Mazda RX-8 Workshop Manual page 2477

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2011 - RX-8 - HVAC
DTC 58
DTC 58 Air mix actuator (motor lock) system inspection
POSSIBLE
CAUSE
Diagnostic Procedure
STEP
INSPECT AIR MIX ACTUATOR OPERATION
1
Disconnect the air mix actuator connector.
Connect battery positive voltage to air mix
actuator terminal F (or terminal G) and ground to
terminal G (or terminal F).
Does the air mix actuator operate?
INSPECT AIR MIX LINK OPERATION
2
Remove the air mix actuator.
Operate the air mix link manually.
Does the air mix link operate smoothly?
Air mix actuator malfunction
A/C unit (air mix link and air mix crank) malfunction
Connector or terminal malfunction
Open circuit in wiring harness between A/C amplifier connector terminals
1U and 1V
Short to ground in wiring harness between A/C amplifier connector
terminals 1U and 1V
INSPECTION ACTION
YesConnect the connector, then go to
Step 3.
No Go to the next step.
YesReplace the air mix actuator.
(See AIR MIX ACTUATOR
REMOVAL/INSTALLATION [FULL-
AUTO AIR CONDITIONER].)
No Replace the air mix link and the
air mix crank.