Mitsubishi Outlander GS45X. Manual - part 408
DIAGNOSIS
TSB Revision
ACTIVE STABILITY CONTROL SYSTEM (ASC)
35C-59
CAUTION
• If there is any problem in the CAN bus lines, an incor-
rect diagnostic trouble code may be set. Prior to this
diagnosis, diagnose the CAN bus lines (Refer to
GROUP 54C
− CAN Bus Line Diagnostic Flow
• Whenever ECU is replaced, ensure that the CAN bus
lines are normal.
• When the hydraulic unit (integrated with ASC-ECU) is
replaced, always carry out the calibration of the steer-
ing wheel sensor, the G and yaw rate sensor and brake
fluid pressure sensor (Refer to
and
.
OPERATION
• The wheel speed sensor is a kind of a pulse generator. It
consists of encoders (a plate on which north and south pole
sides of the magnets are arranged alternately) for detecting
the wheel speed which rotates at the same speed of the
wheels and wheel speed sensors. This sensor outputs fre-
quency pulse signals in proportion to the wheel speed.
• The pulse signals, which the wheel speed sensor creates,
are sent to ASC-ECU. ASC-ECU uses the frequency of the
pulse signals to determine the wheel speed.
.
DTC SET CONDITIONS
ASC-ECU monitors the signals from each wheel speed sensor
while the vehicle is being driven. If any fault below is found in
these sensor signals, ASC-ECU will set the relevant diagnostic
trouble code.
• Irregular change in the wheel speed sensor signal
• Wheel speed sensor signal continuously indicates high
value.
.
PROBABLE CAUSES
Current trouble
• Excessive gap between the wheel speed sensor and the
wheel speed detection encoder
• Adhesion of foreign materials on the wheel speed sensor
AC901080AN
Connector: D-133
D-133 (B)