2002 Nissan Sentra Logo
Posted on Nov 19, 2010
Answered by a Fixya Expert

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Need to remove heater A/C dash control , what is proper procedure?

1 Answer

Duane Wong

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  • Nissan Master 6,826 Answers
  • Posted on Nov 19, 2010
Duane Wong
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Joined: Jun 20, 2010
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Look at fig. 4 for the heater a/c dash control: HEATER CORE Altima REMOVAL AND INSTALLATION

  1. Position the steering wheel in the straight-ahead position.
  2. Turn the ignition switch OFF.
  3. Disconnect the negative (() battery cable; then, the positive (+) battery cable. NOTE: Wait for a least 3 minutes after disconnecting the battery cables for the charge in the air bag circuit to dissipate before working on the air bag module(s).
  4. Remove the driver's side SRS and steering wheel by removing or disconnecting the following:
    • Lower lid from the steering wheel and disconnect the driver's air bag module connector
    • Left and right side lids from the steering wheel
    • Special bolts from both side of the steering wheel using a tamper resistant Torx wrench (T50)
    • Air bag module and store it face up
    • Horn's electrical connector and remove the steering wheel nut
    • Steering wheel from the steering column using a suitable puller
  5. Remove the passenger's side SRS by removing or disconnecting the following:
    • Glove box door and the glove box
    • Front passenger's air bag module connector
    • 2 special bolts using a tamper resistant Torx wrench (T50)
    • 4 passenger's air bag-to-instrument panel nuts
    • Front passenger's air bag module and store it face up.
  6. Drain the cooling system into a clean container for reuse.
  7. Discharge and recover the air conditioning system refrigerant.
  8. Working in the engine compartment, disconnect the heater hoses from the heater core tubes.
  9. Remove the instrument panel by removing or disconnecting the following:
    • Kick plate and dash side finisher on the driver's side
    • 2 lower panel-to-instrument panel screws and the lower panel on the driver's side
    • 2 lower reinforcement panel-to-instrument panel screws and the lower reinforcement panel
    • 6 steering column cover screws, the covers, the spiral cable and combination switch
    • 2 cluster lid "A" screws and the cluster lid "A"
    • 3 combination meter screws, disconnect the electrical harness connector and remove the combination meter
    • Switch panel
    • Instrument panel lower covers
    • Snap out the transmission shifter finisher (boot)
    • 4 cluster lid "C" screws and the cluster lid "C"
    • 4 audio and deck pocket-to-instrument panel screws and the audio and deck pocket
    • 5 center console screws and the center console
    • 2 center instrument panel screws and the center panel
    • front defroster grilles
    • Front pillar garnish
    • Instrument panel 3 nuts/4 screws and the instrument panel
    • 8 instrument stay assembly nuts and the stay
    • Steering member assembly 5 nuts/1 bolt and the steering member
  10. Remove the air conditioning housing assembly by removing or disconnecting the following:
    • Refrigerant lines from the air conditioning housing assembly
    • Thermo control amp
    • Air conditioning housing assembly
  11. Remove or disconnect the following:
    • Heater unit
    • Heater core from the heater unit Fig. 1: Exploded view of the steering wheel and air bag module Need to remove heater A/C dash control , what is - 93112gd9.gif
      Fig. 2: Exploded view of the passenger's side air bag module
      Fig. 3: Exploded view of the instrument panel assembly 93112ge1.gif
      Fig. 4: Exploded view of the heater housing assemblNeed to remove heater A/C dash control , what is - 93112ge2.gifd components 93112ge2.gif Fig. 5: View of the heater core and heater housing 93112ge3.gif
    To install:
  12. Install or connect the following:
    • Heater core to the heater unit
    • Heater unit
  13. Install the air conditioning housing assembly by installing or connecting the following:
    • Air conditioning housing assembly
    • Thermo control amp
    • Refrigerant lines to the air conditioning housing assembly
  14. Install the instrument panel by installing or connecting the following:
    • Steering member assembly and the steering member 5 nuts/1 bolt
    • Instrument stay assembly and the 8 stay nuts
    • Instrument panel and the instrument panel 3 nuts/4 screws
    • Front pillar garnish
    • Front defroster grilles
    • Center instrument panel and the 2 center panel screws
    • Center console and the 5 center console screws
    • Audio and deck pocket and the 4 audio and deck pocket-to-instrument panel screws
    • Cluster lid "C" and the 4 cluster lid "C" screws
    • Snap in the transmission shifter finisher (boot)
    • Instrument panel lower covers
    • Switch panel
    • Combination meter, connect the electrical harness connector and install the 3 combination meter screws
    • Cluster lid "A" and the 2 cluster lid "A" screw
    • Combination switch, the spiral cable, the covers and the 6 steering column cover screws
    • Lower reinforcement panel and the 2 lower reinforcement panel-to-instrument panel screws
    • Lower panel and the 2 lower panel-to-instrument panel screws, on the driver's side
    • Kick plate and dash side finisher, on the driver's side
  15. Working in the engine compartment, connect the heater hoses to the heater core tubes.
  16. Install the passenger's side SRS by installing or connecting the following:
    • Front passenger's air bag module
    • 4 passenger's air bag-to-instrument panel nuts
    • 2 new special bolts and torque using a tamper resistant Torx wrench (T50) to 11-18 ft. lbs. (15-25 Nm)
    • Front passenger's air bag module connector
    • Glove box door and the glove box
  17. Install the driver's side SRS and steering wheel by installing or connecting the following:
    • Steering wheel to the steering column
    • Steering wheel nut and torque the nut to 22-29 ft. lbs.
    • Horn's electrical connector
    • Air bag module
    • New special bolts to both sides of the steering wheel and torque the bolts using a tamper resistant Torx wrench (T50) to 11-18 ft. lbs. (15-25 Nm).
    • Both the left and right side lids to the steering wheel
    • Lower lid to the steering wheel and connect the driver's air bag module connector
  18. Refill the cooling system.
  19. Connect the positive (+) battery cable; then, the negative (() battery cable.
  20. Evacuate, charge and leak test the air conditioning system refrigerant.
  21. Operate the engine to normal operating temperatures; then, check the climate control operation and check for leaks.

  • Duane Wong
    Duane Wong Nov 19, 2010



    200SX And Sentra-



    Removal And Installation



        Position the steering wheel in the straight-ahead position.

          Turn the ignition switch OFF.

            Disconnect the negative (() battery cable; then, the positive (+) battery cable.


            NOTE

            Wait for a least 3 minutes after disconnecting the battery cables for the charge in the air bag circuit to dissipate before working on the air bag module(s).



              Remove the driver-s side SRS and steering wheel by performing the following procedure:



              Remove the lower lid from the steering wheel and disconnect the driver-s air bag module connector.

              Remove both the left and right side lids from the steering wheel.

              Using a tamper resistant Torx wrench (T50), remove the special bolts from both side of the steering wheel.

              Carefully, remove the air bag module and store it face up.

              Disconnect the horn-s electrical connector and remove the steering wheel nut.

              Using a steering wheel puller, press the steering wheel from the steering column.



                Remove the passenger-s side SRS by performing the following procedure:



                Remove the glove box door and the glove box.

                Disconnect the front passenger-s air bag module connector.

                Using a tamper resistant Torx wrench (T50), remove the 2 special bolts.

                Remove the 4 passenger-s air bag-to-instrument panel nuts.

                Carefully, remove the front passenger-s air bag module and store it face up.



                  Drain the cooling system into a clean container for reuse.

                    Discharge and recover the air conditioning system refrigerant.

                      Working in the engine compartment, disconnect the heater hoses from the heater core tubes.

                        Remove the instrument panel by performing the following procedures:



                        On the driver-s side, remove the 2 lower panel-to-instrument panel screws and the lower panel.

                        Remove the 2 lower reinforcement panel-to-instrument panel screws and the lower reinforcement panel.

                        Remove the 6 steering column cover screws, the cover and combination switch.

                        Remove the 2 cluster lid -A- screws and the cluster lid -A-.

                        Remove the 3 combination meter screws, disconnect the electrical harness connector and remove the combination meter.

                        Remove the ashtray.

                        Remove the cluster lid -C- mask, screw and the cluster lid -C-.

                        Remove the 8 audio and air conditioning control assembly-to-instrument panel screws, the electrical connectors and the audio and air conditioning control assembly.

                        Remove the transmission shifter finisher.

                        Remove the rear console mask, the 4 screws and the rear console.

                        Remove the 4 front console screws and the front console.

                        Remove the front pillar garnish.

                        Remove the lower dash side garnish.

                        Remove the instrument panel mask.

                        Remove the instrument panel-to-chassis nuts/bolts and the instrument panel.



                          Remove the air conditioning housing assembly by performing the following procedure:



                          Disconnect the refrigerant lines from the air conditioning housing assembly.

                          Disconnect the thermo control amp.

                          Remove the air conditioning housing assembly.



                            Remove the heater unit.

                              Remove the heater core from the heater unit.



                              Click image to see an enlarged view

                              http://repairguide.autozone.com/znetrgs/... view of the steering wheel and air bag module-1998 200SX and Sentra" rel="width:950,height:660" index="0" $included="null">

                              Fig. Exploded view of the steering wheel and air bag module-1998 200SX and Sentra





                              Click image to see an enlarged view

                              http://repairguide.autozone.com/znetrgs/... view of the passenger-s side air bag module-1998 200SX and Sentra" rel="width:950,height:660" index="1" $included="null">

                              Fig. Exploded view of the passenger-s side air bag module-1998 200SX and Sentra



  • Duane Wong
    Duane Wong Nov 19, 2010









        http://repairguide.autozone.com/znetrgs/... view of the instrument panel assembly-1998 200SX and Sentra" rel="width:950,height:660" index="2" $included="null">

        Fig. Exploded view of the instrument panel assembly-1998 200SX and Sentra





        Click image to see an enlarged view

        http://repairguide.autozone.com/znetrgs/... view of the heater housing assembly and related components-1998 200SX and Sentra" rel="width:950,height:660" index="3" $included="null">

        Fig. Exploded view of the heater housing assembly and related components-1998 200SX and Sentra





        Click image to see an enlarged view

        http://repairguide.autozone.com/znetrgs/... of the heater core and heater housing-1998 200SX and Sentra" rel="width:950,height:660" index="4" $included="null">

        Fig. View of the heater core and heater housing-1998 200SX and Sentra




    To install:



        Install the heater core to the heater unit.

          Install the heater unit.

            Install the air conditioning housing assembly by performing the following procedure:



            Install the air conditioning housing assembly.

            Connect the thermo control amp.

            Connect the refrigerant lines to the air conditioning housing assembly.



              Install the instrument panel by performing the following procedures:



              Install the instrument panel and the instrument panel-to-chassis nuts/bolts.

              Install the instrument panel mask.

              Install the lower dash side garnish.

              Install the front pillar garnish.

              Install the front console and the 4 front console screws.

              Install the rear console, the 4 screws and the rear console mask.

              Install the transmission shifter finisher.

              Install the air conditioning control assembly, the electrical connectors and the audio and the 8 audio and air conditioning control assembly-to-instrument panel screws.

              Install the cluster lid -C-, the screw and the cluster lid -C- mask.

              Install the ashtray.

              Install the combination meter, connect the electrical harness connector and install the 3 combination meter screws.

              Install the cluster lid -A- and the 2 cluster lid -A- screws.

              Install the combination switch, the cover and the 6 steering column cover screws.

              Install the lower reinforcement panel and the 2 lower reinforcement panel-to-instrument panel screws.

              On the driver-s side, install the lower panel and the 2 lower panel-to-instrument panel screws.



                Working in the engine compartment, connect the heater hoses to the heater core tubes.

                  Install the passenger-s side SRS by performing the following procedure:



                  Carefully, install the front passenger-s air bag module.

                  Install the 4 passenger-s air bag-to-instrument panel nuts.

                  Using a tamper resistant Torx wrench (T50), install the 2 new special bolts and torque to 11-18 ft. lbs. (15-25 Nm).

                  Connect the front passenger-s air bag module connector.

                  Install the glove box door and the glove box.



                    Install the driver-s side SRS and steering wheel by performing the following procedure:



                    Install the steering wheel to the steering column.

                    Install the steering wheel nut and torque the nut to 22-29 ft. lbs. Connect the horn-s electrical connector.

                    Carefully, install the air bag module.

                    Using a tamper resistant Torx wrench (T50), install the new special bolts to both side of the steering wheel and torque the bolts to 11-18 ft. lbs. (15-25 Nm).

                    Install both the left and right side lids to the steering wheel.

                    Install the lower lid to the steering wheel and connect the driver-s air bag module connector.



                      Refill the cooling system.

                        Connect the positive (+) battery cable; then, the negative (() battery cable.

                          Evacuate, charge and leak test the air conditioning system refrigerant.

                            Operate the engine to normal operating temperatures; then, check the climate control operation and check for leaks.

×

1 Related Answer

Anonymous

  • 466 Answers
  • Posted on Aug 02, 2009

SOURCE: bad heater core 2001 chevy c1500

Disconnect the battery negative. Remove the radio, air conditioning control panel, measuring instruments, remove 4 bolts that attach the steering column at the bottom of the dash has a tube that is clamped by two screws to remove this tube is divided into that part of the steering column remove that section of the tube to the steering column complete fall on top of the dash carries cristalhay nearly three screws to remove and so the dash is free and can be moved. down. we have to download or pick up the 134A freon air conditioning system to remove the air filter off the liquid line to disconnect the water hoses that enter the calentador.Ahora remove the screws holding the case where the evaporator and the heater is We can get out and disassemble the box to get the heater

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The heater-A/C housing assembly must be removed from the vehicle and the two halves of the housing separated for service access of the heater core, evaporator coil, blend-air door, and each of the various mode control doors.

WARNING: On vehicles equipped with airbags, refer to Airbag Systems Safety Information and Procedures. Before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Failure to take the proper precautions could result in accidental airbag deployment and possible personal injury. See: Restraint Systems\Air Bag Systems\Service Precautions

REMOVAL
  1. Disconnect and isolate the battery negative cable.
  2. Remove the instrument panel from the vehicle. Refer to: Body and Frame, Interior Trim, Dashboard / Instrument Panel, Service and Repair, Instrument Panel Service Procedures, Instrument Panel Assembly Replacement, See: Body and Frame\Interior Moulding / Trim\Dashboard / Instrument Panel\Service and Repair\Instrument Panel Assembly
  3. If the vehicle is not equipped with air conditioning, go to Step 6. If the vehicle is equipped with air conditioning, recover the refrigerant from the refrigerant system. Refer to: Heating and Air Conditioning, Service and Repair, Procedures, Refrigerant System Recovery, See: Service and Repair\Refrigerant System Recovery
  4. Disconnect the liquid line refrigerant line fitting from the evaporator inlet tube.
    • Install plugs in, or tape over all of the opened refrigerant line fittings.
  1. Disconnect the accumulator inlet tube refrigerant line fitting from the evaporator outlet tube. See Refrigerant Line Coupler for the procedures.
    • Install plugs in, or tape over all of the opened refrigerant line fittings.
  1. Drain the engine cooling system.
  2. Disconnect the heater hoses from the heater core tubes. Install plugs in, or tape over the opened heater core tubes.
  3. Unplug the heater-A/C system vacuum supply line connector from the tee fitting near the heater core tubes.
  4. Unplug the heater-A/C unit wire harness connector, which is fastened to the heater-A/C housing next to the blower motor relay.
    1. Remove the five nuts from the heater-A/C housing mounting studs on the engine compartment side of the dash panel. Remove or reposition the evaporation canister for additional access, if required.
    2. Pull the heater-A/C housing rearward far enough for the mounting studs and the evaporator condensate drain tube to clear the dash panel holes.
    3. Remove the heater-A/C housing from the vehicle.
    INSTALLATION
    1. Position the heater-A/C housing to the dash panel. Be certain that the evaporator condensate drain tube and the housing mounting studs are inserted into their correct mounting holes.
    2. Install and tighten the five nuts onto the heater-A/C housing mounting studs on the engine compartment side of the dash panel. Tighten the nuts to 6.2 Nm (55 in. lbs.) .
    3. If the evaporation canister was repositioned during the removal procedure, reinstall it to its proper position.
    4. Connect the Heater-A/C system vacuum supply line connector to the tee fitting near the heater core tubes.
    5. Unplug or remove the tape from the heater core tubes. Connect the heater hoses to the heater core tubes and fill the engine cooling system.
    6. If the vehicle is not equipped with air conditioning, go to Step 10. If the vehicle is equipped with air conditioning, unplug or remove the tape from the accumulator inlet tube and the evaporator outlet tube fittings. Connect the accumulator inlet tube coupler to the evaporator outlet tube.
    7. Unplug or remove the tape from the liquid line and the evaporator inlet tube fittings. Connect the liquid line coupler to the evaporator inlet tube.
    8. Evacuate the refrigerant system. Refer to: Heating and Air Conditioning, Service and Repair, Procedures, Refrigerant System Evacuate, See: Service and Repair\Refrigerant System Evacuate
    9. Charge the refrigerant system. Refer to: Heating and Air Conditioning, Service and Repair, Procedures, Refrigerant System Charge, See: Service and Repair\Refrigerant System Charge
    10. Install the instrument panel in the vehicle. Refer to: Body and Frame, Interior Trim, Dashboard / Instrument Panel, Service and Repair, Instrument Panel Service Procedures, Instrument Panel Assembly Replacement, See: Body and Frame\Interior Moulding / Trim\Dashboard / Instrument Panel\Service and Repair\Instrument Panel Assembly
    11. Connect the battery negative cable.
    12. Start the engine and check for proper operation of the heating and air conditioning systems.
REMOVAL AND INSTALLATION

WARNING: On vehicles equipped with airbags, refer to Airbag Systems Safety Information and Procedures. Before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Failure to take the proper precautions could result in accidental airbag deployment and possible personal injury. See: Restraint Systems\Air Bag Systems\Service Precautions

  1. Remove and disassemble the heater-A/C housing. Refer to: Heating and Air Conditioning, Housing Assembly HVAC, Service and Repair, See: Heating and Air Conditioning\Housing Assembly HVAC\Service and Repair
  2. Lift the heater core out of the lower half of the heater-A/C housing.
  3. Reverse the removal procedures to install. Be certain that the heater core foam insulator is reinstalled
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