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12. REMOVE A/C CONTROL ASSEMBLY Remove the 2 screws and pull out the A/C control assembly, then disconnect the connector. NOTE: Be careful not to vent the mode control cable, when pull out the A/C control assembly. INSTALLATION 1. INSTALL A/C CONTROL ASSEMBLY a. Connect the connector. b. Pass the heater control cables as shown in the illustration. COMPONENTS REMOVAL 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. REMOVE COWL SIDE TRIMS REMOVE FRONT DOOR SCUFF PLATES REMOVE LOWER FINISH PANEL REMOVE LOWER INSERT PANEL REMOVE CENTER CLUSTER FINISH PANEL REMOVE HEATER TO RESISTOR NO.2 DUCT REMOVE LOWER PANEL REMOVE REAR CONSOLE BOX REMOVE SHIFTING HOLE BEZEL REMOVE FINISH LOWER CENTER PANEL 11. DISCONNECT HEATER CONTROL CABLE c. Install the 2 set screws. 2. CONNECT HEATER CONTROL CABLES a. Set Air inlet control lever at “RECIRC” position b. Set Temperature control dial at “MAX. COOL” position c. Set Mode control dial at “DEF” position Zoom d. Adjust air inlet control cable. Set air inlet damper control lever to “RECIRC” position and connect the inner cable to lever pin and clamp the outer cable. HINT: Lock the clamp while lightly pushing the outer cable to the direction shown by arrow in the illustration. Sized for Print Zoom e. Adjust air mix control cable. Set air mix damper control lever to “MAX. COOL” position and connect the inner cable to lever pin and clamp the outer cable. HINT: Lock the clamp while lightly pulling the outer cable to the direction shown by arrow in the illustration. Sized for Print

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1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section 100-02. 2. NOTE: If equipped, the transmission servo heat shield needs to be unclipped from the fluid pan rail and positioned out of the way for fluid pan removal. If equipped, loosen the nut and position the heat shield out of the way. 3. Drain transmission fluid. Remove all the transmission fluid pan screws except for two in the front. Loosen the two front transmission fluid pan screws. Pry the rear of the transmission fluid pan down and allow fluid to drain. After fluid is drained, remove the front two transmission fluid pan screws. 4. Remove the transmission fluid pan. 1. Remove the transmission fluid pan. 2. Remove and discard the transmission fluid pan gasket. 5. Remove and discard the transmission fluid filter. 1. Remove the transmission fluid filter screw. 2. Remove the transmission fluid filter. 6. Unclip main control valve body wire harness. Lift up on wire harness guide and protector and disengage the retaining pins from the solenoid clamps. 7. Disconnect the six solenoid electrical connectors. 1. Disconnect the SSA, SSB, SSC and SSD electrical connectors. 2. Disconnect the torque converter clutch (TCC) solenoid electrical connector. 3. Disconnect the electronic pressure control (EPC) solenoid electrical connector. 8. Remove the manual control valve detent lever spring. 1. Remove the manual control valve detent lever spring screw. 2. Remove the manual control valve detent lever spring. 9. Remove the low/reverse servo. 1. Remove the low/reverse servo cover screws. 2. Remove the low/reverse band servo cover and gasket. Discard the low/reverse servo separator plate cover gasket. 10. Remove the low/reverse band servo piston and rod. 11. CAUTION: Support the main control valve body. Do not remove the two (gold) screws specified. 12. CAUTION: Support the main control valve body. Remove the screws. 13. Remove the main control valve body. Installation 1. Install the special tool into the transmission case. 2. Position the main control valve body, using the two special tools as a guide. 3. NOTE: The main control valve body screws will be tightened in later steps. Loosely install four M6 x 45 mm (1.8 in) screws.

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1. Disconnect the battery ground cable. 2. Remove the center trim panel. 3. Remove the control assembly. 1 Remove the screws. 2 Remove the control assembly. 4. Remove the A/C-heater function selector switch knob. 5. Disconnect the vacuum harness connector. 6. Disconnect the A/C-heater function selector switch connector. 7. Remove the A/C-heater function selector switch. 1 Remove the screw. 2 Remove the A/C-heater function selector switch. 8. Remove the temperature control switch knob. 9. Disconnect the temperature control switch connector. 10. Remove the temperature control switch. 1 Remove the screw. 2 Remove the temperature control switch. 11. Remove the heater blower motor switch knob. 12. Disconnect the heater blower motor switch connector. 13. Remove the heater blower motor switch. 1 Remove the screw. 2 Remove the heater blower motor switch. INSTALLATION 1. Follow the removal procedure in reverse order.

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Inspection and Verification 1. Verify the customer’s concern by operating the climate control system to duplicate the condition. 2. Inspect to determine if one of the following mechanical or electrical concerns apply: Visual Inspection Chart Loose, missing or damaged A/C compressor drive belt. Loose or disconnected A/C clutch. Loose, misrouted or damaged vacuum lines. Broken or leaking vacuum control motora Discharged A/C system. Broken or leaking refrigerant lines. a a A leak in the vacuum control circuit may occur during acceleration (slow leak), may exist at all times (large leak), and may exist only when specific functions are selected (indicating a leak in that portion of the circuit). The vacuum hoses used in the passenger compartment control circuit are constructed from PVC plastic material. The vacuum hoses used in the engine compartment are constructed of Hytrel®. Because of the materials used, never pinch the vacuum hoses off during diagnosis to locate a leak. A wood golf tee can be used as a plug when it is necessary to plug one end of the vacuum hose for leak test purposes. 3. If the inspection reveals obvious concern(s) that can be readily identified, service as required. 4. If equipped with the electronic automatic temperature control system, go to Step 6. 5. If equipped with a manual A/C system, determine the symptom and go to the Symptom Chart. 6. If the concern remains after the inspection, connect the Rotunda New Generation Star (NGS) Tester to the data link connector (DLC) located beneath the instrument panel to carry out the DATA LINK DIAGNOSTICS test. If the NGS responds with NO RESPONSE/NOT EQUIPPED for the electronic automatic temperature control module, GO to Pinpoint Test A. If the DATA LINK DIAGNOSTICS test is passed for the electronic automatic temperature control module, retrieve the continuous DTCs and execute the Self-Test Diagnostics for the electronic automatic temperature control module to retrieve the current DTCs. Mechanical Electrical Open fuses. Blower motor inoperative. A/C compressor inoperative. Circuitry open/shorted. Disconnected electrical connectors. 7. If the self-test is passed and no DTCs are retrieved, go to the Symptom Chart to continue diagnostics. 8. If DTCs are retrieved, go to the Electronic Automatic Temperature Control (EATC) Module Diagnostic Trouble Code (DTC) Index to continue diagnostics. 9. If the electronic automatic temperature control module cannot be accessed by the NGS, GO to Pinpoint Test A. Electronic Automatic Temperature Control Module Self-Test The EATC module self-test will not detect concerns associated with data link messages like engine coolant temperature or vehicle speed signals. A NGS tester must be used to retrieve these concerns. The EATC module self-test will detect concerns in the system control functions and will display hard diagnostic trouble codes (DTCs) in addition to intermittent diagnostic trouble codes for concerns that occur during system operation. The vehicle interior temperature should be between 4-32° (40-90°F) when performing the self-test. If the temperatures are C not within the specified ranges, false in-car temperature sensor DTCs will be displayed. The self-test can be initiated at any time. Normal operation of the system stops when the self-test is activated. To enter the self-test, press the OFF and FLOOR buttons simultaneously and then press the AUTOMATIC button within two seconds. The display will show a pulse tracer going around the center of the display window. The test may run as long as 30 seconds. Record all DTCs displayed. If any DTCs appear during the self-test, follow the diagnostics procedure given under ACTION for each DTC given. If a condition exists but no DTCs appear during the self-test, refer to the Symptom Chart Condition: The EATC System Is Inoperative, Intermittent or Improper Operation. To exit self-test and retain all intermittent DTCs, push the blue (cooler temperature) button. The control will exit self-test, retain all intermittent DTCs and then turn OFF (display blank). To exit self-test and clear all DTCs, press the DEFROST button. The vacuum fluorescent display window will show 888 and all function symbols for one second. Then, the EATC control assembly will turn OFF (display blank) and all DTCs will be cleared. Always exit the self-test before powering the system down (system turned OFF). Intermittent DTCs will be deleted after 80 ignition switch ON cycles after the intermittent condition occurs.

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An optional auxiliary air conditioning and heating system is available. The system is a one-piece unit that is located on the LH side of the vehicle between the side windows and the floorpan, behind the rear wheel well. The driver has primary control of the auxiliary air conditioning and heating system or can transfer control to a rear passenger control panel. All of the auxiliary A/C-heater system components are serviceable from the inside of the vehicle except the lines. Component Locations The auxiliary A/C and heating system has the following features: The auxiliary A/C and heating system is functioning whenever the instrument panel mounted A/C control is in any position except OFF. The auxiliary blower motor recirculates the air inside the vehicle. Outside air is not available to the auxiliary system. Air is cooled and dehumidified by the auxiliary A/C evaporator core only if the instrument panel mounted A/C control is adjusted to a position that requires A/C compressor operation. The temperature blend door and the A/C damper door are controlled by electric actuator motors. Movement of the auxiliary temperature control between COOL and WARM causes a corresponding movement of the temperature blend door to mix air flowing through and around the auxiliary heater core. Movement of the auxiliary mode control between PANEL and FLOOR causes a corresponding movement of the A/C damper door to direct air flow between the panel (headliner) registers and the floor duct. Blower Motor The auxiliary air conditioning system contains a blower motor which is controlled by the heater blower motor switch on the front or rear auxiliary A/C control. Control Assembly The auxiliary A/C system has dual controls for the driver and rear passengers consisting of temperature, blower speed, and mode. The front auxiliary A/C control is mounted in the overhead console or the front floor console. The rear auxiliary A/C control is mounted in a separate overhead console positioned on the roof trim panel or the rear of the front floor console. Front Auxiliary A/C Control