Subaru XT 1988 Service Manual page 802

SUSPENSION
4-1
Symptom
Trouble Cause
Ref.
Compressor mal-
Compressor keeps on running. Vehicle height See "Car
functions. (When engine is in operation, lowers if left alone
height
compressor keeps running over
with ignition switch decreases."
8 minutes if left alone without off for over 15
getting in and out of vehicle.) minutes.
Vehicle height does
Faulty pressure switch
not lower even
if left alone with
Faulty control unit
ignition switch off
Defective compressor
for over 15 minutes.
relay B2
Defective electric
I
circuit
Faulty compressor
Tank solenoid valve
Al0
broken or sticking
Air leaks from tank
A5
ASSY
Air line leaks air or
A2,A9
clogs
Compressor operates frequently. When ignition See "Car
(When engine is in operation,
switch is off, height
compressor operates frequently if vehicle height decreases."
left alone without getting in and lowers if left alone
out of vehicle for over 5 minutes.) for over 15 minutes.
When ignition
Faulty pressure switch
switch is off,
vehicle height does
Faulty control unit
B2
not lower even if
Defective electric
left alone for over
circuit
15 minutes.
Air leakage from tank
A5
ASSY
Compressor will not operate.
Compressor malfunctioning
(If compressor operates frequently
Faulty pressure switch
and its temperature rises, circuit
B3
breaker will operate to stop com-
Faulty control unit
pressor; if left as it is for some ti me
and its temperature drops, it will Defective electric circuit
restart.)
45