driving straight and with
moderate turning.
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Action
Possible Sources
Symptom
Certain amount of noise level
acceptable, not a safety critical
item.
Steering gear (design tolerance
in steering rack).
Power steering system toc-toc
noise – a metallic noise created
when changing direction of
steering wheel rotation during
parking manoeuvre or at stand-
still.
Power Steering Grinding Noise
Test Condition
Listen for steering grinding noise with the engine
speed at idle and the vehicle parked, automatic transmission in "P" (PARK) or manual transmission
in neutral and the windows closed.
1. Slowly turn the steering wheel from lock to lock.
2. Tilt and extend the steering column in various
positions and slowly turn the steering wheel
from lock to lock.
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