Mazda RX-8 Workshop Manual page 2438

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2011 - RX-8 - HVAC
DTC 06, 10, 12, 18, 21
DTC 06, 10,
A/C amplifier (sensor ground) system inspection
12, 18, 21
POSSIBLE
CAUSE
Diagnostic Procedure
STEP
1 INSPECT SENSOR GROUND CIRCUIT FOR
OPEN CIRCUIT
Disconnect the A/C amplifier connector (16-pin) and
the evaporator temperature sensor connector.
Is there continuity between A/C amplifier connector
(16-pin) terminal 2N and evaporator temperature
sensor connector terminal A?
Connector or terminal malfunction
Open circuit in wiring harness between A/C amplifier connector terminal 2N
and evaporator temperature sensor connector terminal A
Open circuit in wiring harness between A/C amplifier connector terminal 2N
and ambient temperature sensor connector terminal A
Open circuit in wiring harness between A/C amplifier connector terminal 2N
and passenger compartment temperature sensor connector terminal B
Open circuit in wiring harness between A/C amplifier connector terminal 2N
and air mix actuator connector terminal A
Open circuit in wiring harness between A/C amplifier connector terminal 2N
and airflow mode actuator connector terminal C
INSPECTION ACTION
YesInspect the connection at
the A/C amplifier connector
(16-pin).
No Repair the wiring harness.