Mitsubishi 1989-1993 GALANT Service Manual page 986

ACTIVE-ELECTRONIC CONTROL SUSPENSION - Troubleshooting
Operation
The vehicle-speed sensor is a reed switch type with pulse signals being sent four times for each rotation of
the transaxle output gear.
Diagnostic
If there is damage or disconnection of the heavy-line
circuit, or a malfunction of the vehicle-speed sensor,
Diagnostic No.
24
Control stop
Service data indication
Code No
24 Indicates the vehicle speed Input to
the ECU (including the simulated
ECU terminal voltages (when connector is connected)
Vehicle-speed
58
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Checking the vehicle-speed sensor circuit (with the connector disconnected)
No measured part
58
Troubleshooting hints
In actual urban driving, it is not so likely that the
or more open for more than 30
seconds. Therefore, the conditions have been
somewhat stricter to prevent unnecessary applica-
tion of the fall safe function due to the racing of the
engine when stopped. However, the vehicle may
run uncontrolled for some distance when the speed
Damping force
control
Held at MEDIUM
24: SPEED SNSR.
I
signal
I
*When the vehicle-speed sensor reed switch is OFF
power (8V)
pull-up
e a s u r e m e n t
Resistance
TSB Revision
the alarm light illuminates and control is as de-
scribed in the table below.
Vehicle-height
control
HIGH
Held at NORMAL
Display
0 km/h
Condition
Tester connection
With the battery's (-1 termrnal
disconnected, move the vehicle
back and forth.
sensor fails.
This takes into account that the vehicle speed sen-
sor is shared by many systems such as EPS, Auto-
cruise control, etc. and that the failure of the sensor
can also be detected from the state of these sys-
terns.
Switch acceptance
SPORT AUTO
Not accept
Terminal
voltage
ov
Standard
Check condition
Continuity
No
continuity
SOFT
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