Mitsubishi Evolution X. Manual - part 157
CONSTRUCTION DESCRIPTION
TSB Revision
ACTIVE SKID CONTROL SYSTEM (ASC)
35C-13
EXAMPLE OF TCL CONTROL
When the driving wheels slip on the slippery road
surface, TCL applies the brake automatically, sends
the signal requesting engine speed reduction to the
engine control module, and prevents the loss of driv-
ing force resulting from the slippage of driving wheel.
FAIL-SAFE AND DIAGNOSTIC FUNCTIONS
ASC-ECU constantly monitors the input and output
signals. If a malfunction is detected in the system,
ASC-ECU sends a fail signal to illuminate or flash the
corresponding warning light or warning display. At
the same time, ASC-ECU prohibits the relevant con-
trol depending on the trouble symptom.
Also, ASC-ECU has the following functions to facili-
tate the system checks.
• Diagnostic trouble code set
• Service data output
• Actuator test
All the above items can be checked using scan tool.
.
Calibration
After ASC-ECU, G and yaw rate sensor, and steering
wheel sensor have been replaced with new ones,
calibration must be performed using scan tool
*
.
NOTE:
*
: For calibration, refer to Workshop Manual.
AC706148
Brake force
Driving
force
Direction of
driving
Spinning wheel
Slippery road
AB
Brake force
Slippery road
Spinning wheel
Driving
force