Control System (HVAC): Overview Mazda CX-7 I facelift

Scheme 1

For callouts, see next figure.

Scheme 2

Scheme 3

1. Disconnect the negative battery cable.
2. Remove the glove compartment. (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-343786-S18889764722009101500000) ).
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.

Scheme 4

Scheme 5

1. Connect battery positive voltage to terminal D or F and ground to terminal F or D of the air intake actuator.
2. Verify that the air intake actuator operates as shown below. If there is any malfunction, replace the air intake actuator. CONNECTION MOVEMENT REFERENCE Connection Movement B+ GND D F RECIRCULATE --> FRESH F D FRESH --> RECIRCULATE

Scheme 6

1. Disconnect the negative battery cable.
2. Remove the following parts: Console panel (See «CONSOLE PANEL REMOVAL/INSTALLATION»(ref-343786-S08749156142009101500000) ). Console (See «CONSOLE REMOVAL/INSTALLATION»(ref-343786-S27142773812009101500000) ). Front scuff plate inner (See «FRONT SCUFF PLATE REMOVAL/INSTALLATION»(ref-343786-S38441409102009101500000) ). Front side trim (See «FRONT SIDE TRIM REMOVAL/INSTALLATION»(ref-343786-S15930681492009101500000) ). Dashboard under cover Glove compartment (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-343786-S18889764722009101500000) ). Hood release lever (See «HOOD LATCH AND RELEASE LEVER REMOVAL/INSTALLATION»(ref-343765-S32881423572009101500000) ). Lower panel (See «LOWER PANEL REMOVAL/INSTALLATION»(ref-343786-S13450056682009101500000) ). Center panel (See «CENTER PANEL REMOVAL/INSTALLATION»(ref-343786-S24939434152009101500000) ). Audio unit (See «AUDIO UNIT REMOVAL/INSTALLATION»(ref-343789-S01824972822009101500000) ). Climate control unit (See «CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER]»(ref-343768-S30108057342009101500000).) (See «CLIMATE CONTROL UNIT REMOVAL [MANUAL AIR CONDITIONER]»(ref-343768-S28011108282009101500000).) (See «CLIMATE CONTROL UNIT INSTALLATION [MANUAL AIR CONDITIONER]»(ref-343768-S27913928022009101500000).) Knee bolster (See «KNEE BOLSTER REMOVAL/INSTALLATION»(ref-343786-S21244352492009101500000) ). Meter hood (See «METER HOOD REMOVAL/INSTALLATION»(ref-343786-S18230287562009101500000) ). Column cover (See «COLUMN COVER REMOVAL/INSTALLATION»(ref-343786-S34448879892009101500000) ). Instrument cluster (See «INSTRUMENT CLUSTER REMOVAL/INSTALLATION»(ref-343771-S15588745122009101500000) ). Driver-side air bag module (See «DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION»(ref-343795-S14266326412009101500000) ). Steering wheel (See «STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION»(ref-343793-S24064150822009101500000) ). Combination switch (See «COMBINATION SWITCH REMOVAL/INSTALLATION»(ref-343766-S16291820622009101500000) ). Steering shaft (See «STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION»(ref-343793-S24064150822009101500000) ). A-pillar lower trim (See «A-PILLAR LOWER TRIM REMOVAL/INSTALLATION»(ref-343786-S19089065762009101500000) ). A-pillar trim (See «A-PILLAR TRIM REMOVAL/INSTALLATION»(ref-343786-S38477671872009101500000) ). Dashboard (See «DASHBOARD REMOVAL/INSTALLATION»(ref-343786-S09754807992009101500000) ).
3. Remove the blower motor. (See «BLOWER MOTOR REMOVAL/INSTALLATION»(ref-343768-S23610126992009101500000).)
4. Remove the power MOS FET (Full-auto air conditioner) or resistor. (Manual air conditioner) (See «POWER METAL OXIDE SEMICONDUCTOR FIELD EFFECT TRANSISTOR (POWER MOS FET»(ref-343768-S39832977842009101500000) ) REMOVAL/INSTALLATION.) (See «RESISTOR REMOVAL/INSTALLATION»(ref-343768-S20172986282009101500000).)
5. Remove the blower unit installation nuts.
6. Remove the screw securing the duct (2) to the A/C unit, by inserting a phillips screwdriver into the hole made after removing the blower motor.
7. Remove the screw securing the duct (2) to the A/C unit.
8. Remove the duct (2).
9. Remove in the order indicated in the table.
10. Install in the duct (2).
11. Install the two outer screws, securing the duct (2) to the A/C unit.
12. Install the screw on the end of the phillips screwdriver with the packing tape. CAUTION: If the packing tape remains in the duct (2), it may become a source of noise. Wind up the packing tape to prevent pinching when tightening the screw.
13. Install the duct (2) to the A/C unit by inserting a phillips screwdriver, with the screw, into the hole made after removing the blower motor.
14. Pull out the Phillips screwdriver together with the packing tape.
15. Install in the reverse order of removal.

See also:
• REFRIGERANT RECOVERY
• REFRIGERANT CHARGING
• REFRIGERANT SYSTEM PERFORMANCE TEST