Mazda RX-8 Workshop Manual page 2539

for B+ signal normal?
3 INSPECT AIR INTAKE ACTUATOR
Inspect air intake actuator.
Are above items normal?
4* INSPECT WIRING HARNESS BETWEEN FUSE
BLOCK AND A/C AMPLIFIER FOR CONTINUITY
Disconnect A/C amplifier connector
(16-pin).
Turn ignition switch to ON position.
Test voltage at A/C amplifier
connector terminal 2A (B+ signal).
Is voltage approx. 12 V?
5* INSPECT WIRING HARNESS BETWEEN A/C
AMPLIFIER AND GROUND FOR VOLTAGE
Test voltage at A/C amplifier
connector terminal 2L (Ground).
Is voltage approx. 0V?
6 VERIFY WHETHER MALFUNCTION IS IN
BLOWER UNIT AIR INTAKE DOOR OR
ELSEWHERE
Turn ignition switch to LOCK
position.
Connect A/C amplifier connector
(16-pin).
Remove air intake actuator.
Is there grease on
link?
Is link securely and
properly
positioned?
Is link free of
obstructions?
circuit.
Repair or replace as
necessary. Install
appropriate amperage fuse.
YesGo to next step.
No Apply grease or install link properly and
securely, remove obstruction, then go to
Step 14.
YesGo to next step.
No Repair wiring harness between fuse block
and A/C amplifier, then go to Step 14.
YesGo to next step.
No Repair wiring harness between A/C amplifier
and ground, then go to Step 14.
YesGo to next step.
No Go to Step 12.