acd MITSUBISHI LANCER EVOLUTION VIII 2004 Workshop Manual

21Power Train – Differential
SECTION 2
POWER TRAIN
CONTENTS
Differential ..............................................21
Differential
The following changes have been made to the Super AYC differential.
• Reduced weight: The weight of the differential has been reduced by building the clutch case from aluminium, rather than
steel, and partially revising the thickness of the clutch discs.
• Improved strength and durability: Strength and durability have been raised by adopting special highstrength steel for the
hypoid gears (pinion gear and drive gear), instead of the cast steel used previously.
• Improved control when ABS is operating: Revisions to the communications with the ABSECU and the control procedure
during ABS operation, as well as active ACD/AYC control in high friction road surfaces, such as circuits, have led to
increased steerability and stability.
Structural Diagram
Hypoid gears
Clutch case
Clutch discs

REFERENCE MATERIAL – MAIN SPECIFICATIONS83
GHCT9AItem
SJDFZ
Classification No. È105
(B,D,W)106
(A,B,D,W)109
(B,D,W)110
(A,B,D,W)113
(B,D,W)
Front axle
weight830840¨850830
Rear axle
weight530¨¨¨540
Vehicle weight
kg
È
Total13601370¨13801370
Number of passengers5
Front axle
weight930940¨950930
Rear axle
weight705¨¨¨715
Weight
Gross vehicle
weight kg È
Total16351645¨16551645
GHCT9AItem
SJDFZSJGFZ
Classification No. È114
(A,B,D,W)117 (B,D,W)118
(A,B,D,W)119
(A,B,D,W)
Front axle
weight840¨850860
Rear axle
weight540¨¨¨
Vehicle weight
kg È
Total1380¨13901400
Number of passengers5
Front axle
weight940¨950960
Rear axle
weight715¨¨715
Weight
Gross vehicle
weight kg È
Total1655¨16651675
Notes :
The symbols after the Classification Numbers indicate the following equipment.
A: Air conditioning B: ABS D: ACD (Active Centre Differential) W: 17inch wheels

REFERENCE MA
TERIAL – MAIN EQUIPMENT86
Main Equipment
The “” symbol indicates standard equipment, and the “” symbol indicates a manufacturer’s option. The equipment may change, depending on the time of manufacture.
4WD
RSGSR
Equipment
5M/T6M/T
Aluminium turbollr
Intercooler water spray systemlll
W/out Intercooler water spray systemrr
Engine
Engine oil coolerlll
5speed manual (short stroke, high gear
ratio)l
6speed manual (short stroke)ll
Gear leverLeather
Front LSDHelical
Rear LSDMechanical
l
lll
Active Centre Differential (ACD)lll
Power
Train
Active Yaw Control Differential (AYC)rll
Bilstein shock absorbersrrl
Front strut tower barslll
205/65R15 94HlTyres
235/45ZR17rll
T125/70D16lSpare
tyre
T125/70D17rll
Steel (5hole)
(Offset : 46 mm)
(PCD:
114.3mm)15inch
¥ 6.0JJ
silverl
17inch
¥ 8.0JJrllSteel (5hole)
(Offset : 38 mm)
(PCD:114.3mm)
17inch
¥ 8.0JJ
(BBS)
rrr
Steel (5hole)
(Offset : 40 mm)
(PCD:
114.3mm)4.0T•
16inchl
Wheel
Steel (5hole)
(Offset : 30 mm)
(PCD:114.3mm)4.0T•
17inch
rll
Centre capBlackl
Power steeringlll
MOMOllSteering wheel (leather
type ; 3spoke; airbag)
MOMO
(black
spokes)
rrl
Tilt steering mechanism
Full cover
lll
Release switch
(gloss)
Parking brake
lever
Leather grip
l
15inch ventilated
disclFront
17inch ventilated
disc (BREMBO)rll
15inch ventilated
disc (drum in)l
Drive
Control
Brake
Rear
16inch ventilated
disc (drum in)(BREMBO)
rll
Note:
In the wheel columns, “PCD” is an abbreviation of “Pitch
Circle Diameter”, referring to the diameter of the pitch circle
of the installation holes.
4WD
RSGSR
Equipment
5M/T6M/T
4 ABS (sports ABS)rll
Pressure control valve (PCV)l
Drive
Control
Electronic Brake Force Distribution
System (EBD)rll
Central door lockingrrl
Boot lid openerlll
Fuel filler flap opener
Child protection
lll
Multimode keyless entryl
BlackllOuter door handles
Body colourl
Inside door handlesColouredlll
Power windows with safety mechanismsrrl
Windscreen (laminated glass)Green
Front door windows (UV absorbing
glass)lll
Greenll
Green, with sun
shadel
Rear window
glass (with
heating element)
Privacy glassr
GreenlllRear door
windows
Privacy glassr
GreenlllRear static
windows
Privacy glassr
BonnetAluminiumAir outlet
WingAluminium
RoofAluminium
lll
Body
Rear end crossbarll
Exclusive
front bumperBody colour
Exclusive
rear bumperBody colour
Windscreen
Rear window
Pillar, roof
Mouldings
(black)
Belt line
lll
Manual type (black)llDoor mirror
Electric stowable
remote control door
mirror (body colour)l
Front air damExclusive
extension
Rear air dam
lll
Exterior
Rear spoiler (large size)lll

REFERENCE MATERIAL – MAIN EQUIPMENT87
4WD
RSGSR
Equipment
5M/T6M/T
Seat finishFabriclll
Standard typell
Recaro seatr*1r*1l
SlideAdjustment
mechanism
Reclining
lll
Front
Seat
Headrest
Low back bench seat (fixed)
ll
High back bench seat (fixed)
Rear
Seat
Centre arm rest (with cup
holder)
l
2 ¥ 3point with
ELR
With pretensioner
(driver’s seat &
front passenger
seat)
Front
Adjustable
seatbelt anchor
SRS
airbags
Rear2 ¥ 3point with
ELR / ALR + 1 ¥ 2
point belt
lll
Driver’s seatlllSRS
airbags
Front passenger’s seatrrl
Accessories box (1 DIN)ll
Parcel box (with lid)l
Parcel
boxes
Coin box
Glove box
lll
Standard typell
Large typeWith lidl
Shift boot ringl
Front seatlllAshtray
Rear seatl
Floor
console
Cup holder (front seat)lll
Centre panel (unique type)ll
2 DIN typel
HeadliningClothlll
Moulded type (soft)Front door
trim
Door pocket (driver’s
seat, front passenger’s
seat)
Interior
Rear doorMoulded type (soft)
lll
4WD
RSGSR
Equipment
5M/T6M/T
Boot interior trim
Boot interior
floor carpetNeedle punch
l
¥ 1 (front passenger’s seat)llRetractable
assistance
straps
¥ 3 (front passenger’s seat,
rear seats)l
Driver’s seatlll
Front passenger’s seatrrl
Ticket holder (driver’s seat)lll
Sun
visors
Vanity mirror (with lid)l
Internal
mirrorDay / night switchable
Interior
Foot rests
lll
44B20LlllBattery
55B24Lrrr
Halogen (low and
high beam)ll
Discharge (low
beam)
Halogen (high
beam)
Fog lamps
(halogen)
rrl
Position lightslll
Automatic lightsl
Headlight levellingrrl
Extension (black)rrl
Rear combination
lights
(clear type *2)lll
External
lightsHeadlight
assembly
(Clear
type *2)
Extension (black)rrl
High mount stop
lightRear shelf mounting
(bulb type)
Front cabin lights (with map light)
lll
Rear cabin lightslll
Interior
lights
Boot interior light
Combination meterSpecial type
Electric type analogue
speedometer
Twin type trip meter
Tachometer
Water temperature
Meter
gauge
Fuel
lll
Fog lightsrrl
High beam
Turn signal and hazard lights
Equip
ment
Indicator
lights
ACD
lll
Note : *1: 4point seatbelt asymmetric type seat*2: Turn signal lamps coloured amber

SECTION 22
MANUAL TRANSMISSION
CONTENTS
General........................................................1 Troubleshooting .........................................1
General
The following troubleshooting items have been changed along with the changes to the wiring. Troubleshooting points other than
those mentioned below remain unchanged, and are the same as on the existing Lancer Evolution VII/VIII.
Troubleshooting
1. Diagnosis Code ListMANUAL TRANSMISSION – GENERAL, TROUBLESHOOTING
221
Diagnosis code no.Diagnosis itemPage ref.
12Power supply voltage (valve power supply) systemBroken wire or short222
21Vehicle wheel speed sensor system Broken wire or short223
22Vehicle wheel speed sensor system Broken wire or short223
23Vehicle wheel speed sensor system Broken wire or short223
24Vehicle wheel speed sensor system Broken wire or short223
25Abnormal diameter tyres 225
26Vehicle wheel speed sensor system (output signal abnormal) 226
41TPS systemBroken wire or earthing227
42Short227
45Pressure sensor systemBroken wire or earthing228
46Earth wire broken228
47Abnormal power supply229
51Longitudinal G sensor systemBroken wire or short2210
52Sensor malfunction2211
56Lateral G sensor systemBroken wire or short2212
57Sensor malfunction2213
61Stop lamp switch systemBroken wire2214
62ACD mode switch systemSticking2215
63Parking brake switch systemShort or failing to return2216
65ABS monitor system Broken wire or ABS failure2217
74Proportional control valve systemBroken wire or short2218
81Electrical pump relay systemBroken wire or short2218

MANUAL TRANSMISSION TROUBLESHOOTING223
Vehicle speed sensor fitting check
NG > repair
MUTII/III Service Data
• No.01 Vehicle speed sensor
•No.02 Vehicle speed sensor
• No.03 Vehicle speed sensor
OK:Speed shown on speedometer and MUTII/III agree
OK > Intermittent malfunction
Measurement at C38 4WDECU connector
• Undo connector and take measurement on harness
side
(1) Resistance between 9 – 22 (vehicle speed sensor )
(2) Resistance between 6 19 (vehicle speed sensor )
(3) Resistance between 7 20 (vehicle speed sensor )
(4) Resistance between 8 – 21 (vehicle speed sensor )
OK:1.2 – 1.6 kΩ
To next pageVehicle wheel speed sensor check
(Refer to Group 35B – Vehicle wheel speed sensor)
*1
NG > Replace
Connector checks:C38, A05, A31, D11, D05,
D12, C131, C20, C115, C34
NG > Repair
Harness check between 4WDECU – each vehicle
wheel speed sensor
MUTII/III Service data
•No.1 Vehicle speed sensor
•No.2 Vehicle speed sensor
• No.3 Vehicle speed sensor
• No.4 Vehicle speed sensor
OK: Speed shown on speedometer and MUTII/III agreeNG > Replace 4WDECU
OK > Intermittent malfunction
Code No.21 Vehicle wheel speed sensor systems
Code No.22 Vehicle wheel speed sensor systems
Code No.23 Vehicle wheel speed sensor systems
Code No.24 Vehicle wheel speed sensor systemsAssumed cause of concern
When one of the vehicle wheel speed sensors detects a
vehicle speed of 15kph or more, and when even one of the
remaining 3 sensors cannot detect vehicle speed, the
diagnosis code for wheel speed sensor broken wire or short is
output.• Wheel speed sensor malfunction
• Rotor malfunction
•Wheel bearing malfunction
• Harness, connector malfunction
• 4WDECU malfunction

Remarks*1: refer to ’005 Lancer Sedia Service Manual (No.1036K00)*2: refer to ’011 Lancer Evolution VII Service Manual (No.1036K02)
OK
OK
OK
OK
OK
NG
NG

Vehicle speed sensor fitting check
NG > repair
MUTII/III Service Data
• No.01 Vehicle speed sensor
• No.02 Vehicle speed sensor
• No.03 Vehicle speed sensor
• No.04 Vehicle speed sensor
OK:Speed shown on speedometer and MUTII/III agree
OK > Intermittent malfunction
Measurement at C38 4WDECU connector
•Undo connector and take measurement on harness
side
(1) Resistance between 9 – 22 (vehicle speed sensor
)
(2) Resistance between 6 19 (vehicle speed sensor
)
(3) Resistance between 7 20 (vehicle speed sensor
)
(4) Resistance between 8 – 21 (vehicle speed sensor
)
OK:1.2 – 1.6kΩ
Check vehicle wheel speed sensor output voltage (ref.
p.2241)
*2
Check connector:C38
NG > repair
MUTII/III Service data
• No.1 Vehicle speed sensor
• No.2 Vehicle speed sensor
• No.3 Vehicle speed sensor
OK:Speed shown on speedometer and MUTII/III
agree
NG > Replace 4WDECU
OK > Intermittent malfunctionVehicle wheel speed sensor
(Refer to Group 35B – Vehicle wheel speed sensor)
*1
NG > Repair
Connector checks:C38, A05, A31, D11, D05,
D12, C131, C20, C115, C34
NG: Repair
Harness check between 4WDECU – each vehicle
wheel speed sensor
• Check output wire for broken wire, earthing, short
• Check earth wire to see if broken or damaged
NG:repair
MUTII/III Service data
•No.1 Vehicle speed sensor
•No.2 Vehicle speed sensor
• No.3 Vehicle speed sensor
• No.4 Vehicle speed sensor
OK:Speed shown on speedometer and MUTII/III
agree
NG > Replace 4WDECU
OK > Intermittent malfunction
Vehicle wheel speed sensor and rotor check
(Refer to Group 35B – Vehicle Wheel Speed Sensor)
*1
NG > Repair
Wheel bearing check (Refer to Group 26 – Vehicle
Servicing, Group 27B – Rear Hub Assembly)
*2
NG > Repair
MANUAL TRANSMISSION TROUBLESHOOTING225
Code No.25 Abnormal tyre diameterAssumed cause of concern
Abnormal tyre Code No. 25 is output in cases where, when
the steering wheel is in a central position, and vehicle speed
is 20kph or more, there is a discrepancy between one of the
vehicle wheel speed sensors and the average of the 4 wheel
speed sensors, in that it is outside the specified range.However, the warning lamp does not come on.• Tyre malfunction
•Vehicle speed sensor malfunction
• Rotor malfunction
• Wheel bearing malfunction
• Harness, connector malfunction

Remarks*1: refer to ’005 Lancer Sedia Service Manual (No.1036K00)*2: refer to ’011 Lancer Evolution VII Service Manual (No.1036K02)
OK
OK
OK
OK NG
NG
OK
NG
OK
OK
OK

MANUAL TRANSMISSION TROUBLESHOOTING226
Vehicle speed sensor fitting check
NG > repair
MUTII/III Service Data
• No.01 Vehicle speed sensor
• No.02 Vehicle speed sensor
•No.03 Vehicle speed sensor
•No.04 Vehicle speed sensor
OK:Speed shown on speedometer and MUTII/III agree
OK > Intermittent malfunction
Measurement at C38 4WDECU connector
• Undo connector and take measurement on harness
side
(1) Resistance between 9 – 22 (vehicle speed sensor
)
(2) Resistance between 6 19 (vehicle speed sensor
)
(3) Resistance between 7 20 (vehicle speed sensor
)
(4) Resistance between 8 – 21 (vehicle speed sensor
)
OK:1.2 – 1.6kΩ
Check vehicle wheel speed sensor output voltage (ref.
p.2241)
*2
Check connector:C38
NG > repair
MUTII/III Service data
• No.1 Vehicle speed sensor
• No.2 Vehicle speed sensor
• No.3 Vehicle speed sensor
OK:Speed shown on speedometer and MUTII/III
agree
NG > Replace 4WDECU
OK > Intermittent malfunctionVehicle wheel speed sensor
(Refer to Group 35B – Vehicle wheel speed sensor)
*1
NG > Repair
Connector checks:C38, A05, A31, D11, D05,
D12, C131, C20, C115, C34
NG > Repair
Harness check between 4WDECU – each vehicle
wheel speed sensor
• Check output wire for broken wire, earthing, short
• Check earth wire to see if broken or damaged
NG > repair
MUTII/III Service data
•No.1 Vehicle speed sensor
• No.2 Vehicle speed sensor
• No.3 Vehicle speed sensor
• No.4 Vehicle speed sensor
OK:Speed shown on speedometer and MUTII/III
agree
NG > Replace 4WDECU
OK > Intermittent malfunction
Vehicle wheel speed sensor and rotor check
(Refer to Group 35B – Vehicle Wheel Speed Sensor)
*1
NG > Repair
Wheel bearing check (Refer to Group 26 – Vehicle
Servicing, Group 27B – Rear Hub Assembly)
*2
NG > Repair
Code No.26 Vehicle wheel speed sensor system (output
signal abnormal)Assumed cause of concern
Abnormal vehicle wheel speed sensor Code No. 26 is output
in cases where, when the vehicle speed is 20kph or more,
one of the vehicle wheel speed sensors is outside the
specified range. However, the warning lamp does come on.•Tyre malfunction
• Vehicle speed sensor malfunction
•Rotor malfunction
• Wheel bearing malfunction
•Harness, connector malfunction
• 4WDECU malfunction

Remarks*1: refer to ’005 Lancer Sedia Service Manual (No.1036K00)*2: refer to ’011 Lancer Evolution VII Service Manual (No.1036K02)
OK
OK
OK
OK NG
NG
OK
NG
OK
OK
OK

MANUAL TRANSMISSION TROUBLESHOOTING2210
Code No.51 Longitudinal G sensor systemAssumed cause of concern
Code No.51 is output when the longitudinal G sensor signal
falls below 0.5V or rises above 4.5V.• Harness, connector malfunction
• Longitudinal G sensor malfunction
• ABSECU malfunction
• 4WDECU malfunction
Remarks*2: refer to ’011 Lancer Evolution VII Service Manual (No.1036K02)
MUTII/III Service data
• No.14 longitudinal G sensor power voltage
OK:P.2232 Refer to (Service Data List)*2
OK > Intermittent malfunction
Measurement at D29 longitudinal G sensor connector
• Undo connector and measure on harness side
• Ignition switch: ON
(1) Voltage between 1 earth
OK:battery voltage
(2) Resistance between 3 – earth
OK:2Ω or less
D29
Harness side
connector
• Remove longitudinal G sensor
• Connect the special tool between D29 longitudinal
G sensor connector harness side connector and
longitudinal G sensor.
• Ignition switch: ON
• Voltage between 2 – body earth (when longitudinal
G sensor is set on a flat surface)
OK:2.4 – 2.6V
• Voltage between 2 – body earth (when longitudinal
G sensor is placed so that the label surface facesside
ways)
OK:3.3 – 3.7V
Connector check:D29, C38, C20, B109 AYC fitted vehicles> D29, C20, C38 vehicles>
NG > repair
Check harness between longitudinal G sensor – 4WD
ECU
• Check for broken output wire, earth, damage
Check harness between longitudinal G sensor – ABSECU
•Check output wire for earth, damage
NG > repair
Connector check:D29, C212, C210
NG > repair
Check harness between longitudinal G sensor –
ignition switch.
• Check for broken power supply wire, earth, damage
• NG > repair
Connector check:D29, C20, B109 fitted vehicles> D29, C20, C38,
NG > repair
Check harness between longitudinal G sensor – ABS
ECU
•Check to see if earth wire broken or damaged
NG > repair
Check harness between longitudinal G sensor – 4WD
ECU
• Check to see if earth wire broken or damaged
NG > repair
MUTII/III Service data
• No.14 longitudinal G sensor voltage
OK:Refer to P.2232 (Service Data List)*2
NG > Refer to Group 35C – Troubleshooting*2
or 4WDECU vehicles> Replace
OK > intermittent malfunction
Replace longitudinal G sensor
MUTII/III Service data• No.14 longitudinal G sensor voltage
OK:Refer to P.2232 (Service Data List)*2
NG > Refer to Group 35C – Troubleshooting*2
or 4WDECU vehicles> Replace
OK > intermittent malfunction
label label
OK
NG
(1) NG
NG
(2) NG
OK
OK
OK
OK
OK
OK

MANUAL TRANSMISSION TROUBLESHOOTING2211
Code No.52 Longitudinal G sensor systemAssumed cause of concern
At 10kph or over, with ABS and brakes not applied, code No.
52 is output in cases where G sensor indicates higher than
specified value.• Harness, connector malfunction
• Longitudinal G sensor malfunction
• ABSECU malfunction
• 4WDECU malfunction
Remarks*2: refer to ’011 Lancer Evolution VII Service Manual (No.1036K02)
MUTII/III Service data
• No.14 longitudinal sensor voltage
OK:P.2232 Refer to (Service Data List)*2
OK > Intermittent malfunction
Longitudinal G sensor check (refer to P.2232)
*2
NG > replace
Measurement at C38 4WDECU connector
• ECU terminal voltage measurement
• Ignition switch: ON
• Voltage between 23 – earth
OK:2.4 – 2.6V (when vehicle is standing on flat
ground)
Connector check:C38
NG > repair
MUTII/III Service data
• No.14 longitudinal sensor voltage
OK:P.2232 Refer to (Service Data List)*2
NG > Replace 4WDECU
OK > Intermittent malfunction
Connector check:C38, D29, C20, B109
C38, C20, D29 fitted vehicles> NG > repair
Check harness between longitudinal G sensor – 4WD
ECU
•Check to see if output wire is broken, earth, or
damaged
Check harness between longitudinal G sensor – ABS
ECU

MUTII/III Service data
• No.14 longitudinal G sensor voltage
OK:Refer to P.2232 (Service Data List)*2
NG > Refer to Group 35C – Troubleshooting*2
or replace 4WDECU
OK > intermittent malfunction
NG
OK
OK
OK
NG
OK
OK