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Heater & Air Conditioning Control System (Automatic Air Conditioning): Removal & Installation Nissan Quest IV

Automatic HVAC System 15 illustrations ~722 words

INSTALLATION

Install in the reverse order of removal.

Scheme 119

Scheme 119: With Rear Display
Scheme 119: With Rear Display
  1. Remove roof console. Refer to " «REMOVAL AND INSTALLATION»(ref-672656-S03988377272014112400000) ".
  2. Remove fixing screws (A), and then remove rear A/C control.

Scheme 120

Scheme 120: Without Rear Display
Scheme 120: Without Rear Display
  1. Disengage fixing pawls and metal clip using a remover tool (A).
  2. Disconnect harness connector, and then remove rear A/C control.

Install in the reverse order of removal.

Scheme 121

Scheme 121: REMOVAL
Scheme 121: REMOVAL
  1. Remove engine under cover. Refer to " «REMOVAL AND INSTALLATION»(ref-672623-S10207174702014112400000) ".
  2. Disconnect harness connector (A).
  3. Disengage fixing pawl, and then remove ambient sensor.

Install in the reverse order of removal.

Scheme 122

Scheme 122: Front Side
Scheme 122: Front Side
  1. Remove instrument lower panel LH. Refer to " «REMOVAL AND INSTALLATION»(ref-672652-S11949434712014112400000) ".
  2. Remove fixing screw (A), and then remove in-vehicle sensor.

Scheme 123

Scheme 123: Rear Side
Scheme 123: Rear Side
  1. Remove luggage side lower finisher RH. Refer to " «LUGGAGE SIDE LOWER FINISHER: REMOVAL AND INSTALLATION»(ref-672656-S36994415002014112400000) ".
  2. Remove fixing screw (A), and then disconnect harness connector.
  3. Remove intake sensor from rear A/C unit assembly.

Install in the reverse order of removal.

Scheme 124

Scheme 124: REMOVAL
Scheme 124: REMOVAL
  1. Disengage fixing pawls using a remover tool (A) as shown in the figure below. CAUTION: Apply protective tape (B) on the part to protect it from damage.
  2. Disconnect sunload sensor harness connector, and then remove sunload sensor.

Install in the reverse order of removal.

REMOVAL

  1. Remove evaporator assembly. Refer to " «EVAPORATOR: REMOVAL AND INSTALLATION»(ref-672613-S22223732382014112400000) ".
  2. Remove intake sensor from evaporator assembly.

Note the following items, and install in the reverse order of removal.

CAUTIONReplace O-rings with new ones. Then apply the compressor oil to them when installing. Mark the mounting position of intake sensor bracket prior to removal so that the reinstalled sensor can be located in the same position. Never rotate the bracket insertion part when removing and installing the intake sensor. Check for leakages when recharging refrigerant. Refer to " LEAK TEST ".

Scheme 125

Scheme 125: REMOVAL
Scheme 125: REMOVAL
  1. Remove front grille. Refer to " «REMOVAL AND INSTALLATION»(ref-672623-S14310003252014112400000) ".
  2. Remove mounting nut (A), and then remove exhaust gas/outside odor sensor.
  3. Disconnect exhaust gas/outside odor sensor connector (B).

Install in the reverse order of removal.

Refer to " REFRIGERANT PRESSURE SENSOR: REMOVAL AND INSTALLATION ".

Install in the reverse order of removal.

Scheme 126

Scheme 126: Exploded View
Scheme 126: Exploded View

Scheme 127

Scheme 127
Scheme 127

Scheme 128

Scheme 128: REMOVAL
Scheme 128: REMOVAL
  1. Remove instrument lower panel LH. Refer to " «REMOVAL AND INSTALLATION»(ref-672652-S11949434712014112400000) ".
  2. Disconnect harness connector (A), and then remove harness fixing clip (B).
  3. Remove fixing screws (C), and then remove front mode door motor from heater & cooling unit assembly.

Install in the reverse order of removal.

Driver Side

Scheme 129

Scheme 129: REMOVAL
Scheme 129: REMOVAL
  1. Set the temperature at 18°C (64°F). CAUTION: The angle may be out, when installing the air mix door motor to the air mix door, unless the above procedure is performed.
  2. Disconnect the battery cable from the negative terminal.
  3. Remove instrument lower cover LH. Refer to " «REMOVAL AND INSTALLATION»(ref-672652-S11949434712014112400000) ".
  4. Disconnect harness connector (A), and then remove fixing screws (B).
  5. Remove front air mix door motor from heater & cooling unit assembly.

Passenger Side

Scheme 130

Scheme 130
Scheme 130
  1. Set the temperature at 18°C (64°F). CAUTION: The angle may be out, when installing the air mix door motor to the air mix door, unless the above procedure is performed.
  2. Disconnect the battery cable from the negative terminal.
  3. Remove instrument lower cover RH. Refer to " «REMOVAL AND INSTALLATION»(ref-672652-S11949434712014112400000) ".
  4. Remove harness fixing clip (A), and then disconnect harness connector (B).
  5. Remove fixing screws (C), and then remove front air mix door motor from heater & cooling unit assembly.

Install in the reverse order of removal.

Scheme 131

Scheme 131: REMOVAL
Scheme 131: REMOVAL
  1. Remove instrument lower panel RH. Refer to " «REMOVAL AND INSTALLATION»(ref-672652-S11949434712014112400000) ".
  2. Disconnect harness connector (A), and then remove harness fixing clip (B).
  3. Remove fixing screws (C), and then remove intake door motor from blower unit assembly.

Install in the reverse order of removal.

Scheme 132

Scheme 132: REMOVAL
Scheme 132: REMOVAL
  1. Remove luggage side lower finisher RH. Refer to " «LUGGAGE SIDE LOWER FINISHER: REMOVAL AND INSTALLATION»(ref-672656-S36994415002014112400000) ".
  2. Disconnect harness connector (A), and then remove harness fixing clip (B).
  3. Remove fixing screws (C), and then remove rear mode door motor from rear A/C unit assembly.

Install in the reverse order of removal.

Scheme 133

Scheme 133: REMOVAL
Scheme 133: REMOVAL
  1. Set the temperature at 18°C (64°F). CAUTION: The angle may be out, when installing the air mix door motor to the air mix door, unless the above procedure is performed.
  2. Disconnect the battery cable from the negative terminal.
  3. Remove luggage side lower finisher RH. Refer to " «LUGGAGE SIDE LOWER FINISHER: REMOVAL AND INSTALLATION»(ref-672656-S36994415002014112400000) ".
  4. Disconnect harness connector (A), and then remove harness fixing clip (B).
  5. Remove fixing screws (C), and then remove rear air mix door motor from rear A/C unit assembly.

Install in the reverse order of removal.

Note the following item, and then install in the reverse order of removal.

CAUTIONIf there is dirt, use a clean cloth and clean the discharge electrode (ceramic part) of the ionizer.

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