Mitsubishi 1989-1993 GALANT Service Manual page 956

ACTIVE-ELECTRONIC CONTROL SUSPENSION
CHECKING ACCORDING TO CHARTS CLASSIFIED BY THE MALFUNCTION SYMPTOM
[A] DIAGNOSTIC TROUBLE CODE NO.54
Yes
the height sensor correct?
Yes
Are the front strut and rear
shock absorber unit air spr-
ings in normal condition?
Yes
I s t h e s o u n d o f o p e r a t i o n No
heard from each solenoid
v a l v e n e c e s s a r y f o r t h e
vehicle-height adjustment?
Yes
Is the air pressure in the
vehicle-height a d j u s t m e n t No
pressure line 950 kPa (135
psi) or higher?
Yes
[B] DIAGNOSTIC TROUBLE CODE NO.55
Does the compressor func-
tion normally?
Yes
Is the air pressure in the
adjustment
vehicle-height
pressure line 760 kPa (108
psi) or lower?
Yes
No
justment time
(overload) overload).
Improper setting of the height
height sensor.
No
Malfunction of the rolling
(become folded)
The solenoid valves remain
closed, or there is air leakage
valve seat.
Damaged or disconnected
wiring of the high-pressure
switch, or incorrect vehicle
-height adjustment pressure
line.
Control unit malfunction.
No
High-pressure
shorted
Air leakage.
TSB Revision
Unload the vehicle and turn
(due to
restart the engine and check
whether or not the system
functions normally.
l
l
Repair the rolling diaphragm,
or replace the shock absorber
unit.
l
l
Replace the control unit.
l
is Refer to troubleshooting hint
switch
I
Correct the installation
position of the height sen-
sor, or adjust the vehicle
-height sensor rod.
Check the height sensor.
Refer to troubleshooting
hints [IO] and
classified by circuit.
Check the high-pressure
switch circuit.
hint [5] classified by circuit.
Correct the clogging pro-
blem, or replace the air
tube.
Power is not supplied to
the compressor.
Refer to troubleshooting
hint [18] classified by cir-
cuit.
pression.