Control System (HVAC): Maintenance Mazda 6 GH

Reset Methods

1. After replacing the air mix actuator, make sure to complete the following reset procedure.

Automatic reset

1. Disconnect the negative battery cable, and then reconnect it. (AUTO switch indicator light flashes).

Controlled reset

1. Switch to on-board diagnostic mode. See «DIAGNOSTIC TROUBLE CODE NUMBER INSPECTION [L3, AJ].»(ref-288823-S40627794122008062500000)
2. While in present failure indication mode, press the DEFROSTER switch for & 3 s or more. (AUTO switch indicator light flashes).

Scheme 52

1. Disconnect the negative battery cable.
2. Remove the glove compartment.
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.

Scheme 53

Scheme 54

Scheme 55

1. Connect battery positive voltage to terminal E or F and ground to terminal F or E of the airflow mode actuator.
2. Verify that the airflow mode actuator operates as shown below. If not as specified, replace the airflow mode actuator. AIRFLOW MODE ACTUATOR OPERATION REFERENCE Connection Movement B+ GND E F VENT --> DEFROSTER F E DEFROSTER --> VENT
3. Verify that the resistance between the terminals of the airflow mode actuator is as shown in the graph. If not as specified, replace the airflow mode actuator.

Scheme 56

1. Turn the fan switch to OFF.
2. Turn the mode dial to VENT.
3. Turn the ignition switch to ON position. (engine ON)
4. Turn the fan switch 4th position.
5. Turn the mode dial from VENT to DEFROSTER.
6. Verify that the airflow mode actuator moves smoothly. If not as specified, inspect the airflow mode main link and sub link for clogging and deformity. If the actuator cannot move at all, go to voltage inspection.

Scheme 57

1. Turn the ignition switch to ON position. (engine OFF)
2. Verify that the voltage between the terminals of airflow mode actuator (harness-side) is as shown in the table. If not as specified, perform the harness inspection and mode switch inspection. See «MANUAL AIR CONDITIONER»(ref-288779-S30550886092008062500000) ). If as specified, replace the airflow mode actuator. AIRFLOW MODE ACTUATOR VOLTAGE SPECIFICATIONS Mode dial position Terminal Voltage (V) - B-GND 0 - B-F B+ VENT A-F 0 BI-LEVEL 3 HEAT 6 HEAT/DEF 9 DEFROSTER 12

Scheme 58

1. Disconnect the negative battery cable.
2. Remove in the order indicated in the table.
3. Install in the reverse order of removal.

Scheme 59

1. Connect battery positive voltage to terminal B and ground to terminal A of the blower motor and verify its operation. If not as specified, replace the blower motor.