Nissan Altima 2007-2012 Service Manual: Compressor

Removal and Installation for Compressor - QR25DE Models

REMOVAL

1. Discharge the refrigerant. Refer to HA-24, "HFC-134a (R-134a) Service Procedure".

2. Remove the drive belt. Refer to EM-16, "Removal and Installation".

3. Remove the engine undercover.

4. Remove the front RH wheel and tire.

5. Remove the side cover from inside the front RH wheel well.

6. Remove the clip and reposition the power steering pipe out of the way.

7. Disconnect the compressor connector.

8. Disconnect the high-pressure flexible hose and low-pressure flexible hose from the compressor.

CAUTION: Cap or wrap the joint of the hose with a suitable material such as vinyl tape to avoid the entry of any contaminants. 9. Remove the compressor bolts, then remove the compressor using power tools.

INSTALLATION

Installation is in the reverse order of removal. CAUTION: • Replace the O-ring of the low-pressure flexible hose and high-pressure flexible hose with new ones, then apply A/C oil to them for installation.

• After charging the A/C refrigerant, check for leaks. Refer to HA-25, "Checking of Refrigerant Leaks".

Removal and Installation for Compressor - VQ35DE Models

CAUTION: For installation, tighten the compressor bolts in the order as shown.

REMOVAL

1. Discharge the refrigerant. Refer to HA-32, "HFC-134a (R-134a) Service Procedure".

2. Remove the engine cooling fan and shroud assembly. Refer to CO-40, "Removal and Installation".

3. Disconnect the high-pressure flexible hose and low-pressure flexible hose from the compressor.

CAUTION: Cap or wrap the joint of the hose with suitable material such as vinyl tape to avoid the entry of any contaminants.

4. Remove the front RH wheel and tire.

5. Remove the RH engine side undercovers.

6. Disconnect the clamp and reposition the power steering pipe out of the way.

7. Disconnect the compressor connector.

8. Remove the drive belt. Refer to EM-121, "Removal and Installation".

9. Remove the RH compressor bolts..

10. Remove the front compressor bolts using power tool.

11. Disconnect the compressor wire harness clip from the compressor.

12. Remove the compressor.

INSTALLATION

Installation is in the reverse order of removal. CAUTION: • For installation, tighten the compressor bolts in the order as shown.

• Replace the O-rings on the low-pressure flexible hose and high-pressure flexible hose with new ones, then apply A/C oil to them for installation.

• After charging the A/C refrigerant, check for leaks. Refer to HA-25, "Checking of Refrigerant Leaks".

    Refrigeration system
    Component 1. Heater and cooling unit assembly 2. High-pressure pipe 3. High-pressure A/C service valve 4. Junction pipe 5. High-pressure flexible hose 6. Condenser and liquid tank 7. Air def ...

    Low-pressure flexible hose
    Removal and Installation for Low-Pressure Flexible Hose QR25DE Removal 1. Discharge the refrigerant. Refer to HA-32, "HFC-134a (R-134a) Service Procedure". 2. Remove the low-pressu ...

    Other materials:

    P1572 ASCD Brake switch
    Description When the brake pedal is depressed, ASCD brake switch is turned OFF and stop lamp switch is turned ON. ECM detects the state of the brake pedal by this input of two kinds (ON/OFF signal). Refer to EC-603, "System Description" for the ASCD function. DTC Logic DTC DE ...

    Starting the engine
    1. Apply the parking brake. 2. Move the shift lever to P (Park) or N (Neutral). P (Park) is recommended. The starter is designed not to operate if the shift lever is in any of the driving positions. 3. Push the ignition switch to the ON position. Depress the brake pedal and push the ign ...

    Microphone
    Diagnosis Procedure 1.CHECK POWER SUPPLY CIRCUIT (MICROPHONE SIDE) Check voltage between microphone harness connector and ground. Is proper voltage present? YES >> GO TO 4 NO >> GO TO 2 2.CHECK POWER SUPPLY CIRCUIT (CONTINUITY) 1. Turn ignition switch OFF. 2. Disconnect mic ...