1999 MITSUBISHI LANCER EVOLUTION VI Ayc

REAR AXLE – Hydraulic Unit 27-39
HYDRAULIC UNIT
REMOVAL AND INSTALLATION
Caution
(1) When connecting the return hose and suction hose, do not apply lubricant.
(2) No foreign matter should be allowed in the hydraulic piping and joints.
Pre-removal Operation

Trunk Side Trim Removal

Hydraulic Piping Fluid DrainingPost-installation Operation

Hydraulic Piping Fluid Filling and Bleeding
(Refer to P.27-32, 34.)

Trunk Side Trim Installation
1 23 45
6
7 8 9
10 11 12
1314
12 Nm
4
12 Nm
18 Nm
12 Nm
12 Nm 18 Nm
34 Nm
34 Nm
Removal steps
1. Dust guard
2. Suction hose and return hose con-
nection
3. Hydraulic unit hose assembly con-
nection
4. Hydraulic unit and bracket assem-
bly mounting bolt
C5. Hydraulic unit and bracket assem-
bly
A6. Hydraulic unit7. Hydraulic unit bracket
8. AYC harness
9. Hydraulic unit bracket
10. Hydraulic unit hose assembly
B11. Return hose
B12. Suction hose
A13. Grommet
14. Oil reservoir

REAR AXLE – Hydraulic Unit 27-40
REMOVAL SERVICE POINTS
AHYDRAULIC UNIT REMOVAL
Should the hydraulic unit be discarded, drill a hole in the
accumulator at the illustrated position beforehand in order
to release the inside gas.
Caution
(1) The hydraulic unit has its accumulator filled with a
high pressure gas. Never throw it into a fire. Also,
never attempt to disassemble, press, weld or melt
it.
(2) When drilling a hole in the accumulator, be sure to
wear safety goggles since drill chips may blow out
together with the gas.
INSTALLATION SERVICE POINTS
AGROMMET INSTALLATION
On the vehicle mounted with a sunroof, mount the drain pipe
to the grommet as illustrated.
BSUCTION HOSE / RETURN HOSE INSTALLATION
Fit the suction hose and return hose to the nipple of hydraulic
unit as illustrated.
CHYDRAULIC UNIT AND BRACKET ASSEMBLY
INSTALLATION
Hook the hydraulic unit bracket hook to the rear floor side
member and install the hydraulic unit and bracket assembly
mounting bolt.Grommet
Drain pipe
25 ± 5 mm
Nipple
Suction hose and
return hose15 mm
Hook
Rear floor side member

REAR AXLE – Sensor Relay 27-41
SENSOR RELAY
REMOVAL AND INSTALLATION
Caution: SRS
For vehicles with SRS, before removal of air bag module and clock spring, refer to GROUP 52B
– Service Precautions and Air Bag Module and Clock Spring.
12
3
4
Steer sensor removal steps

Steering wheel and column cover
A1. Steer sensorAcceleration sensor and AYC relay
removal
2. Longitudinal acceleration sensor
3. Lateral acceleration sensor
4. AYC relay
NOTE
For the wheel speed sensor, refer to GROUP 35B.
REMOVAL SERVICE POINT
ASTEER SENSOR REMOVAL
Remove the steer sensor from the column switch.
Caution
(1) A photocoupler is used as the steer sensor. Use care
not to allow dust or grease to be on the sensor.
(2) Do not bend or dirty with grease the slit plate on
the column switch side.Slit plate
Steer sensor

REAR AXLE – Sensor Relay / AYC-ECU27-42
INSPECTION
1. LONGITUDINAL AND LATERAL ACCELERATION
SENSOR CHECK
Refer to GROUP 35B – Acceleration Sensor.
2. AYC RELAY CONTINUITY CHECK
Battery voltageTerminal No.
1345
When not energized
When energized
AYC-ECU
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation

Front Floor Console Removal and Installation
5 Nm
AYC-ECU
5 Nm

C-2
STOP LAMP 51. . . . . . . . . . . . . . . . . . . . . . . . . .
BACK-UP LAMP 52. . . . . . . . . . . . . . . . . . . . . . .
METER AND GAUGE 54. . . . . . . . . . . . . . . . . .
FUEL WARNING LAMP 56. . . . . . . . . . . . . . . .
BRAKE WARNING LAMP 56. . . . . . . . . . . . . .
OIL PRESSURE WARNING LAMP 57. . . . . .
SEAT BELT WARNING LAMP 57. . . . . . . . . .
CENTRAL DOOR LOCKING SYSTEM 58. .
Without Keyless Entry System 58. . . . . . . . . . . .
With Keyless Entry System 60. . . . . . . . . . . . . . .
HEATER AND AIR CONDITIONER 64. . . . . .
FULL-AUTO AIR CONDITIONER 70. . . . . . . .
WINDSHIELD WIPER AND WASHER 78. .
With Intermittent Wiper 78. . . . . . . . . . . . . . . . . . .
REAR WIPER AND WASHER 79. . . . . . . . . .
DEFOGGER AND DOOR MIRROR
HEATER 80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Without Full-Auto Air Conditioner 80. . . . . . . . . .
With Full-Auto Air Conditioner 82. . . . . . . . . . . . .
RADIO 84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio Spare Circuit 84. . . . . . . . . . . . . . . . . . . . . .
4 Speaker, 6 Speaker 86. . . . . . . . . . . . . . . . . . . .
KEY REMINDER BUZZER 89. . . . . . . . . . . . . .
ANTI-SKID BRAKING SYSTEM (ABS) 90. .
SUPPLEMENTAL RESTRAINT SYSTEM
(SRS) 96. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ACTIVE YAW CONTROL SYSTEM (AYC) 98
INTERCOOLER AND RADIATOR WATER
SPRAY SYSTEM 104. . . . . . . . . . . . . . . . . . . . .

– Engine Compartment WIRING HARNESS
CONFIGURATION DIAGRAMSC-7
A-94 (4-GR) Radiator fan motor
A-96 (2-GR) Knock sensor
A-97 (3-B) Camshaft position sensor
A-99 (2-B) Condenser fan motor
A-101 (1) Power steering oil pressure switch
A-102 (1) Spare connector for fog lamp
A-103 (2-B) Fog lamp (RH)
A-104 (2) Position lamp (RH)
A-105 (3-B) Headlamp (RH)
A-106 (1-B) A/C compressor assembly
A-107 (2-BR) Front turn signal lamp (RH)
A-110 (3-GR) Ignition coil 1
A-111 (3-GR) Ignition coil 2A-112X (4) Radiator fan relay (HI)
A-113X (4) Condenser fan relay (LO)
A-114X (4) Condenser fan relay (HI)
A-116X (4) A/C compressor relay
A-117 (2-GR) Side turn signal lamp (RH)
A-123 (5-B) Fuel pump relay No.2
A-124 (2-B) Fuel pump resistor
A-125 (6-B) Resistor (for injector)
A-126 (5-B) AYC relay
A-127 (2-B) Secondary air control solenoid valve
A-128 (2-GR) Condenser fan motor
A-129 (2-B) Water spray motor
A-131 (1-B) Noise condenser

– Dash Panel WIRING HARNESS
CONFIGURATION DIAGRAMS
Interior relay box
NOTE
The connectors with framed
number are newly introduced.
C-11
B-59 (26-Y) Engine-ECU
B-60 (16-Y) Engine-ECU
B-61 (12-Y) Engine-ECU
B-62 (22-Y) Engine-ECU
B-63 (2) Blower motor manual air conditioner>
B-64 (13) Control harness and body harness
combinationB-65 (16-B) Control harness and body harness
combination
B-94 (13) Control harness and body harness
combination
B-95 (26) AYC-ECU
B-96 (16) AYC-ECU
B-99 (12) Diagnosis connector

– Floor and Roof WIRING HARNESS
CONFIGURATION DIAGRAMS
NOTE
The connectors with framed
number are newly introduced.
C-13
D-19 (2-B) Rear speed sensor (RH)

D-20 (3-B) Acceleration sensor
D-21 (1-B) Parking brake switch
D-27 (2) Body harness and rear harness combina-
tion D-31 (2) Water spray switch
D-32 (3-B) Acceleration sensor (lateral)