1999 MITSUBISHI LANCER EVOLUTION VI maintenance

SRS – SRS Maintenance52B-16
SRS COMPONENT VISUAL CHECK
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.)
SRS CONTROL UNIT (SRS-ECU)
1. Check SRS-ECU case and brackets for dents, cracks,
deformation or rust.
Caution
The SRS may not activate if the SRS-ECU is not
installed properly, which could result in serious injury
or death to the vehicle’s driver or front passenger.
2. Check connector for damage, and terminals for
deformation or rust.
Replace SRS-ECU if it fails visual check.
(Refer to P.52B-24.)
AIR BAG MODULES, STEERING WHEEL AND CLOCK
SPRING
1. Remove the air bag modules, steering wheel and clock
spring. (Refer to P.52B-25.)
Caution
The removed air bag modules should be stored in
a clean, dry place with the pad cover face up.
2. Check pad cover for dents, cracks or deformation.
Insulating tape
Battery
Battery (–) cable
SRS-ECU
Pad cover


Pad cover

SRS – SRS Maintenance52B-17
3. Check connector for damage, terminals deformities, and
harness for binds.
4. Check air bag inflator case for dents, cracks or deformities.
5. Check harness and connectors for damage, and terminals
for deformation.
6. Check clock spring connectors and protective tube for
damage, and terminals for deformation.
7. Visually check the clock spring case for damage.
8. Align the mating marks of the clock spring and, after
turning the vehicle’s front wheels to 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 mark is 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 or front passenger.
9. Install the steering column covers, steering wheel and
the air bag module.
10. Check steering wheel for noise, binds of difficult operation.
11. Check steering wheel for excessive free play.
REPLACE ANY VISUALLY INSPECTED PART IF IT
FAILS THAT INSPECTION. (Refer to P.52B-25.)
Caution
The SRS may not activate if any of the above
components is not installed properly, which could
result in serious injury or death to the vehicle’s driver
or front passenger.
Inflator case
Connector

Inflator case
Connector
Protective tube
Case
Mating marksProtective tube

SRS – SRS Maintenance52B-18
BODY WIRING HARNESS
* Body wiring harness
NOTE
*: Vehicles with front passenger’s air bag
1. Check connector for poor connection.
2. Check harnesses for binds, connectors for damage, and
terminals for deformation.
REPLACE ANY CONNECTORS OR HARNESS THAT
FAIL THE VISUAL INSPECTION. (Refer to P.52B-3.)
Caution
The SRS may not activate if SRS harnesses or
connectors are damaged or improperly connected,
which could result in serious injury or death to the
vehicle’s driver or front passenger.
POST-INSTALLATION INSPECTION
Reconnect the negative battery terminal. Turn the ignition
key to the “ON” position. Does the SRS warning lamp illuminate
for about 7 seconds, turn off and then remain extinguished
for at least 5 seconds? If yes, SRS system is functioning
properly. If no, consult page 52B-6.
SRS warning lamp

SRS – Post-collision Diagnosis / Individual Component Service52B-22
Steering wheel, steering column and intermediate joint
1. Check wiring harness (built into steering wheel) and
connectors for damage, and terminals for deformation.
2. Install air bag module to check fit or alignment with steering
wheel.
3. Check steering wheel for noise, binds or difficult operation
and excessive free play.
Harness connector (body wiring harness)
Check harnesses for binding, connectors for damage, poor
connection, and terminals for deformation. (Refer to P.52B-18.)
INDIVIDUAL COMPONENT SERVICE
If the SRS components are to be removed or replaced as a result of maintenance, troubleshooting,
etc., follow each procedure (P.52B-24 – P.52B-31)
Caution
1. SRS components should not be subjected to hear over 93C, so remove the SRS-ECU, air
bag module and clock spring before drying or baking the vehicle after painting.
Recheck SRS system operability after re-installing them.
2. If the SRS components are removed for the purpose of check, sheet metal repair, painting,
etc., they should be stored in a clean, dry place until they are reinstalled.

54-1
CHASSIS
ELECTRICAL
CONTENTS
GENERAL 3. . . . . . . . . . . . . . . . . . . . . . . . . .
BATTERY 3. . . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATION 3. . . . . . . . . . . . . . .
ON-VEHICLE SERVICE 3. . . . . . . . . . . . . . . . . .
IGNITION SWITCH EVOLUTION-VI WITH IMMOBILIZER
SYSTEM> 6. . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOL 6. . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 6. . . . . . . . . . . . . . . . . . . .
IGNITION SWITCH 11. . . . . . . . . . . . . . . . . . . . . .
IGNITION SWITCH AND IMMOBILIZER
SYSTEM IMMOBILIZER SYSTEM> 13. . . . . . . . . . .
SPECIAL TOOL 13. . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 13. . . . . . . . . . . . . . . . . .
IGNITION SWITCH AND IMMOBILIZER
SYSTEM 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMBINATION METERS 22. . . . . . . . . . . .
SERVICE SPECIFICATIONS 22. . . . . . . . . . . .
SEALANT 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS 23. . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 24. . . . . . . . . . . . . . . . . .
CONTINUED ON NEXT PAGE
WARNINGS REGARDING SERVICING OF SUPPLEMENTAL RESTRAINT SYSTEM (SRS) EQUIPPED VEHICLES
WARNING!
(1) The service personnel must thoroughly review this manual, and especially its GROUP 52B – Supplemental Restraint
System (SRS) before beginning any service or maintenance of any component of the SRS or any SRS-related
component.
(2) When removing or installing the components indicated in the table of contents by an astarisk (*), use utmost care so
as not to apply any strong shock to SRS components.
NOTE
The SRS includes the following components: SRS-ECU, SRS warning lamp, air bag module, clock spring and interconnecting
wiring. Other SRS-related components (that may have to be removed/installed in connection with SRS service or maintenance) are
indicated in the table of contents by an asterisk (*).

55-2
FULL-AUTOMATIC AIR
CONDITIONER 33. . . . . . . . . . . . . . . . . . . . .
GENERAL 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outline of Change 33. . . . . . . . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATIONS 33. . . . . . . . . . . .
LUBRICANTS 33. . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS 33. . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 34. . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE 56. . . . . . . . . . . . . . . .
Refrigerant Charging, Level Check, Addition
and Removal, Performance Test, Dual
Pressure Switch Simple Check 56. . . . . . . . . . . .
Power Relay Check 57. . . . . . . . . . . . . . . . . . . . . .
Idle-up Operation Check 57. . . . . . . . . . . . . . . . . .
DAMPER CONTROL MOTOR ASSEMBLY
AND POWER TRANSISTOR 58. . . . . . . . . . . .
PHOTO SENSOR 61. . . . . . . . . . . . . . . . . . . . . .
OUTSIDE AIR TEMPERATURE
SENSOR 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HEATER WATER TEMPERATURE
SENSOR 63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OTHER MAINTENANCE SERVICE
POINTS 64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FULL-AUTOMATIC AIR CONDITIONER –
Heater Water Temperature Sensor /
Other Maintenance Service Points55-64
INSPECTION
Follow the same procedure as for the inspection of the outside
temperature sensor. (Refer to P55-62.)
OTHER MAINTENANCE SERVICE POINTS
The following maintenance service points are the same as for the manual A/C.
ItemsReference page
Dual Pressure Switch55-13
Blower Relay, A/C Compressor Relay, Condenser Fan Relay, Radiator Fan Relay55-13, 14
Idle-up System55-14
Heater Unit, Cooling and Blower Unit55-15
Blower Motor Assembly, Evaporator55-19
Compressor, Tension Pulley55-23
Condenser, Condenser Fan55-28
Ducts55-31