Mazda RX-8 Workshop Manual page 2559

(potentiometer input signal) and air mix
actuator connector terminal E?
12* CHECK TO SEE WHETHER MALFUNCTION (SHORT
TO GROUND) IS IN WIRING HARNESS (BETWEEN
A/C AMPLIFIER AND AIR MIX ACTUATOR) OR
ELSEWHERE
Is there continuity between A/C amplifier
connector (16-pin) terminal 2D
(potentiometer input signal) and ground?
13* CHECK TO SEE WHETHER MALFUNCTION (SHORT
TO B+) IS IN WIRING HARNESS (BETWEEN A/C
AMPLIFIER AND AIR MIX ACTUATOR) OR
ELSEWHERE
Turn the ignition switch to ON position.
Test voltage at A/C amplifier connector
(16-pin) terminal 2D (potentiometer input
signal).
Is voltage approx. 12 V?
14* CHECK TO SEE WHETHER MALFUNCTION (LACK OF
CONTINUITY) IS IN WIRING HARNESS (BETWEEN
A/C AMPLIFIER AND AIR MIX ACTUATOR) OR
ELSEWHERE
Turn the ignition switch to LOCK position.
Is there continuity between following A/C
amplifier connector (16-PIN, 24-pin)
terminals and air mix actuator connector
terminals?
15 INSPECT A/C UNIT AIR MIX ACTUATOR LINK AND
CRANK
Is there grease on the link and crank?
16 INSPECT AIR MIX ACTUATOR
Inspect air mix actuator.
Is it normal?
Terminal 1V and terminal
G (motor drive signal)
Terminal 1U and terminal
F (motor drive signal)
YesRepair wiring harness between A/C
amplifier and air mix actuator, then go
to Step 19.
No Go to next step.
YesRepair wiring harness between A/C
amplifier and air mix actuator, then go
to Step 19.
No Go to next step.
YesGo to next step.
No Repair wiring harness between A/C
amplifier and air mix actuator, then go
to Step 19.
YesGo to next step.
No Apply grease, then go to Step 19.
YesGo to next step.
No Replace air mix actuator, then go to
Step 19. (See AIR MIX ACTUATOR