how to change climate control on 2000 galant
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Filed Under (Ford) by admin on 28-03-2011
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.
Filed Under (Ford) by admin on 21-03-2011
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
Filed Under (Jaguar) by admin on 28-11-2010
CONDITION SUMMARY: Situation: The outlet temperature of the climate control system may not be able to be lowered from either the driver or passenger face and side vents; there may also be an extreme difference between the driver and passenger sides. This issue may be caused by a fault within the Dual Coolant Control Valve (DCCV) or the Dual Automatic Temperature Control (DATC) or an electrical circuit fault. Action: In the event of a customer concern of the above, refer to the Diagnostic Procedure outlined below to assist in determining if the fault is electrical or mechanical. DIAGNOSTIC PROCEDURE 1. Verify A/C compressor operation, refrigerant charge level, and system powers and grounds. 2. Start engine. 3. Using the Dual Automatic Temperature Control (DATC), select: ‘HIGH’ temperature x ‘HIGH’ fan speed x x ‘RECIRC’ and ‘PANEL’ modes 4. Allow vehicle to sit for five minutes. 5. Using the DATC, select: x ‘LOW’ temperature 6. Allow vehicle to sit for five minutes. 7. Using a suitable temperature gauge, record the outlet temperature from both the driver and passenger air distribution vents. Recorded temperatures should be 7qC (45qF). 8. If the recorded temperatures are within 6qC (10qF? of each other, the climate control system is operating normally and no additional diagnosis is necessary. 9. If either of the recorded temperatures are greater than 45qF or the difference between the recorded temperatures is greater than 6qC (10qF?, continue the Diagnostic Procedure. 10. Shut engine off.
Filed Under (Audi) by admin on 19-06-2010
5.- There are at least 5 reasons the compressor clutch will shut-off and not register a DTC: – A/C system is manually turned off. – Ambient temperature too low. – Engine overheat signal from the 4 terminal multi-function temperature sensor. – Load signal from the engine control unit (shut-off for up to 12 seconds). – Kickdown signal from TCM (shut-off for up to 12 seconds). DIAGNOSIS PROCEDURE 1. – Print DTC (additionally, read control head diagnostic display, channel 1, on cars with automatic climate control), then erase DTC. 2. – Check control head coding on cars with automatic climate control. Check compressor clutch control module coding level on cars with manual A/C.
Filed Under (Mitsubishi) by admin on 19-12-2010
1 Disconnect the negative battery ter- minal to prevent an accidental short circuit. 2 Unclip the radio trim panel including the climate controls and radio con- trols. Unplug and remove the panel. (Figure A) 3 Remove (4) Phillips screws securing radio chassis to sub dash. Unplug and remove the chassis. (Figure B) 4 Remove (4) Phillips screws securing the climate controls to the radio panel. Remove the climate controls and retain the screws and the climate controls for reinstallation during kit assembly. (Figure C)