Control System (HVAC): Diagnosis Mazda 5 I рестайлинг

AIR MIX ACTUATOR INSPECTION [FULL-AUTO AIR CONDITIONER]

Scheme 10

Scheme 11

1. Connect battery positive voltage to air mix actuator terminal D (or F), connect terminal F (or D) 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. TERMINALS REFERENCE CHART Terminal Air mix actuator operation D F B+ Ground HOT-->COLD Ground B+ COLD-->HOT
2. Verify that the resistance between terminals B and C, and C and A 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 12

1. Disconnect the negative battery cable.
2. Remove the following parts: Column cover (See «COLUMN COVER REMOVAL/INSTALLATION»(ref-292888-S25932918152008080600000) .) Front heat duct (driver's side)
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.

AIRFLOW MODE ACTUATOR INSPECTION [FULL-AUTO AIR CONDITIONER]

Scheme 13

Scheme 14

1. Connect battery positive voltage to airflow mode actuator terminal D (or F), connect terminal F (or D) to ground, and then verity that the airflow mode actuator operates as shown in the table. If the operation condition is not normal, replace the airflow mode actuator. TERMINALS REFERENCE CHART Terminal Airflow mode actuator operation D F B+ Ground VENT --> DEFROSTER Ground B+ DEFROSTER --> VENT
2. Verify that the resistance between terminals A and C, and C and B matches the airflow mode actuator operation as shown in the graph. If the operation condition and resistance are not normal, replace the airflow mode actuator.

Scheme 15

1. Disconnect the negative battery cable.
2. Remove the center console (See «CENTER CONSOLE REMOVAL/INSTALLATION»(ref-292888-S27489237052008080600000) .)
3. Remove the dashboard bracket (See «DASHBOARD REMOVAL/INSTALLATION»(ref-292888-S03392767112008080600000) .)
4. Remove in the order indicated in the table.
5. Install in the reverse order of removal.

Scheme 16

1. Connect battery positive voltage to rear vent actuator terminal A (or B), connect terminal B (or A) to ground, and then verify that the rear vent actuator operates as shown in the table. If the operation condition is not normal, replace the rear vent actuator. TERMINALS REFERENCE CHART Terminal Rear vent actuator operation A B B+ Ground OFF-->ON Ground B+ ON-->OFF

FRONT BLOWER MOTOR INSPECTION [FULL-AUTO AIR CONDITIONER]

Connect battery positive voltage to front blower motor terminal A, connect terminal B to ground, and then verify its operation.

Scheme 17

1. If there is any malfunction, replace the front blower motor.

Scheme 18

1. Disconnect the negative battery cable.
2. Remove the center console (See «CENTER CONSOLE REMOVAL/INSTALLATION»(ref-292888-S27489237052008080600000) .)
3. Remove the rear blower unit (See «REAR BLOWER UNIT REMOVAL/INSTALLATION»(ref-292915-S33251244572008080600000) .)
4. Remove in the order indicated table.
5. Install in the reverse order of removal.

REAR BLOWER MOTOR INSPECTION [FULL-AUTO AIR CONDITIONER]

Connect battery positive voltage to rear blower motor terminal A, connect terminal B to ground, and then verify its operation.

Scheme 19

1. If there is any malfunction, replace the rear blower motor.

Scheme 20

1. Disconnect the negative battery cable.
2. Remove the side wall (See «SIDE WALL REMOVAL/INSTALLATION»(ref-292888-S04204557052008080600000) .)
3. Remove the under cover.
4. Remove in the order indicated in the table.
5. Install in the reverse order of removal.

Scheme 21

1. Verify that the continuity between the front power MOS FET terminals is as indicated in the table. If there is any malfunction, replace the front power MOS FET. If the front blower motor operation is not normal even though no malfunction can be verified, inspect the climate control unit. (See «CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER]»(ref-292890-S12037386222008080600000) .) TERMINALS REFERENCE CHART Tester lead Resistance (kilohm) + - A B infinity A C 6.9 B A Continuity detected B C Continuity detected C A 6.9 C B infinity

Scheme 22

1. Disconnect the battery cable.
2. Remove the center console (See «CENTER CONSOLE REMOVAL/INSTALLATION»(ref-292888-S27489237052008080600000) .)
3. Remove the order indicated table.
4. Install in the reverse order of removal.

REAR POWER METAL OXIDE SEMICONDUCTOR FIELD EFFECT TRANSISTOR (POWER MOS FET) INSPECTION [FULL-AUTO AIR CONDITIONER]

1. Verify that the continuity between the rear power MOS FET terminals is as indicated in the table. If there is any malfunction, replace the rear power MOS FET. If the rear blower motor operation is not normal even though no malfunction can be verified, inspect the climate control unit. (See «CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER]»(ref-292890-S12037386222008080600000) .) TERMINALS REFERENCE CHART Tester lead Resistance (kilohm) + - A B infinity A C 6.9 B A Continuity detected B C Continuity detected C A 6.9 C B infinity

Scheme 23

1. Disassemble in the order indicated in the table.
2. Assemble in the reverse order of disassembly.
3. Adjust the magnetic clutch clearance. (See «MAGNETIC CLUTCH ADJUSTMENT [FULL-AUTO AIR CONDITIONER]»(ref-292890-S28614992452008080600000) .)

Scheme 24

1. When removing or installing the bolt, hold the pressure plate in place as shown in the figure.
2. When installing a new A/C compressor body, replace the recommended bolt.

EVAPORATOR TEMPERATURE SENSOR INSPECTION [FULL-AUTO AIR CONDITIONER]

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

Scheme 25

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. If the resistance is not as shown in the graph, replace the evaporator temperature sensor.

Scheme 26

1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See «REFRIGERANT RECOVERY»(ref-292909-S16139566182008080600000) .) (See «REFRIGERANT CHARGING»(ref-292909-S28535448322008080600000) .)
3. Remove the clip and bracket.
4. Disconnect the refrigerant pressure switch connector.
5. Remove the cooler pipe No.1. Do not allow compressor oil to spill. (See «REFRIGERANT LINE REMOVAL/INSTALLATION»(ref-292915-S09864481632008080600000) .) 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.
6. Loosen the refrigerant pressure switch using two spanners.
7. Remove in the order indicated in the table.
8. Install in the reverse order of removal.
9. Perform the refrigerant system performance test.

CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER]

1. Connect the climate control unit connector.
2. Turn the ignition switch to the ON position.
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, replace the climate control unit.

Scheme 27

TERMINALS REFERENCE CHART

Scheme 28

Scheme 29

Scheme 30

1. Disconnect the negative battery cable.
2. Remove the console panel. (See «CENTER CONSOLE REMOVAL/INSTALLATION»(ref-292888-S27489237052008080600000) .)
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.

Scheme 31

Scheme 32

1. Remove the rear fan switch. (See «REAR FAN SWITCH REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER]»(ref-292890-S30266224512008080600000) .)
2. Verify that the continuity between the rear fan switch terminals is as indicated in the table. If not as indicated in the table, replace the rear fan switch.
3. Apply battery voltage to the rear fan switch terminal B, and connect terminal H to ground.
4. Apply battery voltage to the rear fan switch terminal B, and connect terminal I to ground.
5. Apply battery voltage to the rear fan switch terminal A, and connect terminal K to ground.
6. Verify that the LED illuminates. If there is any malfunction, replace the rear fan switch.

Scheme 33

Scheme 34

1. Disconnect the negative battery cable.
2. Remove the following parts: Side wall (See «SIDE WALL REMOVAL/INSTALLATION»(ref-292888-S04204557052008080600000) .) Shift lever component (MTX) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION»(ref-292950-S13529176852008080600000) .) Selector lever component (ATX) (See «SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION»(ref-292885-S14884822382008080600000) .) Front console (See «FRONT CONSOLE REMOVAL/INSTALLATION»(ref-292888-S22395177942008080600000) .) Front scuff plate inner (passenger's side) (See «FRONT SCUFF PLATE REMOVAL/INSTALLATION»(ref-292888-S11748287832008080600000) .) Front side trim (passenger's side) (See «FRONT SIDE TRIM REMOVAL/INSTALLATION»(ref-292888-S14675185142008080600000) .) Side panel, (passenger's side) (See «SIDE PANEL REMOVAL/INSTALLATION»(ref-292888-S04204557052008080600000) .) Glove compartment (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-292888-S03337365032008080600000) .) HF/TEL unit (with HF/TEL) (See «HANDS-FREE TELEPHONE (HF/TEL) UNIT REMOVAL/INSTALLATION»(ref-292927-S16152956342008080600000) .)
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.

Scheme 35

1. Connect battery positive voltage to air intake actuator terminal C (or G), connect terminal G (or E) 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. TERMINALS REFERENCE CHART Terminal Air intake actuator operation C E G B+ - Ground FRESH-->RECIRCULATE - Ground B+ RECIRCULATE-->FRESH

FRONT BLOWER MOTOR INSPECTION [MANUAL AIR CONDITIONER]

Connect battery positive voltage to blower motor terminal A, connect terminal B to ground, and then verify its operation.

Scheme 36

1. If there is any malfunction, replace the blower motor.

Scheme 37

Scheme 38

Scheme 39

1. Remove the battery and battery tray. (See «BATTERY REMOVAL/INSTALLATION [L3]»(ref-292887-S30644836642008080600000) .)
2. Remove the following parts: Front scuff plate inner (driver's side) (See «FRONT SCUFF PLATE REMOVAL/INSTALLATION»(ref-292888-S11748287832008080600000) .) Front side trim (driver's side) (See «FRONT SIDE TRIM REMOVAL/INSTALLATION»(ref-292888-S14675185142008080600000) .) Side wall (See «SIDE WALL REMOVAL/INSTALLATION»(ref-292888-S04204557052008080600000) .) Selector lever component (ATX) (See «SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION»(ref-292885-S14884822382008080600000) .) Shift lever component (MTX) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION»(ref-292950-S13529176852008080600000) .) Front console (See «FRONT CONSOLE REMOVAL/INSTALLATION»(ref-292888-S22395177942008080600000) .) Hood release lever (See «HOOD LATCH AND RELEASE LEVER REMOVAL/INSTALLATION»(ref-292928-S20037409122008080600000) .) Lower panel (See «LOWER PANEL REMOVAL/INSTALLATION»(ref-292888-S42810347612008080600000) .) Accelerator pedal (See «ACCELERATOR PEDAL REMOVAL/INSTALLATION [L3]»(ref-292889-S05522938432008080600000) .) Brake pedal (See «BRAKE PEDAL REMOVAL/INSTALLATION»(ref-292903-S13727824312008080600000) )
3. Disconnect the blower motor cooling pipe connected to the blower motor.
4. Disconnect the resistor connector.
5. Remove the resistor.
6. Affix the gummed tape to the thread hole area as shown in the figure. (Do not wrap the gummed tape around the backside of the resistor.)
7. Stick the screw into the thread hole.
8. Set the resistor to the A/C unit and temporarily tighten the hexagon head screw. CAUTION: While setting the resistor, be careful not to damage the pattern surface. Otherwise it could cause a resistor operation malfunction.
9. Tighten the lower screw.
10. Tighten the hexagon head screw.
11. Connect the resistor connector.
12. Connect the blower motor cooling pipe.
13. Install the following parts: Brake pedal (See «BRAKE PEDAL REMOVAL/INSTALLATION»(ref-292903-S13727824312008080600000) .) Accelerator pedal (See «ACCELERATOR PEDAL REMOVAL/INSTALLATION [L3]»(ref-292889-S05522938432008080600000) ) Lower panel (See «LOWER PANEL REMOVAL/INSTALLATION»(ref-292888-S42810347612008080600000) .) Hood release lever (See «HOOD LATCH AND RELEASE LEVER REMOVAL/INSTALLATION»(ref-292928-S20037409122008080600000) .) Front console (See «FRONT CONSOLE REMOVAL/INSTALLATION»(ref-292888-S22395177942008080600000) .) Selector lever component (ATX) (See «SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION»(ref-292885-S14884822382008080600000) .) Shift lever component (MTX) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION»(ref-292950-S13529176852008080600000) .) Side wall (See «SIDE WALL REMOVAL/INSTALLATION»(ref-292888-S04204557052008080600000) .) Front side trim (driver's side) (See «FRONT SIDE TRIM REMOVAL/INSTALLATION»(ref-292888-S14675185142008080600000) .) Front scuff plate inner (driver's side) (See «FRONT SCUFF PLATE REMOVAL/INSTALLATION»(ref-292888-S11748287832008080600000) .)
14. Install the battery and battery tray. (See «BATTERY REMOVAL/INSTALLATION [L3]»(ref-292887-S30644836642008080600000) .)

Scheme 40

1. Verify that the resistance between the resistor terminals is as shown in the table. If there is any malfunction, replace the resistor. TERMINALS REFERENCE CHART Terminal Resistance (ohm) A-D 0.27-0.30 A-B 0.77-0.87 A-C 3.05-3.49

Scheme 41

1. Disassemble in the order indicated in the table.
2. Assemble in the reverse order of disassembly.
3. Adjust the magnetic clutch clearance. (See «MAGNETIC CLUTCH ADJUSTMENT [MANUAL AIR CONDITIONER]»(ref-292890-S34225128502008080600000) .)

Scheme 42

1. When removing or installing the bolt, hold the pressure plate in place as shown in the figure.
2. When installing a new A/C compressor body, replace the recommended bolt.

EVAPORATOR TEMPERATURE SENSOR INSPECTION [MANUAL AIR CONDITIONER]

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

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. If the resistance is not as shown in the graph, replace the evaporator temperature sensor.

Scheme 43

1. Disconnect the negative battery cable.
2. Discharge the refrigerant from the system. (See «REFRIGERANT RECOVERY»(ref-292909-S16139566182008080600000) .) (See «REFRIGERANT CHARGING»(ref-292909-S28535448322008080600000) .)
3. Remove the clip and bracket.
4. Disconnect the refrigerant pressure switch connector.
5. Remove the cooler pipe No.1. Do not allow compressor oil to spill. (See «REFRIGERANT LINE REMOVAL/INSTALLATION»(ref-292915-S09864481632008080600000) .) 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.
6. Loosen the refrigerant pressure switch using two spanners.
7. Remove in the order indicated in the table.
8. Install in the reverse order of removal.
9. Perform the refrigerant system performance test.

CLIMATE CONTROL UNIT INSPECTION [MANUAL AIR CONDITIONER]

1. Connect the climate control unit connector.
2. Turn the ignition switch to the ON position.
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, replace the climate control unit.

Scheme 44

CLIMATE CONTROL UNIT CONNECTOR TERMINALS REFERENCE

Scheme 45

Scheme 46

1. Set the temperature control dial at middle position (MAX HOT-MAX COLD). CAUTION: If the air mix wire is set without first fixing the air mix link position, it is possible that the air mix door cannot be switched normally.
2. Install the wire clamp as it was originally installed.
3. Connect the air mix wire to air mix link.
4. Clamp the air mix wire to wire clamp.
5. Verify that the temperature control dial can move its full stroke.

Scheme 47

1. Set the airflow mode selector dial at defroster. CAUTION: If the airflow mode wire is set without first fixing the airflow mode main link position, it is possible that the airflow mode door cannot be switched normally.
2. Install the wire clamp as it was originally installed.
3. Connect the airflow mode wire to airflow mode main link.
4. Clamp the airflow mode wire to wire clamp.
5. Verify that the airflow mode selector dial can move its full stroke.

Scheme 48

Scheme 49

1. Remove the climate control unit.
2. Verify that the continuity between the fan switch terminals is as indicated in the table. If there is any malfunction, replace the fan switch.