Subaru Legacy 2004 Service Manual page 3435

Step
11 CHECK POWER SUPPLY FOR MAGNET
CLUTCH.
1) Stop the engine and turn the A/C switch to
OFF.
2) Disconnect the harness connector of mag-
net clutch.
3) Start the engine and turn the A/C switch to
ON.
4) Turn the temperature control dial at maxi-
mum cool position.
5) Measure the voltage between magnet
clutch harness connector terminal and chassis
ground.
Connector & terminal
(F24) No. 1 (+) — Chassis ground (
12 CHECK HARNESS BETWEEN AUTO A/C
CONTROL MODULE AND ECM.
1) Stop the engine and turn the A/C switch to
OFF.
2) Measure the resistance between magnet
clutch harness connector terminal and chassis
ground.
Connector & terminal
(F24) No. 2 — Chassis ground:
Diagnostics for A/C System Malfunction
Is the voltage more than 10 V? Go to step 12.
$
):
Is the resistance less than 1
#?
AC(diag)-23
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
Check Yes
Check the com-
pressor. <Ref. to
AC-33, INSPEC-
TION, Compres-
sor.>
No
Check the harness
for open or short
circuit between A/
C relay and mag-
net clutch.
Repair the har-
ness.