Mitsubishi Colt Ralliart. Manual — part 641
![](/vehicles/winoney/ama/flend/ueay.png)
TROUBLESHOOTING
ACTIVE STABILITY CONTROL SYSTEM (ASC)
35C-109
DATA LIST REFERENCE TABLE
M1357001200017
Among the ASC-ECU input data, the following items
can be read by using the M.U.T.-III.
Item
No.
Check items
Check conditions
Normal conditions
01
FR wheel speed sensor
Drive the vehicle.
The speedometer display
and the M.U.T.-III display
almost agree with each
other.
02
FL wheel speed sensor
03
RR wheel speed sensor
04
RL wheel speed sensor
05
Power supply voltage
Always
8 V or more
07
Valve relay
The ABS, EBD, stability control
system, and TCL are operated.
ON
The ABS, EBD, stability control
system, and TCL are not
operated.
OFF
10
Stop lamp switch (input value)
The brake pedal is depressed.
ON
The brake pedal is released.
OFF
11
Stop lamp switch
The brake pedal is depressed.
ON
The brake pedal is released.
OFF
12
Brake switch (input value)
The brake pedal is depressed.
OFF
The brake pedal is released.
ON
13
Brake switch
The brake pedal is depressed.
OFF
The brake pedal is released.
ON
14
Lateral G-sensor (+: right turn, -: left
turn)
Vehicle stopped (level)
−1.1 to 1.1 m/s
2
Running
−17.7 to 17.7 m/s
2
15
Master cylinder pressure sensor
The brake pedal is depressed.
Increases by the amount
of the brake pedal
depression.
The brake pedal is released.
0
−15 bar
16
Steering angle sensor (-: right turn,
+: left turn)
Position the steering wheel in a
straight ahead direction.
-5
− 5 °
Running (when ASC-ECS is
judged as normal.)
-500
− 500 °
Single unit check (when the
sensor unit is normal.)
-720
− 720 °
17
Yaw rate sensor (-: right turn, +: left
turn)
Vehicle stopped
-4
− 4 °/s
Running
-100.2
− 99.8 °/s
20
FL inlet valve
The ABS, EBD, stability control
system, and TCL are operated.
ON
The ABS, EBD, stability control
system, and TCL are not
operated.
OFF
Main
Index
Group
TOC
![](/vehicles/winoney/ama/flend/dohinas.png)
TROUBLESHOOTING
ACTIVE STABILITY CONTROL SYSTEM (ASC)
35C-110
21
FL outlet valve
The ABS, EBD, stability control
system, and TCL are operated.
ON
The ABS, EBD, stability control
system, and TCL are not
operated.
OFF
22
FR inlet valve
The ABS, EBD, stability control
system, and TCL are operated.
ON
The ABS, EBD, stability control
system, and TCL are not
operated.
OFF
23
FR outlet valve
The ABS, EBD, stability control
system, and TCL are operated.
ON
The ABS, EBD, stability control
system, and TCL are not
operated.
OFF
24
RL inlet valve
The ABS, EBD, stability control
system, and TCL are operated.
ON
The ABS, EBD, stability control
system, and TCL are not
operated.
OFF
25
RL outlet valve
The ABS, EBD, stability control
system, and TCL are operated.
ON
The ABS, EBD, stability control
system, and TCL are not
operated.
OFF
26
RR inlet valve
The ABS, EBD, stability control
system, and TCL are operated.
ON
The ABS, EBD, stability control
system, and TCL are not
operated.
OFF
27
RR outlet valve
The ABS, EBD, stability control
system, and TCL are operated.
ON
The ABS, EBD, stability control
system, and TCL are not
operated.
OFF
28
Side brake switch
The parking brake lever is pulled. ON
The parking brake lever is
released.
OFF
29
Pump motor
The ABS, EBD, stability control
system, and TCL are operated.
ON
The ABS, EBD, stability control
system, and TCL are not
operated.
OFF
Item
No.
Check items
Check conditions
Normal conditions
Main
Index
Group
TOC
![](/vehicles/winoney/ama/flend/ponck.png)
TROUBLESHOOTING
ACTIVE STABILITY CONTROL SYSTEM (ASC)
35C-111
30
SAS calibration flag
The steering wheel sensor
calibration is completed.
Completion
The steering wheel sensor
calibration is not completed.
Incompletion
31
SAS fail flag
The steering wheel sensor output
is normal.
Normal
The steering wheel sensor output
is abnormal.
Fail
32
Brake fluid level switch
The brake fluid level in the brake
fluid reservoir is above "MIN."
OFF
The brake fluid level in the brake
fluid reservoir is below "MIN."
ON
33
ASC OFF switch
The ASC OFF switch is pressed. ON
The ASC OFF switch is not
operated.
OFF
34
FL/RR diagonal suction valve
The stability control system and
TCL are operated.
ON
The stability control system and
TCL are not operated.
OFF
35
FR/RL diagonal suction valve
The stability control system and
TCL are operated.
ON
The stability control system and
TCL are not operated.
OFF
36
FL/RR diagonal cut valve
The stability control system and
TCL are operated.
ON
The stability control system and
TCL are not operated.
OFF
37
FR/RL diagonal cut valve
The stability control system and
TCL are operated.
ON
The stability control system and
TCL are not operated.
OFF
Item
No.
Check items
Check conditions
Normal conditions
Main
Index
Group
TOC
![](/vehicles/winoney/ama/flend/socr.png)
TROUBLESHOOTING
ACTIVE STABILITY CONTROL SYSTEM (ASC)
35C-112
ACTUATOR TEST TABLE
M1357001300014
Using the M.U.T.-III, the following actuators can be
forcibly operated:
NOTE:
.
•
The ABS, stability control, and TCL are operated
by ASC-ECU.
•
When ASC-ECU is disabled due to the fail-safe
function, the actuator test cannot be performed.
•
The actuator test can be performed only when
the vehicle is stationary.
•
When communicating with the M.U.T.-III, the
brake warning lamp, ABS warning lamp, ASC
warning lamp and ASC OFF indicator lamp
always illuminate.
Actuator test specifications
Item No.
Check items
Driven component
01
FR wheel ABS
Solenoid valve for the corresponding
channel of the hydraulic unit and pump
motor (simplified inspection mode)
02
FL wheel ABS
03
RR wheel ABS
04
RL wheel ABS
05
FR wheel TCL
06
FL wheel TCL
07
RR wheel TCL
08
RL wheel TCL
09
Engine TCL operation
Outputs the engine torque control signal
(engine torque = 0 N
⋅m) to the engine
ECU for three seconds.
Main
Index
Group
TOC
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