Control System (HVAC): Removal & Installation Mazda CX-9 I рестайлинг

FRONT EVAPORATOR TEMPERATURE SENSOR REMOVAL/INSTALLATION

1. Remove the front evaporator temperature sensor from the front A/C unit. (See «FRONT A/C UNIT DISASSEMBLY/ASSEMBLY»(ref-663011-S08774505052014101600000) .)

Scheme 54

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. Remove the glove compartment (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-663022-S35953709692014101600000) .)
8. Disconnect the front evaporator temperature sensor connector.
9. Measure the temperature at the blower inlet.
10. Measure the resistance between the front evaporator temperature sensor terminals. If the resistance is not as shown in the graph, replace the front evaporator temperature sensor.

Scheme 55

1. Disconnect the negative battery cable.
2. Remove the following parts: Decoration panel (See «DECORATION PANEL REMOVAL/INSTALLATION»(ref-663022-S35013114172014101600000) .) Front console box mat (See «FRONT CONSOLE BOX MAT REMOVAL/INSTALLATION»(ref-663022-S21869071382014101600000) .) Indicator panel (See «INDICATOR PANEL REMOVAL/INSTALLATION»(ref-663022-S05956493772014101600000) .) Front console box (See «FRONT CONSOLE BOX REMOVAL/INSTALLATION»(ref-663022-S12692561512014101600000) .) Side wall (See «SIDE WALL REMOVAL/INSTALLATION»(ref-663022-S26910641872014101600000) .) Dashboard undercover (See «DASHBOARD UNDER COVER REMOVAL/INSTALLATION»(ref-663022-S31534965712014101600000) .) Console panel (See «CONSOLE PANEL REMOVAL/INSTALLATION»(ref-663022-S28127850752014101600000) .) Console cover (See «CONSOLE COVER REMOVAL/INSTALLATION»(ref-663022-S08411145752014101600000) .) Console (See «CONSOLE REMOVAL/INSTALLATION»(ref-663022-S34706346452014101600000) .)
3. Disconnect the rear evaporator temperature sensor connector and remove it from the rear A/C unit.
4. Insert a flathead screwdriver as shown in the illustration and remove the clip by prying it off.
5. Remove the rear evaporator temperature sensor.
6. Install in the reverse order of removal.

Scheme 56

1. Measure the temperature at the blower inlet.
2. Measure the resistance between the rear evaporator temperature sensor terminals. If the resistance is not as shown in the graph, replace the rear evaporator temperature sensor.

Scheme 57

1. Disconnect the negative battery cable.
2. Discharge the refrigerant. (See REFRIGERANT RECOVERY .) (See REFRIGERANT CHARGING .)
3. Disconnect the refrigerant pressure sensor connector. CAUTION: If moisture or foreign material enters the refrigerant 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.
6. Install in the reverse order of removal.
7. Perform the refrigerant system performance test. (See REFRIGERANT SYSTEM PERFORMANCE TEST .)

Refrigerant Pressure Sensor Installation Note

1. Apply compressor oil to O-ring and connect the joint.

Scheme 58

1. Install the manifold gauge.
2. Verify the high-pressure side reading of the manifold gauge.
3. Follow the PCM inspection when measuring the other terminal voltage. (See «PCM INSPECTION [MZI-3.7]»(ref-663049-S38461691912014101600000) ) Terminal GND: 1.0 V or less Terminal +5: Approx. 5 V (Ignition switch on) Terminal OUTPUT: Verify that below graph as measure the terminal If each voltage is not normal, inspect the related wiring harness. If there is any malfunction, replace the related wiring harness. If wiring harness is normal, replace the refrigerant pressure sensor.

Scheme 59

1. Disconnect the negative battery cable.
2. Remove the following parts: Decoration panel (See «DECORATION PANEL REMOVAL/INSTALLATION»(ref-663022-S35013114172014101600000) .) Front console box mat (See «FRONT CONSOLE BOX MAT REMOVAL/INSTALLATION»(ref-663022-S21869071382014101600000) .) Indicator panel (See «INDICATOR PANEL REMOVAL/INSTALLATION»(ref-663022-S05956493772014101600000) .) Front console box (See «FRONT CONSOLE BOX REMOVAL/INSTALLATION»(ref-663022-S12692561512014101600000) .) Center panel (See «CENTER PANEL REMOVAL/INSTALLATION»(ref-663022-S15432009222014101600000) .)
3. Remove the screws.
4. Remove the front climate control unit.
5. Install in the reverse order of removal.