Mazda RX-8 Workshop Manual page 2494

Is the magnetic clutch clearance
normal?
16 INSPECT FUSE
Are A/C relay power supply fuses
normal?
17 INSPECT WIRING HARNESS BETWEEN FUSE
BLOCK AND A/C RELAY FOR LACK OF
CONTINUITY
Turn the ignition switch to the ON
position.
Test voltages at the following
terminals of A/C relay.
Are voltages approx. 12 V?
18 INSPECT TO SEE WHETHER MALFUNCTION
IS IN A/C RELAY OR WIRING HARNESS
(BETWEEN A/C RELAY AND MAGNETIC
CLUTCH)
Test voltage at the following
terminal of A/C relay:
Is voltage approx. 12 V?
19 CONFIRM THAT MALFUNCTION SYMPTOMS
DO NOT RECUR AFTER REPAIR
Does cool air blow out? (Are the
results of refrigerant system
performance test normal?)
Terminal E (A/C
relay control
signal)
Terminal D (A/C
control signal)
Terminal C
(magnetic clutch
operation signal)
to Step 19.
(See MAGNETIC CLUTCH ADJUSTMENT
[MANUAL AIR CONDITIONER].)
YesGo to next step.
No Replace fuse, then go to Step 19. If fuse
blows immediately, go to next step.
YesGo to next step.
No Repair wiring harness between fuse block and
A/C relay, then go to Step 19.
YesInspect wiring harness between A/C relay and
magnetic clutch.
If above wiring harness is
normal, go to next step.
If above wiring harness
malfunctions, repair wiring
harness, then go to the next
step.
No Replace A/C relay, then go to the next step.
YesTroubleshooting completed. Explain repairs to
customer.
No Recheck malfunction symptoms, then repeat
from Step 1 if malfunction recurs.