REMOVAL
| WARNING | Disable the airbag system before attempting any steering wheel, steering column or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury. |
Note. The dual zone system has two blend door actuators, one for the driver side blend-air door and one for the passenger side blend-air door.
Note. LHD model shown in illustrations. RHD model similar.
Scheme 17
- Disconnect and isolate the negative battery cable.
- Remove the left side instrument panel silencer.
- On RHD models, remove the glove box and glove box closeout. Refer to «GLOVE BOX, INSTRUMENT PANEL, REMOVAL»(ref-465921-S37826842652012042300000) .
- On LHD models, remove the knee blocker. Refer to «COVER, STEERING COLUMN OPENING, REMOVAL»(ref-465921-S13011093802012042300000) .
- Remove the left side floor distribution duct from the HVAC air distribution housing (4). Refer to «DUCT, FLOOR DISTRIBUTION, REMOVAL»(ref-465931-S18624701292012042300000) .
- Remove the two screws (1) that secure the blend door actuator (3) to the left side of the air distribution housing.
- Remove the blend door actuator from the air distribution housing.
- Disconnect the wire harness connector (2) from the blend door actuator and remove the actuator from the vehicle.
Scheme 18
- Disconnect and isolate the negative battery cable.
- Remove the right side instrument panel silencer.
- On LHD models, remove the glove box and glove box closeout. Refer to «GLOVE BOX, INSTRUMENT PANEL, REMOVAL»(ref-465921-S37826842652012042300000) .
- Remove the right side floor distribution duct from the HVAC air distribution housing (4). Refer to «DUCT, FLOOR DISTRIBUTION, REMOVAL»(ref-465931-S18624701292012042300000) .
- Remove the two screws (1) that secure the blend door actuator (3) to the right side of the air distribution housing.
- Remove the blend door actuator from the air distribution housing.
- Disconnect the wire harness connector (2) from the blend door actuator and remove the actuator from the vehicle.
INSTALLATION
Note. LHD model shown in illustrations. RHD model similar.
Scheme 19
- Position the blend door actuator (1) into the vehicle.
- Install the blend door actuator onto the left side of the HVAC air distribution housing (2). If necessary, rotate the actuator slightly to align the splines on the actuator output shaft (4) with those on the blend door drive gear (3).
- Install the two screws (1) that secure the blend door actuator (3) to the left side of the HVAC air distribution housing (4). Tighten the screws to 2 N.m (17 in. lbs.).
- Connect the wire harness connector (2) to the blend door actuator.
- Install the left side floor distribution duct. Refer to «DUCT, FLOOR DISTRIBUTION, INSTALLATION»(ref-465931-S17304218992012042300000) .
- On LHD models, install the knee blocker. Refer to «COVER, STEERING COLUMN OPENING, INSTALLATION»(ref-465921-S38359398272012042300000) .
- On RHD models, install the glove box closeout and the glove box. Refer to «GLOVE BOX, INSTRUMENT PANEL, INSTALLATION»(ref-465921-S41254480452012042300000) .
- Install the left side instrument panel silencer.
- Reconnect the negative battery cable.
- Initiate the Actuator Calibration function using a scan tool. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
Scheme 20
- Position the blend door actuator (1) into the vehicle.
- Install the blend door actuator onto the right side of the HVAC air distribution housing (4). If necessary, rotate the actuator slightly to align the splines on the actuator output shaft (2) with those on the blend door drive gear (3).
- Install the two screws (1) that secure the blend door actuator (3) to the right side of the HVAC air distribution housing (4). Tighten the screws to 2 N.m (17 in. lbs.).
- Connect the wire harness connector (2) to the blend door actuator.
- Install the right side floor distribution duct. Refer to «DUCT, FLOOR DISTRIBUTION, INSTALLATION»(ref-465931-S17304218992012042300000) .
- On LHD models, install the glove box closeout and the glove box. Refer to «GLOVE BOX, INSTRUMENT PANEL, INSTALLATION»(ref-465921-S41254480452012042300000) .
- Install the right side instrument panel silencer.
- Reconnect the negative battery cable.
- Initiate the Actuator Calibration function using a scan tool. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
| WARNING | Disable the airbag system before attempting any steering wheel, steering column or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury. |
Note. LHD model shown in illustration. RHD model similar.
Scheme 21
- Disconnect and isolate the negative battery cable.
- Remove the right side instrument panel silencer.
- Remove the right side floor distribution duct from the HVAC air distribution housing. Refer to «DUCT, FLOOR DISTRIBUTION, REMOVAL»(ref-465931-S18624701292012042300000) .
- Remove the three screws (3) that secure the mode door actuator (2) to the mode door bracket (4) located on the right side of the air distribution housing.
- Remove the mode door actuator from the air distribution housing.
- Disconnect the wire harness connector (1) from the mode door actuator and remove the actuator from the vehicle.
Note. LHD model shown in illustrations. RHD model similar.
Scheme 22
- Position the mode door actuator (3) into the vehicle.
- Install the mode door actuator onto the mode door linkage bracket (1) located on the right side of the HVAC air distribution housing. If necessary, rotate the actuator slightly to align the flat area of the splines on the actuator output shaft (4) with the flat area in the mode door drive gear (2).
- Install the three screws (3) that secure the mode door actuator (2) to the mode door linkage bracket (4). Tighten the screws to 2 N.m (17 in. lbs.).
- Connect the wire harness connector (1) to the mode door actuator.
- Install the right side floor distribution duct. Refer to «DUCT, FLOOR DISTRIBUTION, INSTALLATION»(ref-465931-S17304218992012042300000) .
- Install the right side instrument panel silencer.
- Reconnect the negative battery cable.
- Initiate the Actuator Calibration function using a scan tool. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
| WARNING | Disable the airbag system before attempting any steering wheel, steering column or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury. |
Note. LHD model shown in illustration. RHD model similar.
Scheme 23
- Disconnect and isolate the negative battery cable.
- Remove the passenger side instrument panel silencer.
- Remove the passenger side floor distribution duct from the HVAC air distribution housing. Refer to «DUCT, FLOOR DISTRIBUTION, REMOVAL»(ref-465931-S18624701292012042300000) .
- Remove the two screws (1) that secure the recirculation door actuator (3) to the HVAC air inlet housing (4).
- Remove the recirculation door actuator from the air inlet housing.
- Disconnect the wire harness connector (2) from the recirculation door actuator and remove the actuator from the vehicle.
Note. LHD model shown in illustrations. RHD model similar.
Scheme 24
- Position the recirculation door actuator (1) into the vehicle.
- Install the recirculation door actuator onto the HVAC air inlet housing (3). If necessary, rotate the actuator slightly to align the splines of the actuator output shaft (4) with those on the recirculation door pivot shaft (2).
- Install the two screws (1) that secure the recirculation door actuator (3) to the HVAC air inlet housing (4). Tighten the screws to 2 N.m (17 in. lbs.).
- Connect the wire harness connector (2) to the recirculation door actuator.
- Install the passenger side floor distribution duct. Refer to «DUCT, FLOOR DISTRIBUTION, INSTALLATION»(ref-465931-S17304218992012042300000) .
- Install the passenger side instrument panel silencer.
- Reconnect the negative battery cable.
- Initiate the Actuator Calibration function using a scan tool. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
Scheme 25
The A/C-heater control (1) for the Automatic Temperature Control (ATC) dual zone heating-A/C system allows both the driver and the front seat passenger the ability to individually regulate air temperature for their side of the vehicle. All controls are identified by International Standardization Organization (ISO) graphic symbols.
The ATC A/C-heater control and integral computer is located in the center of the instrument panel and contains
- a push button A/C on/off control (2). An ISO Snowflake symbol appears in the Vacuum-Flourescent (VF) digital display (3) when the A/C system is in operation, whether under manual or Auto mode.
- a push button front window defogger control (4). An indicator lamp illuminates in the control when selected manually and an ISO symbol appears in the VF digital display when selected by Auto mode.
- four push button temperature controls (5 and 15) to select the front comfort temperatures from 15° to 31° C (60° to 88° F). Comfort temperatures for each zone are shown in the VF digital display. If the set temperatures are 15° C (60° F) and is adjusted lower, the A/C-heater control will attempt to achieve the lowest temperature possible, but the display will show LO. If the set temperatures are 31° C (88° F) and is adjusted up, the A/C-heater control will attempt to achieve the highest temperature possible, but the display will show HIGH. Temperatures can be displayed in either Metric or Fahrenheit, which is selected from the overhead console.
- a push button rear window defogger on/off control (6). An indicator lamp illuminates in the control when selected. The indicator lamp illuminates in the control even with the heating-A/C system turned off. Refer to «OPERATION»(ref-465963-S21688835262012042300000) .
- a push button automatic mode control (7) to set the heating-A/C system to Auto mode. AUTO appears in the VF digital display when the system is in Auto mode.
- two push button front heated seat controls (8 and 11). Each control has two indicator lamps that illuminate, depending on seat temperature selected. Refer to «OPERATION»(ref-465967-S18638320312012042300000) .
- a rotary control knob for fan speed selection and turning the heating-A/C system off (9).
- a cab temperature sensor (10) is located in the center of the A/C-heater control. The sensor detects thermal radiation emitted by the front seat occupants and their surroundings.
- a push button mode control (12) to override the Auto mode. An ISO mode symbol appears in the VF digital display to indicate the current mode setting when selected manually or by Auto mode. Auto mode provides variable air recirculation through a broad range of high temperature and humidity conditions.
- a push button air recirculation control (13). The Recirculation button contains an LED that illuminates when the recirculation function is manually activated. The ATC A/C-heater control computer logic provides variable air recirculation through a broad range of temperature and humidity conditions.
- a push button synchronize control (14) that automatically adjusts the temperature of the front passenger comfort zone to the drivers comfort zone temperature. An LED illuminates in the SYNC button when the SYNC function is manually activated. SYNC appears in the VF digital display when the system is synchronized, whether under manual or Auto mode.
- illumination lamps for backlighting of the ATC A/C-heater control.
- computer logic that remembers the settings of the controls when the ignition is turned off, and retains those settings after a restart. If the system is off when the ignition is turned off, it will be off when the engine is restarted, etc.
The A/C-heater control for the ATC dual zone heating-A/C system is diagnosed using a scan tool. Prior to replacing an A/C-heater control, check for any Diagnostic Trouble Codes (DTCs) related to the heating-A/C system and initiate the Actuator Calibration function to verify that the concern is not a heating-A/C system calibration issue. Refer to STANDARD PROCEDURE .
The A/C-heater control cannot be repaired or adjusted and must be replaced if inoperative or damaged.
The ATC A/C-heater control utilizes integrated circuitry and information carried on the Controller Area Network (CAN) bus to monitor many sensors and switch inputs throughout the vehicle. In response to these inputs, the internal circuitry and programming of the ATC A/C-heater control allow it to control electronic functions and features of the ATC heating-A/C system.
Some of the inputs received by the A/C-heater control of the ATC heating-A/C system on the CAN bus are as follows
- A/C Clutch Engage
- Ambient Air Temperature
- A/C-heater control backlight dimming
- Engine Coolant Temperature
- Engine Speed
- Refrigerant Pressure
- Electrical System Voltage
- Vehicle Identification Number
- Vehicle Odometer
- Vehicle Speed
Some of the messages broadcasted by the A/C-heater control of the ATC heating-A/C system on the CAN bus are as follows
- A/C Request
- EBL Status
- Heated/Ventilated Seat Select
| WARNING | Disable the airbag system before attempting any steering wheel, steering column or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury. |
Note. Take the proper precautions to protect the face of the A/C-heater control, center bezel and the instrument panel switch pod from cosmetic damage while performing this procedure.
Scheme 26
- Disconnect and isolate the negative battery cable.
- Remove the instrument panel center bezel (3) and place it on a workbench. Refer to «BEZEL, INSTRUMENT PANEL, CENTER, REMOVAL»(ref-465921-S12753781422012042300000) .
- Remove the four screws (1 and 4) that secure the A/C-heater control (2) to the center bezel and remove the control.
Note. Take the proper precautions to protect the face of the A/C-heater control, center bezel and the instrument panel switch pod from cosmetic damage while performing this procedure.
- Position the A/C-heater control (2) into the instrument panel center bezel (3).
- Install the four screws (1 and 4) that secure the A/C-heater control to the center bezel. Tighten the screws to 2 N.m (17 in. lbs.).
- Install the instrument panel center bezel. Refer to «BEZEL, INSTRUMENT PANEL, CENTER, INSTALLATION»(ref-465921-S16270483732012042300000) .
- Reconnect the negative battery cable.
- Initiate the Actuator Calibration function using a scan tool. Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) .
- If equipped with rear heating-A/C system, calibrate the rear A/C-heater control as follows: Verify that the Actuator Calibration of the front A/C-heater control has passed. Correct any errors before proceeding if the Actuator Calibration has not passed. Rotate the rear temperature control knob counter clockwise to the full cold position. Allow the control to remain in the full cold position for 5 seconds. Rotate the rear temperature control knob clockwise to the full hot position. Allow the control to remain in the full hot position for 5 seconds. Calibration is now complete. Verify proper front and rear heating-A/C system operation.
| WARNING | Disable the airbag system before attempting any steering wheel, steering column or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury. |
| WARNING | The heat sink for the blower motor power module may get very hot during normal operation. If the blower motor was turned on prior to servicing the blower motor power module, wait five minutes to allow the heat sink to cool before performing diagnosis or service. Failure to take this precaution can result in possible personal injury. |
Note. Automatic Temperature Control (ATC) shown in illustration. Manual Temperature Control (MTC) similar.
Scheme 27
Note. Illustration shown with instrument panel removed from view for clarity.
Scheme 28
Scheme 29
- Disconnect and isolate the negative battery cable.
- Remove the passenger side instrument panel silencer.
- Disconnect the passenger side floor ducts (1) from the HVAC housing (2).
- Disconnect the two wiring harness connectors (1) from the blower motor power module (2).
- Remove the two screws (13) that secure the blower motor power module (2) to the HVAC housing (3).
- Remove the blower motor power module from the HVAC housing.
Note. Automatic Temperature Control (ATC) shown in illustration. Manual Temperature Control (MTC) similar.
- Position the blower motor power module (2) onto the HVAC housing (3).
- Install the two screws (1) that secure the blower motor power module to the HVAC housing. Tighten the screws to 2 N.m (17 in. lbs.).
- Connect the two wire harness connectors (1) to the blower motor power module (2). NOTE: Illustration shown with instrument panel removed from view for clarity.
- Connect the passenger side floor ducts (1) to the HVAC housing (2).
- Install the passenger side instrument panel silencer.
- Reconnect the negative battery cable.
Scheme 30
The ambient air temperature sensor is a variable resistor that monitors the air temperature outside of the vehicle. The Automatic Temperature Control (ATC) system uses the ambient air temperature sensor data to help maintain optimum cabin temperature levels. The ambient air temperature sensor is mounted to the condenser/radiator closeout, behind the grille.
- Position the ambient air temperature sensor (2) onto the condenser/radiator closeout (3) and install the push-pin fastener (1).
- Connect the wire harness connector (4) to the ambient air temperature sensor.
- Install the grille. Refer to «GRILLE, INSTALLATION»(ref-465921-S22387054082012042300000) .
- Reconnect the negative battery cable.
| WARNING | Disable the airbag system before attempting any steering wheel, steering column or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury. |
Note. LHD model shown in illustration. RHD model similar.
Scheme 31
- Disconnect and isolate the negative battery cable.
- Remove the right side instrument panel silencer.
- Disconnect the wire harness connector (1) from the evaporator temperature sensor (2) located on the right side of the HVAC housing (3).
- Remove the evaporator temperature sensor from the HVAC housing.
Note. LHD model shown in illustration. RHD model similar.
- Install the evaporator temperature sensor (1) into the right side of the HVAC housing (3). Make sure that the sensor retaining clips are fully engaged in the housing.
- Connect the wire harness connector (2) to the evaporator temperature sensor.
- Install the right side instrument panel silencer
- Reconnect the negative battery cable.
| WARNING | Disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable. Wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in possible serious or fatal injury. |
Note. Take the proper precautions to protect the face of the defroster grille from cosmetic damage while performing this procedure.
Scheme 32
Scheme 33
- Disconnect and isolate the negative battery cable.
- Using Trim Stick (special tool #C-4755, Trim Stick) or equivalent, remove the defroster grille (3) from the instrument panel and disconnect the wire harness connector (2) from the sun sensor (1).
- Place the defroster grill on a workbench (2).
- Disengage the two retaining tabs (1) that secure the sun sensor (3) to the back side of the defroster grille and remove the sensor.
Note. Take the proper precautions to protect the face of the defroster grille from cosmetic damage while performing this procedure.
- Align the tab on the sun sensor (3) with the slot in the opening in the defroster grille (2) and install the sensor onto the grille. Make sure that the two sensor retaining tabs (1) are fully engaged to the defroster grille.
- Position the defroster grille (3) to the top of the instrument panel and connect the wire harness connector (2) to the sun sensor (1).
- Carefully install the defroster grille onto the instrument panel. Make sure the retaining tabs on the defroster grille are fully engaged to the instrument panel.
- Reconnect the negative battery cable.
Scheme 34
The A/C pressure transducer (1) is a switch that is installed on a fitting located on the A/C discharge line. An internally threaded fitting on the A/C pressure transducer connect it to the externally threaded Schrader-type fitting on the A/C discharge line. A rubber O-ring seals the connection between the A/C pressure transducer and the discharge line fitting. The A/C pressure transducer is connected to the vehicle electrical system by a molded plastic connector with three terminals.
Note. It is not necessary to discharge the refrigerant system to replace the A/C pressure transducer.
Scheme 35
Note. Typical A/C pressure transducer and refrigerant line shown in illustration.
- Disconnect and isolate the negative battery cable.
- Disconnect the wire harness connector (1) from the A/C pressure transducer (2) located on the A/C discharge line (3).
- Remove the A/C pressure transducer from the fitting on the A/C discharge line and remove and discard the O-ring seal.
Note. Use only the specified O-ring as it is made of special material for R-134a. Use only refrigerant oil of the type required for the A/C compressor.
Note. Typical A/C pressure transducer and refrigerant line shown in illustration.
- Lubricate a new rubber O-ring seal (4) with clean refrigerant oil and install it onto the discharge line fitting (3).
- Install the A/C pressure transducer (2) onto the A/C discharge line. Tighten the A/C pressure transducer to 5.1 N.m (45 in. lbs.).
- Connect the wire harness connector (1) to the A/C pressure transducer.
- Reconnect the negative battery cable.
Scheme 36
The rear blend door actuator (1) is a reversible, 12 volt direct current (DC), servo motor. The rear blend door actuator is located on the inboard side of the rear heater-A/C housing. The rear blend door actuator is contained within a black molded plastic housing which has an integral wire connector receptacle (2), three integral mounting tabs (4) and an output shaft with splines (3) that connect the actuator to the rear blend-air door. The rear blend door actuator is interchangeable with the actuator for the mode-air door.
The rear blend door actuator does require mechanical indexing to the rear blend-air door, as it is electronically calibrated by the A/C-heater control.
Note. Take the proper precautions to protect the face of the rear A/C-heater control and bezel from cosmetic damage while performing this procedure.
Note. Automatic Temperature Control (ATC) shown in illustration. Manual Temperature Control (MTC) similar.
Scheme 37
- Disconnect and isolate the negative battery cable.
- Using Trim Stick (special tool #C-4755, Trim Stick) or equivalent, gently release the four retaining clips (2) that secure the rear control bezel (1) to the headliner.
- Disconnect the wire harness connector from the rear A/C-heater control (4) and place the rear control and bezel on a workbench.
- Remove the two screws (3 and 5) that secure the rear A/C-heater control to the bezel and remove the rear control.
Note. Take the proper precautions to protect the face of the rear A/C-heater control and bezel from cosmetic damage while performing this procedure.
Note. Automatic Temperature Control (ATC) shown. Manual Temperature Control (MTC) similar.
- Install the rear A/C-heater control (4) into the bezel (1).
- Install the two screws (3 and 5) that secure the rear A/C-heater control to the bezel. Tighten the screws securely.
- Position the rear A/C-heater control and bezel to the headliner and connect the wire harness connector to the back of the rear control.
- Using hand pressure, install the rear control bezel onto the headliner. Make sure the four retaining clips (2) are fully seated.
- Reconnect the negative battery cable.
- Calibrate the front and rear A/C systems as follows: Initiate the Actuator Calibration function using a scan tool. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . Verify that the Actuator Calibration of the front A/C-heater control has passed. Correct any errors before proceeding if the Actuator Calibration has not passed. Rotate the rear temperature control knob counter clockwise to the full cold position. Allow the control to remain in the full cold position for 5 seconds. Rotate the rear temperature control knob clockwise to the full hot position. Allow the control to remain in the full hot position for 5 seconds. Calibration is now complete. Verify proper front and rear heating-A/C system operation.
Scheme 38
A blower motor power module is used on this model when equipped with either the rear Automatic Temperature Control (ATC) heating-A/C system, or the rear Manual Temperature Control (MTC) heating-A/C system.
The blower motor power module consists of a molded plastic case (1) with electronic circuitry, two integral mounting tabs (2), an electrical connector cavity (3) and a retaining bracket (4). Behind the case is a finned heat sink (5). The rear blower motor power module is mounted in rear heater-A/C housing, located on the passenger side of the vehicle, behind the rear quarter trim panel.
- Position the rear blower motor power module (3) into the rear heater-A/C housing (1). Make sure the module retaining tabs are fully engaged to the housing.
- Install the screw (2) that secures the rear blower motor power module to the rear heater-A/C housing. Tighten the screw to 2 N.m (17 in. lbs.).
- Connect the wire harness connector (4) to the rear blower motor power module.
- Install the right quarter trim panel. Refer to «PANEL, QUARTER TRIM, INSTALLATION»(ref-465921-S22832939962012042300000) .
- Reconnect the negative battery cable.
Scheme 39
Note. LHD model shown. RHD model similar.
The defroster outlets receive airflow from the HVAC housing through a molded plastic defroster duct (2) that is attached to the underside of the instrument panel cover (1).
The defroster duct is integral to the instrument panel cover and is not serviced separately.
| WARNING | Disable the airbag system before attempting any steering wheel, steering column or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable and wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury. |
Note. LHD model shown in illustrations. RHD model similar.
Note. LHD model shown in illustrations. RHD model similar.
| WARNING | Disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable. Wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to take the proper precautions may result in accidental airbag deployment and possible serious or fatal injury. |
Note. LHD model shown in illustrations. RHD model similar.
Scheme 40
Note. Illustration shown with instrument panel removed from view for clarity.
- Remove the left side instrument panel silencer.
- Remove the push pin (3) that secures the left side floor ducts (1) to the instrument panel.
- Disconnect the left side floor ducts from the HVAC housing (2).
Note. LHD model shown in illustrations. RHD model similar.
| WARNING | Disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable. Wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to take the proper precautions may result in accidental airbag deployment and possible serious or fatal injury. |
Note. Take the proper precautions to protect the face of the instrument panel cover from cosmetic damage while performing this procedure.
Note. It is not necessary to remove the air outlets to service the instrument panel duct. Illustrations shown with air outlets removed from view for clarity.
Note. LHD model shown in illustrations. RHD model similar.
Scheme 41
Scheme 42
- Remove the instrument panel cover (4) and place it on a workbench. Refer to «COVER, INSTRUMENT PANEL, REMOVAL»(ref-465921-S20829679442012042300000) .
- Remove the instrument panel demister ducts. Refer to «DUCT, INSTRUMENT PANEL DEMISTER, REMOVAL»(ref-465931-S36986061742012042300000) .
- Remove the screws (1, 2 and 5) that secure the left side of the instrument panel duct (3) to the instrument panel cover.
- Remove the screws (1, 2 and 5) that secure the right side of the instrument panel duct (3) to the instrument panel cover (4). NOTE: If the foam seal on an air outlet is deformed or damaged, the seal must be replaced.
- Remove the instrument panel duct from the instrument panel cover.
Note. Take the proper precautions to protect the face of the instrument panel cover from cosmetic damage while performing this procedure.
Note. Illustrations shown with air outlets removed from view for clarity.
Note. LHD model shown in illustrations. RHD model similar.
- Position the instrument panel duct (2) to the instrument panel cover (4). NOTE: If the foam seal on an air outlet is deformed or damaged, the seal must be replaced.
- Connect the instrument panel duct the instrument panel air outlets. Be sure the duct is properly aligned and connected to both outlets.
- Install the screws (1, 2 and 5) that secure the right side of the instrument panel duct (3) to the instrument panel cover (4). Tighten the screws securely.
- Install the screws (1, 2 and 5) that secure the left side of the instrument panel duct (3) to the instrument panel cover (4). Tighten the screws securely.
- Install the instrument panel demister ducts. Refer to «DUCT, INSTRUMENT PANEL DEMISTER, INSTALLATION»(ref-465931-S14127478492012042300000) .
- Install the instrument panel cover. Refer to «COVER, INSTRUMENT PANEL, INSTALLATION»(ref-465921-S25932359912012042300000) .
| WARNING | Disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable. Wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to take the proper precautions may result in accidental airbag deployment and possible serious or fatal injury. |
Note. Take the proper precautions to protect the face of the instrument panel cover from cosmetic damage while performing this procedure.
Note. The center demister duct is integral to the instrument panel cover and is not serviced separately.
Note. LHD model shown in illustrations. RHD model similar.
Scheme 43
Scheme 44
- Remove the instrument panel cover and place it on a workbench. Refer to «COVER, INSTRUMENT PANEL, REMOVAL»(ref-465921-S20829679442012042300000) .
- Remove the screw (2) that secures the left side instrument panel demister duct (3) to the instrument panel cover. NOTE: If the foam seal on a demister duct is deformed or damaged, the seal must be replaced.
- Disconnect the left side instrument panel demister duct from the center demister duct (1).
- Remove the screw (3) that secures the right side instrument panel demister duct (2) to the instrument panel cover NOTE: If the foam seal on a demister duct is deformed or damaged, the seal must be replaced.
- Disconnect the right side instrument panel demister duct from the center demister duct (1).
Note. Take the proper precautions to protect the face of the instrument panel cover from cosmetic damage while performing this procedure.
Note. LHD model shown in illustrations. RHD model similar.
Note. If the foam seal on an air outlet is deformed or damaged, the seal must be replaced.
- Connect the right side instrument panel demister duct (2) to the center demister duct (1).
- Install the screw (3) that secures the right side instrument panel demister duct to the center duct. Tighten the screw securely. NOTE: If the foam seal on an air outlet is deformed or damaged, the seal must be replaced.
- Connect the left side instrument panel demister duct (3) to the center demister duct (1).
- Install the screw (2) that secures the left side instrument panel demister duct to the center duct. Tighten the screw securely.
- Install the instrument panel cover. Refer to «COVER, INSTRUMENT PANEL, INSTALLATION»(ref-465921-S25932359912012042300000) .
| WARNING | Disable the airbag system before attempting any steering wheel, steering column or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury. |
| WARNING | Always make sure the A/C-heater system is turned off and that the ignition switch is in the OFF position prior to servicing the particulate air filter. Never place fingers or other objects into the filter opening of the HVAC housing. Failure to follow this warning may result in serious injury. |
Note. LHD model shown in illustrations. RHD model similar.
Scheme 45
Scheme 46
Scheme 47
- Remove the glove box bin. Refer to «GLOVE BOX, INSTRUMENT PANEL, REMOVAL»(ref-465921-S37826842652012042300000) .
- Remove the glove box shelf (2) from the instrument panel (1). Carefully pull the shelf rearward to disengage the four retainers.
- Disengage the retaining tab (1) that secures the particulate air filter cover (2) to the HVAC housing.
- Open the particulate air filter cover to disengage the hinge clips (3) and remove the cover.
- Remove the particulate air filter (1) from the HVAC housing (2) by pulling the filter element straight rearward, out of the housing.
Note. The particulate air filter is labeled with an arrow to indicate air flow direction through the filter. Make sure to properly install the particulate air filter. Failure to properly install the filter will result in the need to replace the filter sooner than required by design.
Note. LHD model shown in illustrations. RHD model similar.
- Install the particulate air filter (1) into the filter opening in the HVAC housing (2). Insert the particulate air filter directly into the housing with the arrows on the filter (3) pointing to the floor.
- Position the particulate air filter cover (2) to the HVAC housing and engage the hinge clips (3).
- Close the particulate air filter cover and engage the retaining tab (1). Make sure the retaining tab and hinges are fully engaged.
- Install the glove box shelf (2). Make sure the four retainers are fully engaged to the instrument pane (1).
- Install the glove box bin. Refer to «GLOVE BOX, INSTRUMENT PANEL, INSTALLATION»(ref-465921-S41254480452012042300000) .
| WARNING | Disable the airbag system before attempting any steering wheel, steering column or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury. |
Note. LHD model shown. RHD model similar.
- Disconnect and isolate the negative battery cable.
- Remove the passenger side instrument panel silencer.
- Disconnect the wire harness connector (1) from the blower motor (2).
- Remove the three screws (3) that secure the blower motor to the HVAC housing (4) and remove the blower motor.
Note. LHD model shown. RHD model similar.
- Position the blower motor (2) into the HVAC housing (4).
- Install the three screws (3) that secure the blower motor to the HVAC housing. Tighten the screws to 2.2 N.m (20 in. lbs.).
- Connect the wire harness connector (1) to the blower motor.
- Install the passenger side instrument panel silencer.
- Reconnect the negative battery cable.
| WARNING | Disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable. Wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to take the proper precautions may result in accidental airbag deployment and possible serious or fatal injury. |
Note. If the foam seal on an air outlet is deformed or damaged, the seal must be replaced.
Note. If the foam seal on an air outlet is deformed or damaged, the seal must be replaced.
| WARNING | Disable the airbag system before attempting any steering wheel, steering column or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury. |
Scheme 48
- Disconnect and isolate the negative battery cable.
- Remove the right quarter trim panel. Refer to «PANEL, QUARTER TRIM, REMOVAL»(ref-465921-S07773746672012042300000) .
- Remove the push-pin fasteners (3 and 5) that secure the lower ceiling duct (1) and rear floor duct (4) to the body.
- Disconnect the lower ceiling duct from the rear heater-A/C housing (2). First slide the lower ceiling duct upward into the upper ceiling duct, then disconnect the ceiling duct from the rear heater-A/C housing. See for more information. Refer to «UPPER CEILING DUCT»(ref-465931-S15690651152012042300000) .
- Disconnect the lower ceiling duct from the upper ceiling duct and remove the lower duct.
- Disconnect the rear floor duct from the rear heater-A/C housing and remove the floor duct.
Scheme 49
- Disconnect and isolate the negative battery cable.
- Remove the right quarter trim panel. Refer to «PANEL, QUARTER TRIM, REMOVAL»(ref-465921-S07773746672012042300000) .
- Remove the right side curtain air bag. Refer to «AIR BAG, SIDE CURTAIN, REMOVAL»(ref-465918-S15154120842012042300000) .
- Remove the three push-pin fasteners (1) that secure the upper ceiling duct (2) to the body.
- Disconnect the upper ceiling duct from the lower ceiling duct (3) and remove the upper duct.
| WARNING | Refer to the applicable warnings and cautions for this system before performing the following operation. Refer to PLUMBING, FRONT, WARNING and OIL, REFRIGERANT, STANDARD PROCEDURE . Failure to follow the warnings and cautions may result in serious or fatal injury. |
Note. The rear heater-A/C housing must be removed from the vehicle and disassembled for service of the A/C evaporator, heater core, mode-air door and the blend-air door.
Scheme 50
Note. Illustration shown with exhaust system and heat shield removed for clarity.
Scheme 51
- Disconnect and isolate the negative battery cable.
- Recover the refrigerant from the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- Drain the engine cooling system. Refer to «STANDARD PROCEDURE»(ref-465940-S34230748332012042300000) .
- Raise and support the vehicle.
- Remove the nut (1) that secures the underbody refrigerant lines (3) to the rear A/C expansion valve (2).
- Disconnect the rear underbody refrigerant lines from the rear A/C expansion valve and remove and discard the O-ring seals.
- Install plugs in, or tape over, all the opened refrigerant line fittings and rear expansion valve ports.
- Disengage the hose clamps (5) that secure the heater hoses (4) to the rear heater core tubes.
- Carefully disconnect the heater hoses from the rear heater core tubes.
- Lower the vehicle.
- Remove right quarter trim panel. Refer to «PANEL, QUARTER TRIM, REMOVAL»(ref-465921-S07773746672012042300000) .
- Remove the distribution ducts from the rear heater-A/C housing (3). Refer to «DUCT, DISTRIBUTION, REMOVAL»(ref-465931-S35075019512012042300000) .
- Disconnect the wire harness connector (2) from the rear heater-A/C wire harness.
- Remove the two bolts (4) that secure the rear heater-A/C housing to the body.
- Tip the top of the rear heater-A/C housing inboard to disengage the two plastic alignment pins from the holes (1) in body.
- Lift the rear heater-A/C housing upward and remove the rear housing from the vehicle.
Note. Replacement of the refrigerant line O-ring seals and gaskets is required anytime a refrigerant line is disconnected. Failure to replace the rubber O-ring seals and metal gaskets may result in a refrigerant system leak.
- Position the rear heater-A/C housing (3) into the opening in the floor panel and locate the two plastic alignment pins to the holes (1) in the body.
- Install the two bolts (1) that secure the rear heater-A/C housing to the body. Tighten the bolts to 3 N.m (26 in. lbs.).
- Connect the wire harness connector (2) to the rear heater-A/C wire harness.
- Install the rear distribution ducts. Refer to «DUCT, DISTRIBUTION, INSTALLATION»(ref-465931-S09888199212012042300000) .
- Install the right quarter trim panel. Refer to «PANEL, QUARTER TRIM, INSTALLATION»(ref-465921-S22832939962012042300000) . NOTE: Illustration shown with exhaust system and heat shield removed for clarity.
- Raise and support the vehicle.
- Remove the tape or plugs from the opened refrigerant line fittings and rear expansion valve ports.
- Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified O-rings as they are made of a special material for the R-134a refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Connect the underbody refrigerant lines (3) to the rear A/C expansion valve (2).
- Install the nut (1) that secures the underbody refrigerant lines to the to the rear A/C expansion valve. Tighten the nut to 11 N.m (97 in. lbs.).
- Connect the rear heater hoses (5) to the rear heater core tubes and install the heater hose clamps (4) securely.
- Lower the vehicle.
- Reconnect the negative battery cable.
- If the heater core is being replaced, flush the cooling system. Refer to «STANDARD PROCEDURE»(ref-465940-S34230748332012042300000) .
- Fill the engine cooling system. Refer to «STANDARD PROCEDURE»(ref-465940-S34230748332012042300000) .
- Evacuate and charge the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- Calibrate the front and rear A/C systems as follows: Initiate the Actuator Calibration function using a scan tool. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . Verify that the Actuator Calibration of the front A/C-heater control has passed. Correct any errors before proceeding if the Actuator Calibration has not passed. Rotate the rear temperature control knob counter clockwise to the full cold position. Allow the control to remain in the full cold position for 5 seconds. Rotate the rear temperature control knob clockwise to the full hot position. Allow the control to remain in the full hot position for 5 seconds. Calibration is now complete.
Scheme 52
The rear blower motor (1) is located in the heater-A/C housing, behind the right quarter panel trim. The rear blower motor consist of a mounting plate with a 12 volt Direct Current (DC) motor (2). The motor has an integral wire harness connector (3) and a blower wheel (4) attached to the motor shaft.
- Disconnect and isolate the negative battery cable.
- Remove the right quarter trim panel. Refer to «PANEL, QUARTER TRIM, REMOVAL»(ref-465921-S07773746672012042300000) .
- Disconnect the wire harness connector (1) from the rear blower motor (2).
- Remove the three screws (3) that secure the rear blower motor to the rear heater-A/C housing (4) and remove the blower motor.
- Position the rear blower motor (2) into the rear heater-A/C housing (4).
- Install the three screws (3) that secure the rear blower motor to the housing. Tighten the screws to 2.2 N.m (20 in. lbs.).
- Connect the wire harness connector (1) to the blower motor.
- Install the right quarter trim panel. Refer to «PANEL, QUARTER TRIM, INSTALLATION»(ref-465921-S22832939962012042300000) .
- Reconnect the negative battery cable.
Scheme 53
- Rotate the air outlet (1) being serviced clockwise until the retaining tabs on the back of the outlet disengage from the headliner (2).
- Remove the air outlet from the headliner.
Scheme 54
- Position the air outlet (1) being serviced to the opening in the headliner (2).
- Rotate the air outlet counterclockwise until the retaining tabs on the back of the outlet are fully engaged to the headliner.
| WARNING | Refer to the applicable Warnings and Cautions for this system before performing the following operation. Refer to PLUMBING, FRONT, WARNING and PLUMBING, FRONT, CAUTION . Failure to follow these instructions may result in possible serious or fatal injury. |
Scheme 55
Scheme 56
Scheme 57
- Disconnect and isolate the negative battery cable.
- Remove the air cleaner housing, air intake tube and resonator, as equipped.
- Remove the engine trim cover, if equipped.
- Recover the refrigerant from the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- Remove the grille. Refer to «GRILLE, REMOVAL»(ref-465921-S35029314672012042300000) .
- Remove the bolt (2) that secures the A/C liquid line (5) to the upper radiator support.
- Remove the nut (6) that secures the A/C discharge line (4) and A/C liquid line to the A/C condenser (1).
- Disconnect the A/C discharge line and A/C liquid line from the A/C condenser and remove and discard the seals.
- Install plugs in, or tape over the opened refrigerant line fittings and the condenser ports. NOTE: Illustration shown with radiator removed from view for clarity.
- Remove the hood latch assembly from the radiator crossmember and position it out of the way. Refer to «LATCH, HOOD, REMOVAL»(ref-465921-S11352823332012042300000) .
- Disengage the two plastic air dams from the front of engine compartment and position them out of the way.
- Position the two radiator crossmember support bars out of the way.
- Disconnect the automatic transmission cooler lines (1) from the transmission fluid cooler (2). Refer to «TUBES AND HOSES, TRANSMISSION OIL COOLER, STANDARD PROCEDURE»(ref-465940-S09469520772012042300000) .
- Install plugs in, or tape over the automatic transmission cooler line fittings and the fluid cooler ports.
- If equipped, remove the power steering fluid cooler (3) from the A/C condenser (4) and position it out of the way. Refer to «COOLER, POWER STEERING, REMOVAL»(ref-465942-S12294738942012042300000) .
- Disengage the two retaining tabs (1 and 2) that secure A/C condenser to the radiator.
- Tip the A/C condenser forward and carefully remove from engine compartment.
| CAUTION | Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE . Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage. |
Note. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
Note. If only the A/C condenser is being replaced, add 30 milliliters (1 fluid ounce) of refrigerant oil to the refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
Note. Replacement of the refrigerant line seals is required anytime a refrigerant line is disconnected. Failure to replace the rubber and metal seals could result in a refrigerant system leak.
Note. Be certain that each of the radiator and condenser air dams are installed in their proper locations. These air dams are required for the A/C and engine cooling systems to perform as designed.
- Position the A/C condenser (4) into the engine compartment.
- Engage the two retaining tabs (1 and 2) that secure A/C condenser to the radiator.
- If equipped, install the power steering fluid cooler (3) onto the A/C condenser. Refer to «COOLER, POWER STEERING, INSTALLATION»(ref-465942-S18051952812012042300000) . NOTE: Illustration shown with radiator removed from view for clarity.
- Remove the tape or plugs from the automatic transmission cooler line fittings and the fluid cooler ports.
- Connect the automatic transmission cooler lines (1) to the transmission fluid cooler (2).
- Reposition the two radiator crossmember support bars.
- Reposition the two plastic air dams to the front of engine compartment and install the push-pin retainers.
- Install the hood latch assembly to the radiator crossmember. Refer to «LATCH, HOOD, INSTALLATION»(ref-465921-S06126773952012042300000) .
- Remove the tape or plugs from the opened refrigerant line fittings and the condenser ports.
- Lubricate new seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified seals as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Connect the A/C liquid line (5) and A/C discharge line (4) to the A/C condenser (1).
- Install the nut (6) that secures the A/C discharge and liquid line to the A/C condenser. Tighten the nut to 20 N.m (15 ft. lbs.).
- Install the bolt (2) that secures the A/C liquid line to the upper radiator support. Tighten the bolt securely.
- Install the grille. Refer to «GRILLE, INSTALLATION»(ref-465921-S22387054082012042300000) .
- Install the air cleaner housing, air intake tube and resonator, as equipped.
- Install the engine trim cover, if equipped.
- Reconnect the negative battery cable.
- Evacuate the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- If the A/C condenser is being replaced, add 30 milliliters (1 fluid ounce) of refrigerant oil to the refrigerant system. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to «OIL, REFRIGERANT, STANDARD PROCEDURE»(ref-465931-S20150539792012042300000) . Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Charge the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- Check the automatic transmission fluid level and refill as required.
| WARNING | Refer to the applicable Warnings and Cautions for this system before performing the following operation. Refer to PLUMBING, FRONT, WARNING and PLUMBING, FRONT, CAUTION . Failure to follow these instructions may result in possible serious or fatal injury. |
| WARNING | Disable the airbag system before attempting any steering wheel, steering column or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to follow these instructions may result in accidental airbag deployment and possible serious or fatal injury. |
Note. Take the proper precautions to protect the front face of the instrument panel from cosmetic damage while performing this procedure.
Note. LHD model shown in illustrations. RHD model similar.
Scheme 58
Scheme 59
- Disconnect and isolate the negative battery cable.
- Drain the engine cooling system. Refer to «STANDARD PROCEDURE»(ref-465940-S34230748332012042300000) .
- Remove the passenger side instrument panel silencer.
- Remove the glove box, glove box shelf and the trim panel, located behind the glove box. Refer to «GLOVE BOX, INSTRUMENT PANEL, REMOVAL»(ref-465921-S37826842652012042300000) .
- Remove the nut (1) that secures the passenger side end of the HVAC housing (3) to the instrument panel support (2).
- Remove the front floor console. Refer to «CONSOLE, FLOOR, REMOVAL»(ref-465921-S08861968812012042300000) .
- Remove the radio. Refer to «RADIO, REMOVAL»(ref-465944-S15971930262012042300000) .
- Remove the bin from the center of the instrument panel.
- Remove the four nuts (1) that secure the HVAC housing to the center of the instrument panel support. NOTE: Illustration shown with instrument panel removed from view for clarity.
- On LHD, remove the driver side instrument panel silencer.
- Remove the push pin (3) that secures the left side floor ducts (1) to the instrument panel.
- Disconnect the left side floor ducts from the HVAC housing (2). NOTE: Removal of the instrument panel from the vehicle is not required to perform this procedure. It is only necessary to position the instrument panel so that removal of the heater core is possible.
- Position the instrument panel to gain full access to the heater core located on the left side of the HVAC air distribution housing. Refer to «PANEL, INSTRUMENT, REMOVAL»(ref-465921-S18301203412012042300000) . NOTE: Take proper precautions to protect the carpeting from engine coolant. Have absorbent toweling readily available to clean up any spills.
- Remove the two clamps (2 and 6) that secure the heater tubes (1) to the heater core (3).
- Disconnect the heater core tubes from the heater core and remove and discard the O-ring seals.
- Install plugs in, or tape over the opened heater core tubes and heater core ports.
- Remove the screw (7) that secures the heater core retaining bracket (5) to the air distribution housing and position the bracket out of the way. NOTE: If the foam seal around the heater core is deformed or damaged, it must be replaced.
- Carefully pull the heater core out of the air distribution housing.
Note. LHD model shown in illustrations. RHD model similar.
- Carefully install the heater core (3) into the left side of the HVAC air distribution housing (4).
- Reposition the heater core retaining bracket (5) and install the screw (7). Tighten the screw to 2.2 N.m (20 in. lbs.).
- Remove the tape or plugs from the heater core tubes (1) and heater core ports.
- Lubricate new rubber O-ring seals with clean engine coolant and install them onto the heater core tubes. Use only the specified O-ring as they are made of a special material for the engine cooling system.
- Connect the heater core tubes to the heater core.
- Install the two clamps (2 and 6) that secure the heater core tubes to the heater core. Tighten the screws on the clamps to 1.7 N.m (15 in. lbs.). NOTE: Illustration shown with instrument panel removed from view for clarity.
- Connect the left side floor ducts to the HVAC housing (2).
- Reposition and install the instrument panel as necessary. Refer to «PANEL, INSTRUMENT, INSTALLATION»(ref-465921-S30956350222012042300000) .
- Install the push pin (3) that secures the left side floor ducts to the instrument panel.
- On LHD models, install the driver side instrument panel silencer.
- Install the four nuts (1) that secure the HVAC housing to the center of the instrument panel support. Tighten the nuts to 4.5 N.m (40 in. lbs.).
- Install the bin into the center of the instrument panel.
- Install the radio. Refer to «RADIO, INSTALLATION»(ref-465944-S03770205002012042300000) .
- Install the floor console. Refer to «CONSOLE, FLOOR, INSTALLATION»(ref-465921-S33150999752012042300000) .
- Install the nut (1) that secures the passenger side end of the HVAC housing (3) to the instrument panel support (2). Tighten the nut to 4.5 N.m (40 in. lbs.).
- Install the IP trim panel, glove box shelf and the glove box. Refer to «GLOVE BOX, INSTRUMENT PANEL, INSTALLATION»(ref-465921-S41254480452012042300000) .
- Install the passenger side instrument panel silencer.
- Reconnect the negative battery cable.
- If the heater core is being replaced, flush the cooling system. Refer to «STANDARD PROCEDURE»(ref-465940-S34230748332012042300000) .
- Refill the engine cooling system. Refer to «STANDARD PROCEDURE»(ref-465940-S34230748332012042300000) .
Scheme 60
The high side service port (1) is located on the A/C liquid line, near the upper radiator support. The low side service port (2) is located on the A/C suction line, near the left strut tower. Refrigerant system service ports are used to recover, recycle, evacuate, charge and test the A/C refrigerant system. Unique sizes are used on the two service ports for the R-134a refrigerant system to ensure the proper connections are made when using refrigerant system service equipment, and that the system is not accidentally contaminated with R-12 refrigerant, or by service equipment used for R-12 refrigerant.
Note. Protective caps aid in service port sealing and help protect the refrigerant system from contamination. Remember to always reinstall the protective caps onto the service ports when refrigerant system service is complete.
Each of the service ports has a threaded plastic protective cap installed over it from the factory.
The high side and low side A/C service port valve cores and the protective caps are serviceable items.
| WARNING | Refer to the applicable warnings and cautions for this system before performing the following operation. Refer to PLUMBING, FRONT, WARNING and PLUMBING, FRONT, CAUTION . Failure to follow these instructions may result in serious or fatal injury. |
Scheme 61
Note. Typical A/C service port shown.
- Remove the protective cap (1) from the service port (2).
- Recover the refrigerant from the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- Using a Schrader-type valve core tool, remove the valve core (3) from the service port.
- Install a plug in, or tape over the opened service port(s).
Note. Typical A/C service port shown.
- Lubricate the valve core (3) with clean refrigerant oil prior to installation. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Remove the tape or plug from the service port (2). CAUTION: Damage may result to a service port valve core if the valve core is not fully seated in the A/C service port. Such damage can result in a loss of refrigerant.
- Install and tighten the valve core into the service port(s) using a Schrader type valve core tool.
- Evacuate and charge the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) . NOTE: The protective cap helps aid in service port sealing and helps protect the refrigerant system from contamination. Remember to always reinstall the protective cap onto the service port when refrigerant system service is complete.
- Install the protective cap (1) onto the service port.
Note. LHD model shown. RHD model similar.
- Remove the HVAC housing assembly. Refer to «HOUSING, HVAC, REMOVAL»(ref-465931-S12829415182012042300000) .
- Disassemble the HVAC housing as necessary to access the A/C evaporator (2). Refer to «HOUSING, HVAC, DISASSEMBLY»(ref-465931-S00191112852012042300000) .
- Remove the tapping block (1) from the evaporator tubes.
- Lift the A/C evaporator and insulator (3) out of the lower half of the HVAC housing (4).
- If required, remove the insulator from the A/C evaporator. If the insulator is deformed or damaged, it must be replaced.
| CAUTION | Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE . Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage. |
Note. If the A/C evaporator is being replaced, add 60 milliliters (2 fluid ounces) of refrigerant oil to the refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
Note. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
Note. Replacement of the refrigerant line seals is required anytime the A/C expansion valve is removed from the A/C evaporator. Failure to replace the rubber and metal seals may result in a refrigerant system leak.
Note. LHD model shown. RHD model similar.
- If removed, install the insulator (3) over the A/C evaporator (2). If the insulator is deformed or damaged, it must be replaced.
- Install the A/C evaporator into the lower half of the HVAC housing (4). Make sure that the evaporator drain within the HVAC housing is clean and unrestricted and that the insulator and evaporator are properly positioned in the housing.
- Install the tapping block (1) onto the evaporator tubes.
- Assemble the HVAC housing. Refer to «HOUSING, HVAC, ASSEMBLY»(ref-465931-S38209546032012042300000) .
- Install the HVAC housing assembly. Refer to «HOUSING, HVAC, INSTALLATION»(ref-465931-S03041722752012042300000) .
- If the A/C evaporator is being replaced, add 60 milliliters (2 fluid ounces) of refrigerant oil to the refrigerant system. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to «OIL, REFRIGERANT, STANDARD PROCEDURE»(ref-465931-S20150539792012042300000) . Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
| WARNING | Refer to the applicable Warnings and Cautions for this system before performing the following operation PLUMBING, FRONT, WARNING and PLUMBING, FRONT, CAUTION . Failure to follow these instructions may result in possible serious or fatal injury. |
Note. 5.7L model shown in illustrations. 3.6L model similar.
- Disconnect and isolate the negative battery cable.
- Remove the air cleaner housing, air intake tube and resonator, as equipped.
- Remove the engine trim cover, if equipped.
- Recover the refrigerant from the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- Remove the grille. Refer to «GRILLE, REMOVAL»(ref-465921-S35029314672012042300000) .
- Disconnect the engine wire harness from the A/C pressure transducer (3) and remove the transducer from the A/C discharge line (4), if required. Refer to «TRANSDUCER, A/C PRESSURE, REMOVAL»(ref-465931-S36104551712012042300000) .
- Remove the bolt (2) that secures the A/C liquid line (5) to the upper radiator support.
- Remove the nut (6) that secures the A/C discharge line and A/C liquid line to the A/C condenser (1).
- Disconnect the A/C discharge line and A/C liquid line from the A/C condenser.
- Separate the liquid line fitting from the discharge line fitting and remove and discard the seals.
- Remove the nut (2) that secures the A/C discharge line (3) to the A/C compressor.
- Disconnect the A/C discharge line from the A/C compressor and remove and discard the seal.
- Remove the A/C discharge line from the engine compartment.
- Install plugs in, or tape over the opened refrigerant line fittings and the compressor and condenser ports.
| CAUTION | Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE . Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage. |
Note. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
Note. Replacement of the refrigerant line seals is required anytime a refrigerant line is disconnected. Failure to replace the rubber and metal seals could result in a refrigerant system leak.
Note. 5.7L model shown in illustrations. 3.6L model similar.
- Position the A/C discharge line (3) into the engine compartment.
- Remove the tape or plugs from the opened refrigerant line fittings and the compressor and condenser ports.
- Lubricate new seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified seals as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Connect the A/C discharge line to the A/C compressor.
- Install the nut (2) that secures the A/C discharge line to the A/C compressor. Tighten the nut to 20 N.m (15 ft. lbs.).
- Engage the A/C liquid line (5) to the A/C discharge line (4) and connect the lines to the A/C condenser (1).
- Install the nut (6) that secures the A/C discharge and liquid lines to the A/C condenser. Tighten the nut to 20 N.m (15 ft. lbs.).
- Install the bolt (2) that secures the A/C liquid line to the upper radiator support. Tighten the bolt securely.
- If removed, install the A/C pressure transducer (3) onto the A/C discharge line. Tighten the A/C pressure transducer to 5.1 N.m (45 in. lbs.).
- Connect the engine wire harness to the A/C pressure transducer.
- Install the grille. Refer to «GRILLE, INSTALLATION»(ref-465921-S22387054082012042300000) .
- Install the air cleaner housing, air intake tube and resonator, as equipped.
- Install the engine trim cover, if equipped.
- Reconnect the negative battery cable.
- Evacuate the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- Adjust the refrigerant oil level. Refer to «OIL, REFRIGERANT, STANDARD PROCEDURE»(ref-465931-S20150539792012042300000) .
- Charge the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
| WARNING | Refer to the applicable Warnings and Cautions for this system before performing the following operation PLUMBING, FRONT, WARNING and PLUMBING, FRONT, CAUTION . Failure to follow these instructions may result in possible serious or fatal injury. |
Note. The A/C liquid line is serviced in two sections.
Note. LHD model shown in illustrations.
| CAUTION | Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE . Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage. |
Note. When replacing multiple A/C system components, refer to the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
Note. Replacement of the refrigerant line O-ring seals and gaskets is required anytime a refrigerant line is disconnected. Failure to replace the rubber O-ring seals and metal gaskets could result in a refrigerant system leak.
Note. LHD model shown in illustrations.
| WARNING | Refer to the applicable Warnings and Cautions for this system before performing the following operation PLUMBING, FRONT, WARNING and PLUMBING, FRONT, CAUTION . Failure to follow these instructions may result in possible serious or fatal injury. |
Note. The A/C liquid line is serviced in two sections.
Note. LHD model shown in illustrations.
| CAUTION | Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE . Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage. |
Note. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
Note. Replacement of the refrigerant line seals is required anytime a refrigerant line is disconnected. Failure to replace the rubber and metal seals could result in a refrigerant system leak.
Note. LHD model shown in illustrations.
| WARNING | Refer to the applicable Warnings and Cautions for this system before performing the following operation. Refer to PLUMBING, FRONT, WARNING and PLUMBING, FRONT, CAUTION . Failure to follow these instructions may result in possible serious or fatal injury. |
Note. LHD model shown in illustrations.
Scheme 62
- Disconnect and isolate the negative battery cable.
- Remove the air cleaner housing, air intake tube and resonator, as equipped.
- Remove the engine trim cover, if equipped.
- Recover the refrigerant from the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- Remove the evaporative emissions purge solenoid valve from the A/C liquid and suction line bracket located on the left front strut tower and position it out of the way. Refer to «SOLENOID, EVAPORATIVE EMISSIONS PURGE, REMOVAL»(ref-465941-S09510040512012042300000) .
- Remove the nut (2) that secures the front section of the A/C suction line (3) to the rear section of the A/C suction line (1).
- Disconnect the A/C suction lines from each other and remove and discard the seal.
- Remove the nut (2) that secures the front section of the A/C liquid line (3) to the rear section of the A/C liquid line (1).
- Disconnect the A/C liquid lines from each other and remove and discard the seal.
- Remove the windshield wiper arms and wiper module. Refer to «LINKAGE, WIPER ARM, REMOVAL»(ref-465980-S22903793842012042300000) .
- Remove the cowl extension silencer. Refer to «SILENCER, COWL EXTENSION, REMOVAL»(ref-465921-S28830981762012042300000) .
- Remove the nut (2) that secures the A/C liquid and suction line assembly (1) to the stud (3) located on the left front strut tower.
- Remove the bolt (4) that secures the A/C liquid and suction line assembly to the cowl panel bracket.
- Remove the nut (6) that secures the A/C liquid and suction line assembly to the A/C expansion valve (5).
- Disengage the A/C liquid and suction line assembly from the stud located on the strut tower.
- Disconnect the A/C liquid and suction line assembly from the A/C expansion valve.
- Remove the A/C liquid and suction line assembly from the engine compartment and remove and discard the seals.
- Remove the two bolts (1) that secure the A/C expansion valve (2) to the evaporator tube tapping block.
- Remove the A/C expansion valve from the evaporator tubes and remove and discard the seals.
- Install plugs in, or tape over the opened refrigerant line fittings and evaporator ports.
| CAUTION | Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE . Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage. |
Note. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
Note. Replacement of the refrigerant line seals is required anytime the A/C expansion valve is removed from the A/C evaporator. Failure to replace the rubber and metal seals may result in a refrigerant system leak.
Note. LHD model shown in illustrations.
- Remove the tape or plugs from all the opened refrigerant line fittings and evaporator ports.
- Lubricate new seals with clean refrigerant oil and install them onto the evaporator tube and refrigerant line fittings. Use only the specified seals as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Install the A/C expansion valve (2) onto the evaporator tubes.
- Install the two bolts (1) that secure the A/C expansion valve to the evaporator tube tapping block. Tighten the bolts to 11 N.m (97 in. lbs.).
- Position the A/C liquid and suction line assembly (1) into the engine compartment.
- Remove the tape or plugs from the opened refrigerant line fittings and the expansion valve ports.
- Lubricate new seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified seals as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Connect the A/C liquid and suction line assembly to the A/C expansion (5).
- Engage the A/C liquid and suction line assembly to stud (3) located on the left front strut tower.
- Install the nut (6) that secures the A/C liquid and suction line assembly to the A/C expansion valve. Tighten the nut to 20 N.m (15 ft. lbs.).
- Install the bolt (4) that secures the A/C liquid and suction line assembly to the cowl panel bracket. Tighten the bolt securely.
- Install the nut (2) that secures the A/C liquid and suction line assembly to the stud located on the strut tower. Tighten the nut securely.
- Install the cowl extension silencer. Refer to «SILENCER, COWL EXTENSION, INSTALLATION»(ref-465921-S21852433032012042300000) .
- Install the windshield wiper module and arms. Refer to «LINKAGE, WIPER ARM, INSTALLATION»(ref-465980-S38370231332012042300000) .
- Connect the front section of the A/C liquid line (3) to the rear section of the A/C liquid line (1).
- Install the nut (2) that secures the two sections of the A/C liquid line together. Tighten the nut to 20 N.m (15 ft. lbs.).
- Connect the front section of the A/C suction line (3) to the rear section of the A/C suction line (1).
- Install the nut (2) that secures the two sections of the A/C suction line together. Tighten the nut to 20 N.m (15 ft. lbs.).
- Install the evaporative emissions purge solenoid valve. Refer to «SOLENOID, EVAPORATIVE EMISSIONS PURGE, INSTALLATION»(ref-465941-S18229171792012042300000) .
- Install the air cleaner housing, air intake tube and resonator, as equipped.
- Install the engine trim cover, if equipped.
- Reconnect the negative battery cable.
- Evacuate the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- Adjust the refrigerant oil level. Refer to «OIL, REFRIGERANT, STANDARD PROCEDURE»(ref-465931-S20150539792012042300000) .
- Charge the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
Scheme 63
The rear heater core (1) is located in the rear HVAC housing, behind the right quarter trim panel. The rear heater core is a heat exchanger made of rows of tubes and fins. The heater core tubes (2) are permanently attached to the heater core and cannot be serviced separately.
The rear HVAC housing must be removed from the vehicle to service the rear heater core.
| WARNING | Refer to the applicable warnings and cautions for this system before performing the following operation. Refer to PLUMBING, FRONT, WARNING and PLUMBING, FRONT, CAUTION . Failure to follow these instructions may result in serious or fatal injury. |
- Remove the rear heater-A/C housing (3) and place it on a workbench. Refer to «HOUSING, HVAC, REMOVAL»(ref-465931-S12829415182012042300000) .
- Carefully remove the foam seal (4) from the bottom of the rear heater-A/C housing. Replace the seal if it is deformed or damaged.
- Remove the screw (2) that secures the flange (1) to the rear heater-A/C housing.
- Disengage the retaining tabs that secure each end of the flange to the rear heater-A/C housing and remove the flange.
- Carefully pull the rear heater core and tube assembly (1) out of the side of the rear heater-A/C housing. If the foam seals on the heater core are deformed or damaged, they must be replaced.
Note. Replacement of the refrigerant line O-ring seals and gaskets is required anytime a refrigerant line is disconnected. Failure to replace the rubber O-ring seals and metal gaskets may result in a refrigerant system leak.
- Install the rear heater core and tube assembly (1) into the side of the rear heater-A/C housing (2). Make sure that the foam seals are properly installed.
- Align the retaining tabs and install the flange (1) onto the bottom of the rear heater-A/C housing (3). Make sure the retaining tabs are fully engaged.
- Install the screw (2) that secures the flange to the rear heater-A/C housing. Tighten the screw to 2.2 N.m (20 in. lbs.).
- Install the foam seal (4) onto the flange. If the seal is deformed or damaged, it must be replaced. NOTE: If the heater core is being replaced, flush the cooling system. Refer to «STANDARD PROCEDURE»(ref-465940-S34230748332012042300000) .
- Install the rear heater-A/C housing. Refer to «HOUSING, HVAC, INSTALLATION»(ref-465931-S03041722752012042300000) .
Scheme 64
The rear A/C evaporator (1) is located within the rear heater-A/C housing, behind the right quarter trim panel. The rear A/C evaporator is positioned in the rear heater-A/C housing so that all air entering the housing must pass over the evaporator fins before it is distributed through the rear ducts and outlets. However, air passing over the rear evaporator fins will only be conditioned when the A/C compressor is engaged and circulating refrigerant through the A/C evaporator.
The A/C expansion valve is connected and sealed to the A/C evaporator tubes (2) by use of an aluminum tapping plate (3) and rubber O-ring seals (4).
The rear A/C evaporator can only be serviced by removing and disassembling the rear heater-A/C housing.
| WARNING | Refer to the applicable warnings and cautions for this system before performing the following operation. Refer to PLUMBING, FRONT, WARNING and PLUMBING, FRONT, CAUTION . Failure to follow these instructions may result in serious or fatal injury. |
- Remove the rear heater-A/C housing and place it on a workbench. Refer to «HOUSING, HVAC, REMOVAL»(ref-465931-S12829415182012042300000) .
- Disassemble the rear heater-A/C housing as necessary to access the A/C evaporator (1). Refer to «HOUSING, HVAC, DISASSEMBLY»(ref-465931-S00191112852012042300000) .
- Carefully lift the rear A/C evaporator out of the outboard half of the rear heater-A/C housing (2) and remove and discard the rubber O-ring seals (3). If the foam seals around the rear evaporator are deformed or damaged, they must be replaced.
| CAUTION | Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE . Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage. |
Note. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
Note. If the rear A/C evaporator is being replaced, add 30 milliliters (1 fluid ounce) of refrigerant oil to the refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
Note. Replacement of the refrigerant line O-ring seals and gaskets is required anytime a refrigerant line is disconnected. Failure to replace the rubber O-ring seals and metal gaskets may result in a refrigerant system leak.
- Position the rear A/C evaporator (1) into the outboard half of the rear heater-A/C housing (2).
- Lubricate new rubber O-ring seals (3) with clean refrigerant oil and install them onto the evaporator tube fittings. Use only the specified O-rings as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Assemble the rear heater-A/C housing. Refer to «HOUSING, HVAC, ASSEMBLY»(ref-465931-S38209546032012042300000) .
- Install the rear heater-A/C housing. Refer to «HOUSING, HVAC, INSTALLATION»(ref-465931-S03041722752012042300000) .
- If the rear A/C evaporator is being replaced, add 30 milliliters (1 fluid ounce) of refrigerant oil to the refrigerant system. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to «OIL, REFRIGERANT, STANDARD PROCEDURE»(ref-465931-S20150539792012042300000) . Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
| WARNING | Refer to the applicable warnings and cautions for this system before performing the following operation. Refer to PLUMBING, FRONT, WARNING and PLUMBING, FRONT, CAUTION . Failure to follow these instructions may result in serious or fatal injury. |
Scheme 65
- Disconnect and isolate the negative battery cable.
- Recover the refrigerant from the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- Raise and support the vehicle.
- Remove the two nuts (6 and 7) that secure the underbody refrigerant lines (5 and 9) to the upper A/C suction and liquid lines (4 and 10).
- Disconnect the underbody refrigerant lines and remove and discard the O-ring seals.
- If servicing the upper A/C suction and liquid lines, remove the two nuts (1 and 2) that secure the upper lines to the bracket (3) located on the dash panel.
- Partially drain the engine cooling system. Refer to «STANDARD PROCEDURE»(ref-465940-S34230748332012042300000) .
- Disconnect the heater hoses from the underbody heater lines (8).
- Remove the muffler, resonator and tail pipe assembly. Refer to «MUFFLER, EXHAUST, REMOVAL»(ref-465927-S06611622902012042300000) .
- Support the fuel tank and remove the two right side fuel tank straps. Refer to «TANK, FUEL, REMOVAL»(ref-465971-S12177436462012042300000) .
- Remove the right rear caliper and position it out of the way. Refer to «CALIPER, DISC BRAKE, REMOVAL»(ref-465922-S03520429842012042300000) .
- Remove the right rear shock absorber from the lower control arm (Refer to «SHOCK ABSORBER, SUSPENSION»(ref-465936-S10493113682012042300000) ).
- Support and partially lower the right side of the rear body cradle. Refer to «CROSSMEMBER, REAR, REMOVAL»(ref-465925-S13755077842012042300000) or «CROSSMEMBER, TRANSMISSION, REMOVAL»(ref-465925-S23636888812012042300000) .
- Remove the nut (1) that secures the underbody refrigerant lines (3) to the rear A/C expansion valve (2).
- Disconnect the rear underbody refrigerant lines from the rear A/C expansion valve and remove and discard the O-ring seals.
- Install plugs in, or tape over, all the opened refrigerant line fittings and rear expansion valve ports.
- Disengage the hose clamps (5) that secure the heater hoses (4) to the rear heater core tubes.
- Carefully disconnect the heater hoses from the rear heater core tubes. NOTE: Illustration shown with rear axle and cradle removed for clarity.
- Remove the heat shields as required from the vehicle underbody.
- Disengage the five mounting brackets (2 and 4) that secure the underbody line assembly (1) to the five studs (3) located on the vehicle underbody.
- Route the underbody line assembly over the rear axle and cradle and remove the line assembly from the vehicle.
| CAUTION | Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE . Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage. |
Note. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
Note. Replacement of the refrigerant line O-ring seals and gaskets is required anytime a refrigerant line is disconnected. Failure to replace the rubber O-ring seals and metal gaskets may result in a refrigerant system leak.
Note. Illustration shown with rear axle and cradle removed for clarity.
- Route the underbody line assembly (1) over the rear axle and cradle and position the line assembly to the vehicle underbody.
- Engage the five mounting brackets (2 and 4) to the five studs (3) on the vehicle underbody.
- Install the previously removed underbody heat shields.
- Remove the tape or plugs from the opened refrigerant line fittings and rear expansion valve ports.
- Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified O-rings as they are made of a special material for the R-134a refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Connect the underbody refrigerant lines (3) to the rear A/C expansion valve (2).
- Install the nut (1) that secures the underbody refrigerant lines to the to the rear A/C expansion valve. Tighten the nut to 11 N.m (97 in. lbs.).
- Connect the rear heater hoses (5) to the rear heater core tubes and install the heater hose clamps (4) securely.
- Install the rear body cradle. Refer to «CROSSMEMBER, REAR, INSTALLATION»(ref-465925-S35194968802012042300000) or «CROSSMEMBER, TRANSMISSION, INSTALLATION»(ref-465925-S16973199262012042300000) .
- Install the right rear shock absorber onto the lower control arm (Refer to «SHOCK ABSORBER, SUSPENSION»(ref-465936-S10493113682012042300000) ).
- Install the right rear caliper. Refer to «CALIPER, DISC BRAKE, INSTALLATION»(ref-465922-S02225644202012042300000) .
- Install the two right side fuel tank straps. Refer to «TANK, FUEL, INSTALLATION»(ref-465971-S36771431472012042300000) .
- Install the muffler, resonator and tail pipe assembly. Refer to «MUFFLER, EXHAUST, INSTALLATION»(ref-465927-S13843788562012042300000) .
- If servicing the upper A/C suction and liquid lines (4 and 10), install the upper lines onto the bracket (3) and install the two retaining nuts (1 and 2). Tighten the nuts securely.
- Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified O-rings as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Connect the underbody refrigerant lines (5 and 9) to the upper A/C suction and liquid lines and install the two retaining nuts (6 and 7). Tighten the nuts to 20 N.m (15 ft. lbs.).
- Connect the heater hoses to the underbody heater lines (8) and install the heater hose clamps securely.
- Lower the vehicle.
- Reconnect the negative battery cable.
- Fill the engine cooling system. Refer to «STANDARD PROCEDURE»(ref-465940-S34230748332012042300000) .
- Evacuate the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- Adjust the refrigerant oil level as necessary. Refer to «OIL, REFRIGERANT, STANDARD PROCEDURE»(ref-465931-S20150539792012042300000) .
- Charge the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
Scheme 66
The rear A/C expansion valve (1) is of a thermostatic expansion valve (TXV) design and controls the amount of refrigerant entering the rear A/C evaporator. The rear A/C expansion valve consists of an aluminum H-valve type body with an integral thermal sensor (3) and a mounting stud (2) for the rear refrigerant lines. The rear A/C expansion valve is located on the bottom of the rear heater-A/C housing, which extends through the rear floor panel, behind the right rear wheel.
| WARNING | Refer to the applicable warnings and cautions for this system before performing the following operation. Refer to PLUMBING, FRONT, WARNING and PLUMBING, FRONT, CAUTION . Failure to follow these instructions may result in serious or fatal injury. |
Note. Illustrations shown with rear exhaust and exhaust shield removed for clarity.
Scheme 67
Scheme 68
- Disconnect and isolate the negative battery cable.
- Recover the refrigerant from the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- Raise and support the vehicle.
- Remove the nut (1) that secures the underbody refrigerant lines (3) to the rear A/C expansion valve (2).
- Disconnect the rear underbody refrigerant lines from the rear A/C expansion valve, remove and discard the O-ring seals and carefully position the underbody refrigerant lines out of the way.
- Remove the two bolts (1) that secure the rear A/C expansion valve (2) to the rear A/C evaporator.
- Remove the rear A/C expansion valve and remove and discard the O-ring seals from the rear evaporator tubes.
- Install plugs in, or tape over the opened underbody refrigerant lines, rear evaporator tubes and all rear expansion valve ports.
| CAUTION | Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE . Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage. |
Note. When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to OIL, REFRIGERANT, STANDARD PROCEDURE .
Note. Replacement of the refrigerant line O-ring seals is required anytime the A/C expansion valve is removed from the A/C evaporator. Failure to replace the rubber O-ring seals may result in a refrigerant system leak.
Note. Illustrations shown with rear exhaust and exhaust shield removed for clarity.
- Remove the tape or plugs from the opened underbody refrigerant lines, rear evaporator tubes and expansion valve ports.
- Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the rear evaporator tubes. Use only the specified O-rings as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Install the rear A/C expansion valve (2) onto the rear evaporator tubes and install the two bolts (1). Tighten the bolts to 11 N.m (97 in. lbs.).
- Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the rear underbody refrigerant line fittings. Use only the specified O-rings as they are made of a special material for the R-134a refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
- Connect the underbody refrigerant lines (3) to the rear A/C expansion valve (2) and install the nut (1). Tighten the nut to 11 N.m (97 in. lbs.).
- Lower the vehicle.
- Reconnect the negative battery cable.
- Evacuate the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .
- Adjust the refrigerant oil level. Refer to «OIL, REFRIGERANT, STANDARD PROCEDURE»(ref-465931-S20150539792012042300000) .
- Charge the refrigerant system. Refer to «PLUMBING, FRONT, STANDARD PROCEDURE»(ref-465931-S04294051912012042300000) .