Mitsubishi 1989-1993 GALANT Service Manual page 984

ACTIVE-ELECTRONIC CONTROL SUSPENSION - Troubleshootina
Diagnostic
When a signal (error code) indicating an abnormal
condition (resulting from damage or disconnection
of the heavy-line circuit, or a malfunction of a
Diagnostic No.
Attitude control
23 Control stop
Service data indication
Code No
Indication
23
Current vehicle-height level (ERROR When
when there is a malfunction)
Indicates the ON or OFF status of
each photo-interruptor.
ECU terminal voltages (when connector is connected)
Terminal
Signal
No.
25 Power source for sensor
61.62
Front vehicle-height sIgnal
Sensor circuit ground
36
Checking the rear-height sensor circuit (with the connector disconnected)
T e r m i n a l C o n n e c t i o n d e s t i n a t i o n o r M
No
measured part
power-supply circuit
61 Rear-height sensor A
64
.
Malfunction
mode
Improper
Because of the improper adjustment of the
adjustment of the
rear-height sensor rod, a signal not
rear-height sensor
rod
Damping force
control
Held at MEDIUM
normal
function
When the ECU is activated
When the photo-mterruptors are ON
When the photo-interruptors are OFF
Constantly
e a s u r e m e n t
Tester connection
Resistance
25-36
61-36
62-36
63-36
Resistance
Malfunction probable cause
TSB Revision
photo-transistor, etc.) is input, the alarm light illu-
minates and control is as described in the table
below.
V e h i c l e - h e i g h t
control
HIGH
Control stop
Indication example
Indicates the vehicle-height
level
23; ERROR
Indicates that an error code
IS
being output.
Condition
Check condition
Contact the tester's (-) probe to
terminal 25. and the (+) probe to
terminal 36
Note
Even if the result is good here,
the sensor must not be judged to
be certainly good.
Contact the tester's (-) probe to
terminal 25, and the ( +) probe to
terminal 36, and check to be sure
that there is continuity; leave the
connections as
Connect the tester's (-1 probe to
each termrnal of the wiring
harness connector, and the ( +)
probe to terminal 36.
Separate the lever (of the height
sensor) from the rod, and slowly
move the lever up and down
Constantly
Malfunction
When the engine is stopped and left as it
l
the height of only the rear end decreases to
lower than the NORMAL vehicle height.
With the engrne running, the height of the rear
l
end is lower than the NORMAL vehicle height
l
NORMAL vehicle herght). the height of the rear
end becomes higher than the NORMAL height).
Switch acceptance
SPORT AUTO SOFT
Not accept
1111
1: ON, 0. OFF
0010
1: ON, 0. OFF
voltage
o v
o v
Standard
Continuity
(The
fluctuates)
No
Continuity
I
Continuity
they are.
Continuity
Note
,
IS