Control System - HVAC (Full Auto Air Conditioner): Diagnosis Mazda 3 BL рестайлинг

AIR INTAKE ACTUATOR INSPECTION [FULL-AUTO AIR CONDITIONER]

1. Connect battery positive voltage to air intake actuator terminal B (or C), connect terminal C (or B) to ground, and then verify that the air intake actuator operates as shown in the table. If the operation condition is not normal, replace the air intake actuator.

Air Intake Actuator Operation Chart. Scheme 4

Scheme 5

Scheme 6

1. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-520388-S24063200782013010300000).) (See «BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO]»(ref-520412-S07601908282013010300000).)
2. Disconnect the connector.
3. Remove the hook (1), remove the rod (2) from the air mix actuator link. (Scheme 5): Hook, Rod And Air Mix Actuator Link
4. Remove the screw. (Scheme 6): Driver-Side Air Mix Actuator And Screw
5. Remove the driver-side air mix actuator.
6. Install in the reverse order of removal.

Scheme 7

1. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-520388-S24063200782013010300000).) (See «BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO]»(ref-520412-S07601908282013010300000).)
2. Remove the following parts: Front scuff plate (Passenger-side) (See «FRONT SCUFF PLATE REMOVAL/INSTALLATION»(ref-520454-S34787470772013010300000).) Front side trim (Passenger-side) (See «FRONT SIDE TRIM REMOVAL/INSTALLATION»(ref-520454-S10636860092013010300000).) Dashboard under cover (See «DASHBOARD UNDER COVER REMOVAL/INSTALLATION»(ref-520454-S21271611252013010300000).) Glove compartment (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-520454-S00904275812013010300000).) Lower panel (Passenger side) (See «LOWER PANEL REMOVAL/INSTALLATION»(ref-520454-S41081192382013010300000).) Shower duct (Passenger side) (See «A/C UNIT REMOVAL/INSTALLATION»(ref-520443-S01420897172013010300000).)
3. Disconnect the connector.
4. Remove the screw. (Scheme 7): Connector, Screw And Passenger-Side Air Mix Actuator
5. Remove the passenger-side air mix actuator.
6. Install in the reverse order of removal.

AIR MIX ACTUATOR INSPECTION [FULL-AUTO AIR CONDITIONER]

Scheme 8

Scheme 9

1. Connect battery positive voltage to air mix actuator terminal C (or B), connect terminal B (or C) to ground, and then verify that the air mix actuator operates as shown in the table. If the operation condition is not normal, replace the air mix actuator. (Scheme 8): Air Mix Actuator Operation Chart Terminal Air mix actuator operation B C B+ Ground COLD --> HOT Ground B+ HOT --> COLD
2. Verify that the resistance between terminals F and G, E and F matches the air mix actuator operation as shown in the graph. If the operation condition and resistance are not normal, replace the air mix actuator. (Scheme 9): Air Mix Actuator Terminals Resistance Graph

Scheme 10

Scheme 11

1. Connect battery positive voltage to air mix actuator terminal C (or B), connect terminal B (or C) to ground, and then verify that the air mix actuator operates as shown in the table. If the operation condition is not normal, replace the air mix actuator. (Scheme 10): Air Mix Actuator Operation Chart Terminal Air mix actuator operation B C B+ Ground HOT --> COLD Ground B+ COLD --> HOT
2. Verify that the resistance between terminals F and G, E and F matches the air mix actuator operation as shown in the graph. If the operation condition and resistance are not normal, replace the air mix actuator. (Scheme 11): Air Mix Actuator Terminals Resistance Graph

Scheme 12

1. Set the air intake mode to FRESH.
2. Set the air mix mode to MAX COLD.
3. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-520388-S24063200782013010300000).) (See «BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO]»(ref-520412-S07601908282013010300000).)
4. Remove the following parts: Front doors (See «FRONT DOOR REMOVAL/INSTALLATION»(ref-520502-S29761468942013010300000).) Front scuff plate (See «FRONT SCUFF PLATE REMOVAL/INSTALLATION»(ref-520454-S34787470772013010300000).) Front side trim (See «FRONT SIDE TRIM REMOVAL/INSTALLATION»(ref-520454-S10636860092013010300000).) Dashboard under cover (See «DASHBOARD UNDER COVER REMOVAL/INSTALLATION»(ref-520454-S21271611252013010300000).) Glove compartment (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-520454-S00904275812013010300000).) Upper panel (See «UPPER PANEL REMOVAL/INSTALLATION»(ref-520454-S17814587652013010300000).) Shift lever knob (MTX) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [G66M-R]»(ref-520488-S03861652532013010300000).) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [A26M-R]»(ref-520490-S28221261652013010300000).) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [C66M-R]»(ref-520489-S37301789532013010300000).) Selector lever knob (ATX) (See «AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION»(ref-520491-S31259650412013010300000).) Shift panel (See «SHIFT PANEL REMOVAL/INSTALLATION»(ref-520454-S17124509942013010300000).) Side wall (See «SIDE WALL REMOVAL/INSTALLATION»(ref-520454-S11769586082013010300000).) Console (See «CONSOLE REMOVAL/INSTALLATION»(ref-520454-S28438507612013010300000).) Shift lever component (MTX) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [G66M-R]»(ref-520488-S03861652532013010300000).) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [A26M-R]»(ref-520490-S28221261652013010300000).) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [C66M-R]»(ref-520489-S37301789532013010300000).) Selector lever component (ATX) (See «AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION»(ref-520491-S31259650412013010300000).) Hood release lever (See «HOOD LATCH AND RELEASE LEVER REMOVAL/INSTALLATION»(ref-520433-S28071592822013010300000).) Lower panel (See «LOWER PANEL REMOVAL/INSTALLATION»(ref-520454-S41081192382013010300000).) Knee bolster (See «KNEE BOLSTER REMOVAL/INSTALLATION»(ref-520454-S27123388922013010300000).) Driver-side air bag module (See «DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM]»(ref-520390-S38458334842013010300000).) (See «DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM]»(ref-520390-S30398979032013010300000).) Steering wheel (See «STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [WITHOUT ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]»(ref-520445-S38694288302013010300000).) (See «STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [WITH ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]»(ref-520445-S21804587892013010300000).) Column cover (See «COLUMN COVER REMOVAL/INSTALLATION»(ref-520454-S20642177192013010300000).) Combination switch (See «COMBINATION SWITCH REMOVAL/INSTALLATION»(ref-520371-S40136905382013010300000).) Joint cover (See «STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [WITHOUT ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]»(ref-520445-S38694288302013010300000).) (See «STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [WITH ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]»(ref-520445-S21804587892013010300000).) Steering shaft (See «STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [WITHOUT ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]»(ref-520445-S38694288302013010300000).) (See «STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION [WITH ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]»(ref-520445-S21804587892013010300000).) Center panel (See «CENTER PANEL REMOVAL/INSTALLATION»(ref-520454-S30556586742013010300000).) Audio unit (See «AUDIO UNIT REMOVAL/INSTALLATION»(ref-520392-S39809031982013010300000).) Climate control unit (See «CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER]»(ref-520438-S23945830732013010300000).) Instrument cluster (See «INSTRUMENT CLUSTER REMOVAL/INSTALLATION»(ref-520387-S33083702672013010300000).) Center cover (See «CENTER COVER REMOVAL/INSTALLATION»(ref-520454-S03838017672013010300000).) Dashboard upper panel (See «DASHBOARD UPPER PANEL REMOVAL/INSTALLATION»(ref-520454-S05052835622013010300000).) Hole cover (See «HOLE COVER REMOVAL/INSTALLATION»(ref-520454-S27042200702013010300000).) Information display (See «INFORMATION DISPLAY REMOVAL/INSTALLATION»(ref-520387-S03721336672013010300000).) A-pillar trim (See «A-PILLAR TRIM REMOVAL/INSTALLATION»(ref-520454-S23919795892013010300000).) Front fender molding (See «COWL GRILLE REMOVAL/INSTALLATION»(ref-520448-S03226136712013010300000).) Windshield wiper arm and blade (See «WINDSHIELD WIPER ARM AND BLADE REMOVAL/INSTALLATION»(ref-520457-S22760724222013010300000).) Cowl grille (See «COWL GRILLE REMOVAL/INSTALLATION»(ref-520448-S03226136712013010300000).) Windshield wiper motor (See «WINDSHIELD WIPER MOTOR REMOVAL/INSTALLATION»(ref-520457-S41944567142013010300000).) Rear heat duct (1) (See «REAR HEAT DUCT REMOVAL/INSTALLATION»(ref-520443-S38287141522013010300000).) Shower ducts (See «A/C UNIT REMOVAL/INSTALLATION»(ref-520443-S01420897172013010300000).) Heater case (See «A/C UNIT REMOVAL/INSTALLATION»(ref-520443-S01420897172013010300000).)
5. Remove the nuts and bolts for installing the dashboard to the body.
6. Remove the nuts and bolts for installing the A/C unit to the dashboard.
7. Remove the accelerator pedal. (See «ACCELERATOR PEDAL REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-520380-S21553458192013010300000).) (See «ACCELERATOR PEDAL REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO]»(ref-520406-S15113497872013010300000).)
8. Disconnect the following connectors: Blower motor connector Power MOS FET connector Evaporator temperature sensor connector Air intake actuator connector Air mix actuator connector Airflow mode actuator connector
9. Remove the dashboard. (See «DASHBOARD REMOVAL/INSTALLATION»(ref-520454-S25921094582013010300000).)
10. Remove the airflow mode rod from the airflow mode actuator.
11. Remove the screw. (Scheme 12): Identifying Screw And Airflow Mode Actuator
12. Remove the airflow mode actuator. (See «AIRFLOW MODE ACTUATOR DISASSEMBLE NOTE»(ref-520438-S22219157472013010300000).)
13. Install in the reverse order of removal.

Scheme 13

1. Remove the airflow mode actuator bracket as shown in the figure. (Scheme 13): Identifying Airflow Mode Actuator And Bracket

AIRFLOW MODE ACTUATOR INSPECTION [FULL-AUTO AIR CONDITIONER]

Scheme 14

Scheme 15

1. Connect battery positive voltage to airflow mode actuator terminal D (or F), connect terminal F (or D) to ground, and then verify that the airflow mode actuator operates as shown in the table. If the operation condition is not normal, replace the airflow mode actuator. (Scheme 14): Airflow Mode Actuator Operation Chart Terminal Airflow mode actuator operation D F B+ Ground DEFROSTER --> VENT Ground B+ VENT --> DEFROSTER
2. Verify that the resistance between terminals B and C, C and A matches the airflow mode actuator operation as shown in the graph. (Scheme 15): Air Mix Actuator Terminals Resistance Graph If the operation condition and resistance are not normal, replace the airflow mode actuator.

EVAPORATOR TEMPERATURE SENSOR INSPECTION [FULL-AUTO AIR CONDITIONER]

Note. Inspect the evaporator temperature sensor when it is installed to the A/C unit.

Scheme 16

1. Set the fan speed MAX HI.
2. Set the temperature control at MAX COLD.
3. Set the RECIRCULATE mode.
4. Turn the A/C switch off.
5. Close all doors and windows.
6. Wait for 5 min.
7. Disconnect the evaporator temperature sensor connector.
8. Measure the temperature at the blower inlet.
9. Measure the resistance between the evaporator temperature sensor terminals. see scheme 60: Evaporator Temperature Sensor Resistance/Temperature Graph If the resistance is not as shown in the graph, replace the evaporator temperature sensor.

Connecting Battery Voltage To Passenger Compartment Temperature Sensor Terminal A And Grounding Terminal C. Scheme 17

1. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-520388-S24063200782013010300000).) (See «BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO]»(ref-520412-S07601908282013010300000).)
2. Discharge the refrigerant. (See «REFRIGERANT CHARGING»(ref-520437-S36735399982013010300000).)
3. Disconnect the refrigerant pressure sensor connector. CAUTION: If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always immediately plug all open fittings after removing any refrigeration cycle parts to keep moisture or foreign material out of the cycle.
4. Loosen the refrigerant pressure sensor using two spanners.
5. Remove the refrigerant pressure sensor. (See «REFRIGERANT PRESSURE SENSOR INSTALLATION NOTE»(ref-520438-S33604233902013010300000).) see scheme 61: Identifying Refrigerant Pressure Sensor And Connector Tightening torque 10-11 N.m {102-112 kgf.cm, 89-97 in.lbf}
6. Install in the reverse order of removal.
7. Perform the refrigerant system performance test. (See «REFRIGERANT SYSTEM PERFORMANCE TEST»(ref-520437-S04122794112013010300000).)

CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER]

1. Remove the climate control unit with the connector connected. (See «CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER]»(ref-520438-S23945830732013010300000) .)
2. Switch the ignition to ON.
3. Connect the negative (-) lead of the tester to body ground.
4. By inserting the positive (+) lead of the tester into each climate control unit terminal, measure the voltage according to the terminal voltage table. If there is any malfunction, inspect the parts under "Inspection item (s)". If the parts under "Inspection item (s)" are found to be normal (except for terminal 1M), replace the climate control unit. For terminal 1M, first try replacing the power MOS FET. If there is still any malfunction, replace the climate control unit.

Identifying Climate Control Unit Connector Terminals. Scheme 18

Evaporator Temperature Sensor Graph. Scheme 19