Basic System (HVAC): Diagnosis Mazda 2 II рестайлинг

CABIN AIR FILTER INSPECTION

1. Inspect for damage, excessive dirt, or foul smell. If the air filter is damaged, excessively dirty, or foul smelling, replace it.

Note. The air filter cannot be reused by cleaning it with water or compressed air.

EVAPORATOR INSPECTION

1. Remove the A/C unit. (See «A/C UNIT REMOVAL/INSTALLATION»(ref-517465-S12168246342012121200000) .)
2. Remove the evaporator from the A/C unit.
3. Inspect for cracks, damage, and oil leakage. If any problems are found, replace the evaporator.
4. Inspect for bent fins. If any are bent, use a flathead screwdriver to straighten them.

HEATER CORE INSPECTION

1. Remove the A/C unit. (See «A/C UNIT REMOVAL/INSTALLATION»(ref-517465-S12168246342012121200000) .)
2. Remove the heater core from the A/C unit.
3. Inspect for cracks, damage, and coolant leakage. If any problems are found, replace the heater core.
4. Inspect for bent fins. If any are bent, use a flathead screwdriver to straighten them.
5. Verify that the heater core inlet and outlet pipe are not distorted or damaged. Repair with pliers if necessary.

Scheme 4

Scheme 5

Scheme 6

Scheme 7

Scheme 8

Scheme 9

1. Disconnect the negative battery cable.
2. Remove the following parts: Rear console (See «REAR CONSOLE REMOVAL/INSTALLATION»(ref-517497-S31639085322012121200000).) Shift lever knob (MTX) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [F35M-R]»(ref-517501-S39688997572012121200000).) Side wall (See «SIDE WALL REMOVAL/INSTALLATION»(ref-517497-S42051367322012121200000).) Front console component (See «FRONT CONSOLE COMPONENT REMOVAL/INSTALLATION»(ref-517497-S35138574242012121200000).) Front scuff plate (LH) (See «FRONT SCUFF PLATE REMOVAL/INSTALLATION»(ref-517497-S16065429912012121200000).) Front side trim (LH) (See «FRONT SIDE TRIM REMOVAL/INSTALLATION»(ref-517497-S41539597602012121200000).) Hood release lever (See «HOOD LATCH AND RELEASE LEVER REMOVAL/INSTALLATION»(ref-517460-S14332073362012121200000).) Lower panel (driver-side) (See «LOWER PANEL REMOVAL/INSTALLATION»(ref-517497-S40475635322012121200000).) Knee bolster (See «KNEE BOLSTER REMOVAL/INSTALLATION»(ref-517497-S07677910962012121200000).) Heat duct (LH) (See «HEAT DUCT COMPONENT REMOVAL/INSTALLATION»(ref-517465-S38916655892012121200000).)
3. Remove the wiring harness clip from the brake pedal. (Scheme 4): Locating Wiring Harness Clip On Brake Pedal
4. Remove the brake pedal installation nuts. (Scheme 5): Locating Brake Pedal Nuts
5. Remove the snap pin and clevis pin. (Scheme 6): Identifying Snap Pin And Clevis Pin
6. Pull the power brake unit from the engine compartment side. (Scheme 7): Pulling Power Brake Unit From Engine Compartment Side
7. Pull the brake pedal outward while lifting it. (Scheme 8): Pulling Brake Pedal Outward And Lifting CAUTION: Apply only the specified grease to links and cranks. Otherwise abnormal noise or improper operation may result.
8. Remove in the order indicated in the table. (Scheme 9): Identifying Airflow Mode Link Set Components Removal Order
9. Install in the reverse order of removal.

Scheme 10

1. Disconnect the negative battery cable.
2. Remove the following parts: Glove compartment (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-517497-S18570108062012121200000).) Dashboard under cover (See «DASHBOARD UNDER COVER REMOVAL/INSTALLATION»(ref-517497-S06456173492012121200000).) Heat duct (RH) (See «HEAT DUCT COMPONENT REMOVAL/INSTALLATION»(ref-517465-S38916655892012121200000).) Rear console (See «REAR CONSOLE REMOVAL/INSTALLATION»(ref-517497-S31639085322012121200000).) Shift lever knob (MTX) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [F35M-R]»(ref-517501-S39688997572012121200000).) Side wall (See «SIDE WALL REMOVAL/INSTALLATION»(ref-517497-S42051367322012121200000).) Front console component (See «FRONT CONSOLE COMPONENT REMOVAL/INSTALLATION»(ref-517497-S35138574242012121200000).)
3. Disconnect the air mix wire. CAUTION: Apply only the specified grease to links and cranks. Otherwise abnormal noise or improper operation may result.
4. Remove in the order indicated in the table. (Scheme 10): Identifying Air Mix Link Set Components Removal Order
5. Install in the reverse order of removal.

Scheme 11

1. Disconnect the negative battery cable.
2. Remove the following parts: Glove compartment (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-517497-S18570108062012121200000).) Dashboard under cover (See «DASHBOARD UNDER COVER REMOVAL/INSTALLATION»(ref-517497-S06456173492012121200000).) Heat duct (RH) (See «HEAT DUCT COMPONENT REMOVAL/INSTALLATION»(ref-517465-S38916655892012121200000).) Rear console (See «REAR CONSOLE REMOVAL/INSTALLATION»(ref-517497-S31639085322012121200000).) Shift lever knob (MTX) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [F35M-R]»(ref-517501-S39688997572012121200000).) Boot panel (See «FRONT CONSOLE COMPONENT DISASSEMBLY/ASSEMBLY»(ref-517497-S16854851722012121200000).) Side wall (See «SIDE WALL REMOVAL/INSTALLATION»(ref-517497-S42051367322012121200000).) Front console component (See «FRONT CONSOLE COMPONENT REMOVAL/INSTALLATION»(ref-517497-S35138574242012121200000).) Front scuff plate (See «FRONT SCUFF PLATE REMOVAL/INSTALLATION»(ref-517497-S16065429912012121200000).) Front side trim (See «FRONT SIDE TRIM REMOVAL/INSTALLATION»(ref-517497-S41539597602012121200000).) Hood release lever (See «HOOD LATCH AND RELEASE LEVER REMOVAL/INSTALLATION»(ref-517460-S14332073362012121200000).) Lower panel (driver-side) (See «LOWER PANEL REMOVAL/INSTALLATION»(ref-517497-S40475635322012121200000).) Driver-side air bag module (See «DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION»(ref-517434-S24290337822012121200000).) Knee bolster (See «KNEE BOLSTER REMOVAL/INSTALLATION»(ref-517497-S07677910962012121200000).) Steering wheel (See «STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION»(ref-517483-S36596734772012121200000).) Column cover (See «COLUMN COVER REMOVAL/INSTALLATION»(ref-517497-S28954925772012121200000).) Meter hood (See «METER HOOD REMOVAL/INSTALLATION»(ref-517497-S06688219392012121200000).) Instrument cluster (See «INSTRUMENT CLUSTER REMOVAL/INSTALLATION»(ref-517450-S33673315542012121200000).) Combination switch (See «COMBINATION SWITCH REMOVAL/INSTALLATION»(ref-517509-S26871730712012121200000).) Center panel unit (See «CENTER PANEL UNIT REMOVAL/INSTALLATION»(ref-517455-S02022711012012121200000).) Climate control unit (See «CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER]»(ref-517453-S16187895192012121200000).) Shift lever component (MTX) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [F35M-R]»(ref-517501-S39688997572012121200000).) Selector lever component (ATX) (See «AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION»(ref-517496-S37097310912012121200000).) Interlock unit (ATX) (See «AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION»(ref-517496-S37097310912012121200000).) Lower panel (passenger-side) (See «LOWER PANEL REMOVAL/INSTALLATION»(ref-517497-S40475635322012121200000).) Side panel (See «SIDE PANEL REMOVAL/INSTALLATION»(ref-517497-S11977097702012121200000).) aa. A-pillar trim (See «A-PILLAR TRIM REMOVAL/INSTALLATION»(ref-517497-S09928645462012121200000).) ab. Windshield wiper arm and blade (See «WINDSHIELD WIPER ARM AND BLADE REMOVAL/INSTALLATION»(ref-517471-S29993174052012121200000).) ac. Cowl grille (See «COWL GRILLE REMOVAL/INSTALLATION»(ref-517470-S32798879672012121200000).) ad. Windshield wiper motor (See «WINDSHIELD WIPER MOTOR REMOVAL/INSTALLATION»(ref-517471-S02257979132012121200000).) ae. Sail garnish (See «SAIL GARNISH REMOVAL/INSTALLATION»(ref-517470-S08272166772012121200000).) af. Steering shaft cover (See «STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION»(ref-517483-S36596734772012121200000).) ag. Steering shaft (See «STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION»(ref-517483-S36596734772012121200000).)
3. Disconnect the dashboard wiring harness connector.
4. Disconnect the antenna feeder No.1 jack.
5. Remove the dashboard. (See «DASHBOARD REMOVAL/INSTALLATION»(ref-517497-S34477271542012121200000).)
6. Disconnect the air intake wire. (See «CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER]»(ref-517453-S16187895192012121200000).) CAUTION: Apply only the specified grease to links and cranks. Otherwise abnormal noise or improper operation may result.
7. Remove in the order indicated in the table. (Scheme 11): Identifying Air Intake Link Set Components Removal Order
8. Install in the reverse order of removal.

Scheme 12

1. Disconnect the negative battery cable.
2. Remove the following parts: Rear console (See «REAR CONSOLE REMOVAL/INSTALLATION»(ref-517497-S31639085322012121200000).) Shift lever knob (MTX) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [F35M-R]»(ref-517501-S39688997572012121200000).) Side wall (See «SIDE WALL REMOVAL/INSTALLATION»(ref-517497-S42051367322012121200000).) Front console component (See «FRONT CONSOLE COMPONENT REMOVAL/INSTALLATION»(ref-517497-S35138574242012121200000).) Front scuff plate (LH) (See «FRONT SCUFF PLATE REMOVAL/INSTALLATION»(ref-517497-S16065429912012121200000).) Front side trim (LH) (See «FRONT SIDE TRIM REMOVAL/INSTALLATION»(ref-517497-S41539597602012121200000).) Hood release lever (See «HOOD LATCH AND RELEASE LEVER REMOVAL/INSTALLATION»(ref-517460-S14332073362012121200000).) Driver's side lower panel (See «LOWER PANEL REMOVAL/INSTALLATION»(ref-517497-S40475635322012121200000).) Knee bolster (See «KNEE BOLSTER REMOVAL/INSTALLATION»(ref-517497-S07677910962012121200000).)
3. Using a flathead screwdriver, unhook the heat duct (LH) hooks and remove the heat duct (LH). (Scheme 12): Locating Heat Duct (LH) Hooks
4. Install in the reverse order of removal.

Scheme 13

1. Disconnect the negative battery cable.
2. Remove the following parts: Glove compartment (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-517497-S18570108062012121200000).) Dashboard under cover (See «DASHBOARD UNDER COVER REMOVAL/INSTALLATION»(ref-517497-S06456173492012121200000).)
3. Remove in the order indicated in the table. (Scheme 13): Identifying Heat Duct (RH) No.1 Removal Order
4. Install in the reverse order of removal.

Scheme 14

1. Disconnect the negative battery cable.
2. Remove the following parts: Glove compartment (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-517497-S18570108062012121200000).) Dashboard under cover (See «DASHBOARD UNDER COVER REMOVAL/INSTALLATION»(ref-517497-S06456173492012121200000).) Heat duct (RH) No.1 Rear console (See «REAR CONSOLE REMOVAL/INSTALLATION»(ref-517497-S31639085322012121200000).) Shift lever knob (MTX) (See «MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [F35M-R]»(ref-517501-S39688997572012121200000).) Side wall (See «SIDE WALL REMOVAL/INSTALLATION»(ref-517497-S42051367322012121200000).) Front console component (See «FRONT CONSOLE COMPONENT REMOVAL/INSTALLATION»(ref-517497-S35138574242012121200000).) Front scuff plate (RH) (See «FRONT SCUFF PLATE REMOVAL/INSTALLATION»(ref-517497-S16065429912012121200000).) Front side trim (RH) (See «FRONT SIDE TRIM REMOVAL/INSTALLATION»(ref-517497-S41539597602012121200000).) Passenger's side lower panel (See «LOWER PANEL REMOVAL/INSTALLATION»(ref-517497-S40475635322012121200000).)
3. Using a flathead screwdriver, unhook the heat duct (RH) hooks and remove the heat duct (RH) No.2. (Scheme 14): Locating Heat Duct (RH) No.2 Hooks
4. Install in the reverse order of removal.

Scheme 15

1. Disconnect the negative battery cable.
2. Remove the splash shield (RH).
3. Collect the refrigerant. (See «REFRIGERANT CHARGING»(ref-517463-S41137354962012121200000).)
4. Remove the drive belt. (See «DRIVE BELT REMOVAL/INSTALLATION [MZR 1.5]»(ref-517441-S26221146112012121200000).)
5. Remove the clip retaining the compressor wiring harness to the cooler hose (LO). CAUTION: If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise or other malfunction could occur. Always plug open fittings immediately after removing any refrigeration cycle parts.
6. Remove in the order indicated in the table. Do not allow remaining compressor oil in the A/C compressor and pipes to spill. (Scheme 15): A/C Compressor And Components With Torque Specifications
7. Install in the reverse order of removal.
8. Perform the refrigerant system performance test. (See «REFRIGERANT SYSTEM PERFORMANCE TEST»(ref-517463-S24642051802012121200000).)

CONDENSER INSPECTION

1. Inspect for cracks, damage, and oil leakage. If any are found, replace the condenser.
2. Inspect for fins clogged by dust. If any are clogged, remove the dust from the fins.
3. Inspect for bent fins. If any are bent, use a flathead screwdriver to straighten them.

Scheme 16

1. Disconnect the negative battery cable.
2. Collect the refrigerant. (See «REFRIGERANT CHARGING»(ref-517463-S41137354962012121200000).)
3. Remove the front bumper. (See «FRONT BUMPER REMOVAL/INSTALLATION»(ref-517472-S38449044742012121200000).)
4. Remove the seal board upper. (See «SEAL BOARD UPPER REMOVAL/INSTALLATION»(ref-517472-S02763983902012121200000).)
5. Remove the closing plate. (See «SHROUD PANEL REMOVAL/INSTALLATION»(ref-517472-S24416337802012121200000).) 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. Remove in the order indicated in the table. Do not allow compressor oil to spill. (Scheme 16): Receiver/Drier Components With Torque Specifications
7. Install in the reverse order of removal.
8. Perform the refrigerant system performance test. (See «REFRIGERANT SYSTEM PERFORMANCE TEST»(ref-517463-S24642051802012121200000).)

Scheme 17

1. Disconnect the block joint type pipes by grasping female side of the block with hand and holding firmly, then loosen the connection bolt. (Scheme 17): Disconnecting Block Joint Type Pipes By Grasping Female Side Of Block

Scheme 18

1. Tighten the bolt of joint by hand.
2. Connect the block joint type pipe by grasping the female side of the block with hand holding firmly, then tighten the connection bolt. (Scheme 18): Connecting Block Joint Type Pipe By Grasping Female Side Of Block
3. Tighten the joint to the specified torque.

Scheme 19

1. Disconnect the negative battery cable.
2. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [MZR 1.5]»(ref-517443-S15590813912012121200000).)
3. Remove in the order indicated in the table. (Scheme 19): Identifying Heater Hose Components Removal Order
4. Install in the reverse order of removal.

Scheme 20

1. While pressing the heater hose into the A/C unit side (1), pinch the quick connector retainer (2), then disconnect the heater hose from the A/C unit (3). (Scheme 20): Disconnecting Heater Hose From A/C Unit

Scheme 21

1. Insert the heater hose into the pipe of the A/C unit until a click is heard.
2. While pressing the heater hose quick connector against the A/C unit side, press in the push tab. (Scheme 21): Locating Heater Hose Quick Connector Push Tab
3. Verify that the heater hose cannot be pulled out from the A/C unit by lightly pulling the heater hose.

Scheme 22

1. Remove the battery. (See «BATTERY REMOVAL/INSTALLATION [MZR 1.5]»(ref-517452-S26026055392012121200000).)
2. Collect the refrigerant. (See «REFRIGERANT CHARGING»(ref-517463-S41137354962012121200000).)
3. Remove the ground from the engine mount No.3. (Scheme 22): Identifying Ground On Engine Mount No.3
4. Remove the air cleaner installation bolt and slide the air cleaner component aside. 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.
5. Remove in the order indicated in the table. Do not allow compressor oil to spill.
6. Install in the reverse order of removal.
7. Perform the refrigerant system performance test. (See «REFRIGERANT SYSTEM PERFORMANCE TEST»(ref-517463-S24642051802012121200000).)

Identifying Refrigerant Line Components Removal Order. Scheme 23

Scheme 24

1. Disconnect the block joint type pipes by grasping female side of the block with pliers or similar tool and holding firmly, then remove the connection bolt or nut. (Scheme 24): Disconnecting Block Joint Type Pipes By Grasping Female Side Of Block With Pliers

Scheme 25

Scheme 26

Scheme 27

1. Set the SST. (Scheme 25): Identifying Spring-Lock Coupling Type
2. While looking through the inspection hole of the SST, insert the protruding part of the SST until it makes contact with the cage section. (Scheme 26): Inserting Protruding Part Of SST Until It Makes Contact With Cage Section
3. Use the SST to disconnect the male pipe or hose from the female by pulling the male pipe or hose. (Scheme 27): Disconnecting Male Pipe Or Hose From Female By Pulling Male Pipe Or Hose NOTE: The male pipe or hose can be disconnected easily from the female pipe by pulling from the male pipe or hose while maintaining the pressure of the protruding part of the SST.