wheel MITSUBISHI LANCER EVOLUTION VI 1999 Repair Manual

SRS – Air Bag Modules and Clock Spring52B-28
BSTEERING WHEEL REMOVAL
CCLOCK SPRING REMOVAL
Caution
The removed clock spring should be stored in a clean,
dry place.
DAIR BAG MODULE REMOVAL
(FRONT PASSENGER’S SIDE)
Caution
The removed air bag module should be stored in a clean,
dry place with the pad cover face up.
INSTALLATION SERVICE POINTS
APRE-INSTALLATION INSPECTION
1. When installing the new air bag modules and clock spring,
refer to “INSPECTION”.
Caution
Dispose of air bag modules only according to the
specified procedure. (Refer to P.52B-32.)
2. Connect the battery (–) terminal.
3. Connect the MUT-II to the diagnosis connector.
Caution
Make certain that the ignition switch is LOCK (OFF)
when the MUT-II is connected or disconnected.
4. Turn the ignition key to the “ON” position.
5. Conduct self-diagnosis using the MUT-II to ensure entire
SRS operates properly, except open circuit of air bag
modules.
6. Turn the ignition key to the LOCK (OFF) position,
disconnect the negative battery cable and tape the
terminal.
Caution
Wait at least 60 seconds after disconnecting the
battery cable before doing any further work.
(Refer to P.52B-3.)
MB990803

SRS – Air Bag Modules and Clock Spring52B-29
BCLOCK SPRING INSTALLATION
Align the mating marks of the clock spring and, after turning
the front wheels to the straight-ahead position, install the
clock spring to the column switch.
Mating Mark Alignment
Turn the clock spring clockwise fully, and then turn back it
approx. 3 4/5 turns counterclockwise to align the mating marks.
Caution
If the clock spring’s mating marks are not properly aligned,
the steering wheel may not be completely rotational during
a turn, or the flat cable within the clock spring may be
severed, obstructing normal operation of the SRS and
possibly leading to serious injury to the vehicle’s driver.
CSTEERING WHEEL INSTALLATION
1. Before installation the steering wheel, be sure to first
turn the vehicle’s front wheels to the straight-ahead
position and align the mating marks of the clock spring.
Caution
Be sure when installing the steering wheel, that the
harness of the clock spring does not become caught
or tangled.
2. After clamping, turn the steering wheel all the way in
both directions to confirm that steering is normal.
DPOST-INSTALLATION INSPECTION
1. Turn the steering wheel lightly to the left and right to
check if it can be operated properly without any
abnormality.
2. Reconnect the negative battery terminal.
3. Turn the ignition key to the “ON” position.
4. Does the “SRS” warning lamp illuminate for about 7
seconds, and then remain extinguished for at least 5
seconds after turning OFF?
5. If yes, SRS system is functioning properly.
If no, consult page 52B-6.
Mating marks
SRS warning lamp

SRS – Air Bag Modules and Clock Spring52B-30
INSPECTION
AIR BAG MODULE CHECK
If any improper part is found during the following inspection,
replace the air bag modules with a new one.
Dispose the old one according to the specified procedure.
(Refer to P.52B-32.)
Caution
Never attempt to measure the circuit resistance of the
air bag modules (squib) even if you are using the specified
tester. If the circuit resistance is measured with a tester,
accidental air bags deployment will result in serious
personal injury.
1. Check pad cover for dents, cracks or deformation.
2. Check connectors for damage, terminals for deformation,
and harness for binds.
3. Check air bag inflator case for dents, cracks or
deformation.
4. Install the air bag module to steering wheel to check
fit or alignment with the wheel.
Caution
If dents, cracks, deformation, or rust are discovered in
the air bag module, replace it with a new one.
Dispose of the old one according to the specified
procedure. (Refer to P.52B-32.)
CLOCK SPRING CHECK
If, as result of following checks, even one abnormal point
is discovered, replace the clock spring with a new one.
1. Check connectors and protective tube for damage, and
terminals for deformation.
2. Visually check the case for damage.

Inflator case
Connector

Inflator case
Connector
Protective tube
Case
Protective tube

SRS – Air Bag Module Disposal Procedures52B-37
(2) Connect two wires, each six meters or longer, to the
two leads of SRS air bag adapter harness B side>, and cover the connections with insulation tape.
The other ends of the two wires should be connected
to each other (short-circuited), to prevent sudden
unexpected deployment of the air bag module.
(3) Take the SRS air bag adapter harness B that is
connected to the wires, pass it beneath the old tyre
wheel assembly, and connect it to the air bag module.
(4) Pass the thick wire through the air bag module
mounting hole, and then secure the air bag module
to an old tyre with a wheel in it so that the pad on
the module is facing upwards.
Caution
Leave some space below the wheel for the adaptor
harness. If there is no space, the reaction when
the air bag deploys could damage the adaptor
harness.
(5) Place three old tyres with no wheels on top of the
tyre secured to the air bag module.
Two wires
SRS air bag
adapter
harness B
MR203491 or
MB628919Connection
6 m
long or
more
Insulation tape
Air bag module
Deployment wire
harness
Tyres without wheels
Deployment wire harness

SRS – Air Bag Module Disposal Procedures52B-39

(1) Remove the air bag module from the vehicle.
(Refer to P.52B-27.)
Caution
The connector of the front passenger’s side air
bag module is so constructed that the positive
and negative terminals are automatically
short-circuited when it is disconnected to prevent
an accidental deployment of the air bag resulting
from static electricity generation. Nevertheless,
to eliminate the slightest possibility of an
accidental deployment, always bear the following
in mind; the air bag module should be stored on
a flat surface and placed so that the pad cover
face up. Anything should not be placed on top
of it.
(2) Connect two wires, each six meters or longer, to the
two leads of SRS air bag adapter harness A and
cover the connections with insulation tape. The other
ends of the two wires should be connected to each
other (short-circuited), to prevent sudden unexpected
deployment of the air bag module.
(3) Connect the deployment wires to the SRS air bag
adaptor harness A, pass it beneath the tyre, and
wheel assembly, and connect it to the air bag module.
(4) Pass the thick wires into the hole of the air bag module
bracket, and secure it to the wheel of the old tyre
with wheel (4 locations), with the air bag facing
upwards.
Caution
1) Leave some space below the wheel for the
deployment wires.
If there is no space, the reaction of the air
bag deployment could result in damage of
the adaptor harness.
2) While deployment takes place, do not have
the connector of the SRS air bag adaptor
harness A inserted between the tyres.
SRS air bag
adapter
harness A
MB686560Connection
6 m or
longer
Two wires Insulation
tape
Deployment wire
Air bag module

SRS – Air Bag Module Disposal ProceduresSRS – Air Bag Module Disposal Procedures52B-40
(5) Place three old tyres, without wheels, on top of the
tyre secured to the air bag module, and secure all
tyres with ropes (4 locations).
NOTE
The front passenger’s side air bag is larger in capacity
than the driver’s side air bag when deployed. For
this reason, it is necessary to tie up all tyres together
with rope.
(6) At a location as far away from the air bag module
as possible, and from a shielded position, disconnect
the two connected wires from each other, and connect
them to the two terminals of the battery (which has
been removed from the vehicle) to deploy the air
bag.
Caution
1) Before deployment, check carefully to be sure
that no one is nearby.
2) The inflator will be quite hot immediately
following the deployment, so wait at least 30
minutes to allow it to cool before attempting
to handle it. Although not poisonous, do not
inhale gas from air bag deployment. See
Deployed Air Bag Module Disposal
Procedures (P.52B-40) for post-deployment
handling instructions.
3) If the air bag fails to deploy when the
procedures above are followed, do not go near
the module. Contact your local distributor.
(7) After deployment, dispose of the air bag module
according to the Deployed Air Bag Module Disposal
Procedures.
DEPLOYED AIR BAG MODULE DISPOSAL
PROCEDURES
After deployment, the air bag module should be disposed
of in the same manner as any other scrap parts, adhering
to local laws and/or legislation that may be in force except
that the following points should be carefully noted during
disposal.
1. The inflator will be quite hot immediately following
deployment, so wait at least 30 minutes to allow it cool
before attempting to handle it.
2. Do not put water or oil on the air bag after deployment.
Tyres without wheels
Deployment wire
harness
Deployment wire
harness

CHASSIS ELECTRICAL – Ignition Switch and Immobilizer System54-19
IGNITION SWITCH AND IMMOBILIZER SYSTEM
Caution: SRS
Before removal of air bag module and clock spring, refer to GROUP 52B – SRS Service Precautions
and Air Bag Module and Clock Spring.
REMOVAL AND INSTALLATION
4
58 6
109 7
2
13


3 4
Immobilizer-ECU removal steps
1. Hood lock release handle
2. Driver‘s side lower cover

Radio and tape player vehicles>

Heater control assembly vehicles>
3. Immobilizer-ECUIgnition switch and ignition key
ring antenna removal steps
1. Hood lock release handle
2. Driver‘s side lower cover
4. Steering wheel
5. Column cover, lower
6. Column cover, upper
7. Column switch
8. Ignition key ring antenna
A9. Steering lock cylinder
10. Ignition switch

CHASSIS ELECTRICAL – Combination Meters54-24
TROUBLESHOOTING
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptomInspection
procedureReference
page
Speedometer does not work.154-24
Tachometer does not work.254-25
INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
Inspection Procedure 1
Speedometer does not work.
Probable cause
Examine the diagnosis codes registered in the engine-ECU. If no wheel speed
sensor-relating diagnosis code has been output, the wheel speed sensors are in order.
Malfunction of vehicle speed sensor

Malfunction of speedometer

Malfunction of harness or connector

Malfunction of relevant ECU
Disconnect the combination meter con-
nectors B-08 or B-09 and measure at
the harness sides.
1. Continuity between the terminal
No.11 and earth
OK: Continuity
2. Voltage between terminal No.51 and
earth.
OK: 4.7 V or more
3. Voltage between the terminal No.22
and earth
OK: System voltage1. NG
OK
Replace the speedometer.YES
Vehicle speed sensor circuit system
inspection (Refer to Inspection
Procedure 3 on P.54-26.)
OK
Check the following connectors.
B-09, B-50NG
Repair
OK
Check trouble symptom.
Check the harness between the body
earth and combination meter, and repair
if necessary.NG
2. NGCheck the following connectors.
B-08, B-64, A-19NG
Repair
OK
Check trouble symptom.
Check the harness between the com-
bination meter and the vehicle speed
sensor, repair if necessary.NG
3. NGCheck the following connectors.
B-09, B-49, B-75, B-73NG
Repair
OK
Check trouble symptom.
Check the harness between the power
supply and combination meter, and
repair if necessary.NG
MUT-II Self-Diag code
Is the diagnosis code 24 relating to MPI
system output?

CHASSIS ELECTRICAL – Combination MetersCHASSIS ELECTRICAL – Combination Meters54-27
ON-VEHICLE SERVICE
SPEEDOMETER CHECK
1. Adjust the pressure of the tyres to the specified level.
2. Set the vehicle onto a speedometer tester and use wheel
chocks to hold the rear wheels.
3. Pull the parking brake lever firmly.
4. To prevent the front wheel from moving from side to side,
attach tension bars to the tie-down hook, and secure
both ends to anchor plates.
5. To prevent the vehicles from starting, attach a chain or
wire to the rear towing hook, and secure the other end
of the chain or wire firmly to an unmovable body.
6. Check if the speedometer indication range is within the
standard values and if the pointer fluctuation is within
the limits.
Caution
Do not operate the clutch suddenly. Do not
increase/decrease speed rapidly while testing.
Standard values:
Vehicle speed km/hSpeedometer indication
allowable errors km/h
4037 – 45
8075 – 88
120113 – 132
160150 – 176
Limit: Pointer fluctuation
(at vehicle speeds of higher than 35 km/h) ±3 km/h
TACHOMETER CHECK
1. Insert a paper clip in the engine speed detection connector
from the harness side, and attach the engine
speedometer.
2. Compare the readings of the engine speedometer and
the tachometer at every engine speed, and check if the
variations are within the standard values.
Standard values:
700 r/min : ±100 r/min
3,000
*1 r/min : ±150 r/min
3,000*2 r/min : +225 to –100 r/min
5,000*1 r/min : ±250 r/min
5,000*2 r/min : +325 to –125 r/min
6,000*1 r/min : ±300 r/min
7,000*2 r/min : +400 to –100 r/min
8,000*3 r/min : +400 to 0 r/min
NOTE
*1: Tachometer measurable up to 8,000 r/min
*2: Tachometer measurable up to 9,000 r/min and one measurable up to 10,000 r/min
*3: Tachometer measureble up to 10,000 r/min
Wheel chocks
Tension bar
Tie-down hook
Front
Anchor plate
Engine speed detection
connector