Subaru XT 1988 Service Manual page 801

4-1
SUSPENSION
TROUBLESHOOTING
Symptom Trouble
Cause
Ref.
Car Ignition Front or rear of car rises if car is
Improper sea ling of affected air suspension
A7
height switch
left as it is. solenoid valve or tank solenoid valve
increases. OFF
Ignition Front or rear of car rises
Faulty vehicle height sensor
switch abnormally.
ON
Faulty control unit
Broken solenoid valve coil/air discharge
Bl
solenoid valve coil of affected air suspension
Faulty electrical circuit
I
Sticking solenoid valve/air discharge solenoid
Al0, A14
valve of affected air suspension
Clogged air line
A9
Car Ignition
Front of car height decreases when Air leakage from air pipe or joint on top of
Al
height switch car is left as it is. strut mount
decreases.
OFF
Air leakage from front solenoid valve
A7
Air leakage from front air suspension ASSY
A4
Rear of car height decreases when
Air leakage from rear solenoid valve or faulty
A7
car is left as it is.
seal
Air leakage from rear air suspension ASSY
A4
Ignition Front or rear of Compressor does
B3
switch car is
not operate.
ON abnormally low.
Compressor
Car returns to the
Air leakage from tank
A5
operates.
NORMAL position ASSY
when left
unattended with
Air leakage from air
A2
ignition switch ON
line
for 5 minutes.
Car returns to the
Faulty vehicle height
NORMAL position sensor
when left
unattended with
Faulty control unit
ignition switch ON
Bl
Broken solenoid valve
for 5 minutes.
coil
Fau Ity electrical circu it
Sticking solenoid valve Al0
Clogged air line
A9
Air leakage from air
line
A2
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