Mitsubishi 1989 Galant, Service Manual

Page: 954 / 1273

ACTIVE-ELECTRONIC CONTROL SUSPENSION Troubleshootina
Diagnostic
trouble
code No
Malfunction
Vehicle condition Probable cause Action
52
Damaged or disconnected
The alarm light illuminates, l
Damaged or disconnected Troubleshoo
wiring of the left front or
and the attitude-control
wiring of the left front or ing hints
right front valve actuation
function and the vehicle-
right front valve coil.
classified by
circuit, or a malfunction of
height control function are l Damaged or disconnected circuit
an output transistor within
stopped.
wiring of the left front or
the ECU.
The damping force is held
right front valve circuit
to MEDIUM.
harness.
l
Disconnection of the
connector of the left front
or right front valve circuit.
l
ECU malfunction.
53
Damaged or disconnected The alarm light illuminates,
wiring of the left rear or right
l Damaged or disconnected Troubleshoot
and the attitude-control wiring of the left rear or
rear valve actuation circuit,
ing hints
function and, the vehicle- right rear valve coil. classified by
or a malfunction of an output
height control function are
transistor within the ECU.
l Damaged or disconnected circuit
stopped. wiring of the left rear or
The damping force is held right rear valve circuit
to MEDIUM. harness.
l Disconnection of the
connector of the left rear
or right rear valve circuit.
l
ECU malfunction.
54
55
Even though three The alarm light illuminates, Overloaded condition. Refer to
or more have passed for the and the attitude-control
l Improper adjustment of
Malfunction
vehicle-height adjustments function and the vehicle- the front or rear
of the front and the rear, and
Symptoms
height control function are
vehicle-height sensor.
Chart [A] on
the pressure within the
stopped. l Air-pressure line is
tank is
The damping force is held
sufficient (the high-pressure
clogged.
to MEDIUM.
l Malfunction of the front
switch is OFF), the
strut unit or the rear shock
vehicle-height adjustments
absorber unit air spring.
are not completed.
l
ECU malfunction.
Even though three minutes The alarm light illuminates,
l
Compressor malfunction.
Refer to
or more have passed for the and the attitude-control Damaged or
Malfunction
vehicle-height adjustments
function and the vehicle- disconnected wiring of
Symptoms
of the front and the rear, and height control function are the harness between the Chart on
with insufficient pressure stopped.
compressor relay and the
the high-pressure tank The damping force is held
compressor.
(the switch is
to MEDIUM. Malfunction of the air
ON), the vehicle-height
compression of
the
adjustments are not
compressor.
completed, or the
l Air leakage from the
compressor has operated
for four
high-pressure tank
minutes or longer.
(non-airtight connection
with the low-pressure
tank).
l
High-pressure switch is
fused.
The return pump is
Control functions are not Air leakage within the front Replace the
continuously activated
stopped (alarm lamp does (left or right) or rear (left or front or rear
(repeatedly starts and stops
not illuminate).
right) valve. solenoid
56
times), even though valve.
neither the attitude-control
function nor the
vehicle-height control
function has been initiated.
TSB Revision