Mitsubishi Evolution X. Manual — part 340
DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>
TSB Revision
MANUAL TRANSAXLE
22A-9
PRECAUTIONS FOR DIAGNOSIS
Before diagnosis, check that all the following items
are normal.
• A normal steering wheel is installed correctly to
the neutral position of steering column shaft
assembly.
• The size of tire and wheel, specification, tire pres-
sure, balance, and wear status are normal.
• The wheel alignment is normal.
• No modifications to the engine, suspension, or
others, which can affect the S-AWC system, is
implemented.
DIAGNOSTIC FUNCTION
M1221007700078
WARNING INDICATOR
AC710447AB
(B)
(C)
(A)
SERVICE
REQUIRED
When a malfunction occurs in the S-AWC system, the figure (A)
will be displayed on the information screen of multi information
display, and the mode display (B) will be turned off.
Subsequently, the screen returns to the one before the warning
display, and then "!" indicator (C) will illuminate.
If the indicator (C) continues to be displayed on the information
screen of multi information display, check the diagnostic trouble
code that is set.
FAIL-SAFE FUNCTION
If an abnormality occurs to the signal of sensors,
switches, solenoids, or others, the AWC-ECU per-
forms a control for the driver safety and system pro-
tection. The control contents are as follows.
FAIL-SAFE REFERENCE TABLE
DTC No.
Item
Control content
C2203
VIN not written
Normal control
C1614
Parking brake switch A warning is given to the driver with the trouble displayed to the
multi information display, but the control is maintained because the
vehicle behavior is not affected.
C1624
EEPROM
C161F
AWC actuator
protection 1
A warning is given to the driver by the flashing of multi information
display control mode, and the control is stopped.
C1621
AWC actuator
protection 2
Others (other than above)
A warning is given to the driver with the trouble displayed to the
multi information display, and the control is stopped.
NOTE: All the troubles will return to a normal status
when the ignition switch is turned from OFF to ON.
DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>
TSB Revision
MANUAL TRANSAXLE
22A-10
HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)
Required Special Tools:
• MB991958 Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827 M.U.T.-III USB Cable
•
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
MB991910 M.U.T.-III Main Harness A (Vehicles with
CAN communication system)
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
1. Ensure that the ignition switch is at the "LOCK" (OFF)
position.
2. Start up the personal computer.
3. Connect special tool MB991827 to special tool MB991824
and the personal computer.
4. Connect special tool MB991910 to special tool MB991824.
5. Connect special tool MB991910 to the data link connector.
6. Turn the power switch of special tool MB991824 to the "ON"
position.
NOTE: When special tool MB991824 is energized, special
tool MB991824 indicator light will be illuminated in a green
color.
7. Start the scan tool system on the personal computer.
NOTE: Disconnecting scan tool MB991958 is the reverse of the
connecting sequence, making sure that the ignition switch is at
the "LOCK" (OFF) position.
FREEZE FRAME DATA CHECK
Data of when the diagnostic trouble code is deter-
mined is obtained, and the status of S-AWC is
stored. By analyzing each data using the scan tool,
troubleshooting can be carried out efficiently.
Display items of the freeze frame data are as follows.
DISPLAY ITEM LIST
Item No.
Item
Unit/display
contents
1
Odometer
km
2
Ignition cycle
Count
4
Current trouble accumulative time
min
5
AWC control mode (for meter display)
• TARMAC
• GRAVEL
• SNOW
6
ASC control mode
• ASC ON
• ASC OFF
• ASC/BRC OFF
• ASC fail
DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>
TSB Revision
MANUAL TRANSAXLE
22A-11
NOTE: BRC: Brake Control System
DIAGNOSTIC TROUBLE CODE CHART
M1221007800097
CAUTION
During diagnosis, a DTC associated with other system may be set when the ignition switch is turned
ON with connector(s) disconnected. On completion, confirm all systems for diagnostic trouble
code(s). If diagnostic trouble code(s) are set, erase them all.
7
AYC torque differential restriction direction (AYC request)
• No restriction
• Restriction of right
axle movement
• Restriction of left
axle movement
• Restriction of
lateral axle
movement
8
Stoplight switch
• ON
• OFF
9
Parking brake switch
• ON
• OFF
10
ABS activation flag
• ON
• OFF
11
Steering wheel sensor
deg
12
Accelerator opening angle
%
13
Wheel speed sensor <FL>
km/h
14
Wheel speed sensor <FR>
km/h
15
Wheel speed sensor <RL>
km/h
16
Wheel speed sensor <RR>
km/h
17
Master cylinder pressure sensor
MPa
18
Yaw rate sensor
deg/s
19
Lateral G-sensor
m/s
2
20
Longitudinal G-sensor
m/s
2
21
ACD target torque
Nm
22
AYC target torque
Nm
23
Brake control torque
Nm
Item No.
Item
Unit/display
contents
DTC No.
Item
Reference page
C1000
Stoplight switch system
C100A
FL
Wheel speed sensor system (faulty circuit)
C1015
FR
C1020
RL
C102B
RR
DIAGNOSIS <S-AWC(SUPER ALL WHEEL CONTROL)>
TSB Revision
MANUAL TRANSAXLE
22A-12
C1011
FL
Wheel speed sensor system (faulty signal)
C101C
FR
C1027
RL
C1032
RR
C1014
FL
Wheel speed sensor system (characteristics abnormality)
C101F
FR
C102A
RL
C1035
RR
C1078
Tire turning malfunction
C1219
Steering wheel sensor system (faulty signal)
C121A
Steering wheel sensor system (neutral learning abnormality)
C123C
G and yaw rate sensor system (faulty signal)
C1242
G and yaw rate sensor system (abnormality of longitudinal G sensor
output signal)
C1610
Electronic relay abnormality of AWC actuator power supply
C1611
AWC pressure sensor system (low voltage)
C1612
AWC pressure sensor system (high voltage)
C1613
AWC switch system (ON sticking)
<Vehicles with
steering wheel audio
remote control switch>
<Vehicles
without steering wheel
audio remote control
switch>
C1614
Parking brake switch system (ON sticking)
C1615
Brake control prohibition request
C1616
Cranking signal system (ON sticking)
C1617
AWC CAN main data system (data not received)
C1618
AWC CAN local data system (data not received)
C1619
AYC current value (abnormal)
Refer to GROUP 27
−
Troubleshooting
C161A
AYC direction valve (right) system (output abnormality)
Refer to GROUP 27
−
Troubleshooting
C161B
AYC direction valve (left) system (output abnormality)
Refer to GROUP 27
−
Troubleshooting
C161C
ACD proportioning valve system (malfunction)
C161D
Electric pump relay system (faulty circuit)
C161E
Electric pump system
DTC No.
Item
Reference page
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