Mitsubishi Lancer Evolution VI. Manual — part 52
REAR AXLE –
General / Service Specifications / Lubricant
27-2
GENERAL
OUTLINE OF CHANGE
D
The descriptions of the service procedures for the AYC system including the troubleshooting using
an MUT-
II
tester has been incorporated.
SERVICE SPECIFICATIONS
<Vehicles with AYC>
Items
Standard value
Limit
Rear axle total backlash mm
–
5
Pressure generated by hydraulic unit MPa
0 – 1.6
–
Wheel bearing axial play mm
–
0.05
Wheel bearing rotation starting torque Nm
–
1.0 or less
LUBRICANT
<Vehicles with AYC>
Items
Specified lubricant
Capacity
Gear oil
Torque
transfer
differential
Differential
Hypoid gear oil API classification GL-5 or higher
SAE viscosity No. 90, 80W
0.41
±
0.02
ȏ
differential
Torque transfer
mechanism
MITSUBISHI GENUINE DIA QUEEN AYC FLUID
0.70
)
0
*
0.05
ȏ
Hydraulic piping fluid
Dia Queen ATF SP
II
or equivalent
1
ȏ
Torque transfer mechanism oil seal lips
Vaseline
As required
REAR AXLE –
Special Tools
27-3
SPECIAL TOOLS
Tool
Number
Name
Use
MB991502
MUT-
II
sub-
assembly
Inspection of AYC
(diagnosis display by MUT-
II
)
MB991529
Diagnosis code
check harness
Inspection of AYC
(diagnosis display by AYC warning lamp)
MD998330
(MD998331)
Oil pressure
gauge
(2,942 kPa)
Hydraulic pressure measurement
<vehicles with AYC>
MB991705
Hose adapter
MB990925
Bearing & oil seal
installer set
Pressfitting of oil seal <differential>
MB991115
Oil seal installer
Pressfitting of oil seal <differential>
(used in combination with MB990938)
MD998812
Installer cap
Pressfitting of oil seal <torque transfer mecha-
nism of vehicles with AYC>
MD998813
Installer 100
MD998829
Installer adapter
(60)
REAR AXLE –
Special Tools / Troubleshooting <AYC>
27-4
MB990925
Brass bar
Bar (one-touch type)
Toolbox
Installer adapter
Tool number (MB990925)
O.D. mm
Tool number (MB990925)
O.D. mm
A
MB990926
39.0
A
MB990933
63.5
MB990927
45.0
MB990934
67.5
MB990928
49.5
MB990935
71.5
MB990929
51.0
MB990936
75.5
MB990930
54.0
MB990937
79.0
MB990931
57.0
B
MB990938
–
MB990932
61.0
C
MB990939
–
TROUBLESHOOTING <AYC>
BASIC TROUBLESHOOTING CONDITIONS
Refer to Group 00 – How to Use Troubleshooting / Inspection Service Points.
NOTE
Before starting the troubleshooting procedure, make sure that the following items have been checked
okay.
D
The correct steering wheel has been properly installed in the neutral position of the steering column
shaft.
D
Tire and wheel sizes are correct with correct specifications. Inflation pressure, balance, and wear
conditions are okay.
D
Wheel alignment is correct.
D
The engine, suspension, and other parts have not been remodeled so as to affect the AYC system.
DIAGNOSIS FUNCTION
READING THE DIAGNOSIS CODE
Read the diagnosis code using an MUT-
II
tester or the AYC warning lamp.
(Refer to Group 00 – How to Use Troubleshooting / Inspection Service Points.)
ERASING THE DIAGNOSIS CODE
Refer to Group 00 – How to Use Troubleshooting / Inspection Service Points.
REAR AXLE –
Troubleshooting <AYC>
27-5
3. INSPECTION CHART FOR DIAGNOSIS CODE
Diagnosis
code No.
Diagnosis items
Ref. page
12
Power supply voltage (valve power supply) system (open- or short-circuit)
27-6
21
FR wheel speed sensor system (open- or short-circuit)
27-6
22
FL wheel speed sensor system (open- or short-circuit)
27-6
23
RR wheel speed sensor system (open- or short-circuit)
27-6
24
RL wheel speed sensor system (open- or short-circuit)
27-6
25
Wrong-diameter tire
27-8
26
Faulty wheel speed sensor
27-9
31
Steer sensor (ST-1, ST-2, ST-N) system (open-circuit)
27-10
32
Steer sensor (ST-N) system (short-circuit)
27-10
33
Steer sensor (ST-N) system
27-11
34
Steer sensor (ST-1, ST-2) system (short-circuit)
27-11
41
TPS system (open- or short-circuit)
27-12
51
Longitudinal acceleration sensor system (open- or short-circuit)
27-12
52
Longitudinal acceleration sensor
27-13
56
Lateral acceleration sensor system (open- or short-circuit)
27-12
61
Stop lamp switch system (open-circuit)
27-13
65
ABS monitor system (open-circuit or defective ABS)
27-14
71
Proportioning valve system (open- or short-circuit)
27-14
72
Directional control valve (right) system (open- or short-circuit)
27-15
73
Directional control valve (left) system (open- or short-circuit)
27-16
81
AYC relay system (open- or short-circuit)
27-17
82
Electric pump system
27-18
83
Electric pump system
27-19
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