2006 hyundia sonata temperature control actuator


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1999 Ford Expedition Climate Control System DIAGNOSIS AND TESTING

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Filed Under (Ford) by admin on 28-03-2011

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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.

1991 Chevrolet Cavalier/ Z24 Heater Control Valve: Heater – Low Output

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Filed Under (Chevrolet) by admin on 10-09-2010

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On customer comments of low heater output on 1989-91 J cars, before replacing a suspected defective engine cooling thermostat, proper diagnosis of the condition must be performed to avoid the possibility of a repeat repair. Follow “Diagnosis” as shown in Section 1A/1B of the appropriate Service Manual. After completing the diagnosis, use the following as a guide to the next corrective step: ^ If the diagnosis indicates a defective thermostat, refer to Section 6C for replacement. ^ If the diagnosis indicates a defective temperature control cable, refer to Section 1A/1B for replacement. ^ If the diagnosis indicates the temperature control cable is no longer “snapped” into its retainer, refer to “Temperature Control Cable Repair” in the 1991 Service Manual, Sections 1A/1B. ^ If the diagnosis indicates that the temperature control cable is out of adjustment, refer to the following procedure to repair. TEMPERATURE CONTROL CABLE ADJUSTMENT PROCEDURE Condition: Condition: Cause: Correction For Number: 1. “Spring back” off full “hot” temperature control position (or not attaining full “cold” temperature door position). 2. “Spring back” off full “cold” temperature control position (or not attaining full “hot” temperature door position). The temperature control cable “clip” needs adjustment. Refer to the illustration for correct gripping of the “clip” during adjustment. 1. Grip “clip” at module end of cable while pulling temperature control lever to “hot” position.

2006 HYUNDAI AZERA / SONATA AMBIENT TEMPERATURE SENSOR REPLACEMENT

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Filed Under (Hyundai) by admin on 16-03-2011

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DESCRIPTION: On some vehicles the ambient temperature displayed on the climate controller may differ from the actual outside temperature by more than 5-10oF. An updated ambient temperature sensor is available to improve this condition. This TSB provides the procedure to install the updated ambient temperature sensor located in front of the radiator/condenser. • Model / Affected vehicle production date range: • Azera (TG): Produced Job #1 – January 8, 2006 • Sonata (NF): Produced Job #1 – January 8, 2006 REPLACEMENT PROCEDURE: 1. Unfasten the ambient temperature sensor mounting bolt. 2. Remove the ambient temperature sensor by disconnecting the wiring connector. 3. Connect the wiring connector to the new sensor. 4. Tighten the ambient temperature sensor mounting bolt. 5. Reset the A/C control head after ambient temperature sensor replacement. • Azera – Remove for 15 seconds the Power Connector Fuse (30 amp) from the passenger compartment junction block and replace. • Sonata – Remove for 15 seconds the Power Connector 2 Fuse (15 amp) from the passenger compartment junction block and replace.

2008-2009 Ford F-Super Duty (Dual Automatic Temperature Control) LARGE TEMPERATURE DIFFERENCES

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Filed Under (Ford) by admin on 26-01-2011

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Some 2008-2009 F-Super Duty vehicles with a build date before 11/06/08, and equipped with DATC (Dual Automatic Temperature Control) may exhibit a side-to-side temperature difference greater than 15 degrees Fahrenheit (8.3 degrees Celsius). A temperature difference of less than 15 degrees Fahrenheit (8.3 degrees Celsius) would be considered normal and no repair attempt should be made. Also, it is not necessary to replace the EATC control head or the HVAC. If equipped with manual climate control, vehicles may exhibit periods where the cabin temperature cannot be maintained with the control knob. Some customers may also complain the heat cannot be reduced without rotating the control knob well into the Cool/Blue range. ACTION Follow the Service Procedure steps to correct the condition. SERVICE PROCEDURE Check Actuator Activity: DATC systems may be monitored with the IDS PID ($9910 and $9911 ). Manual A/C systems may be observed through the right side of the instrument panel with the glove compartment door positioned downward. Erratic PID activity or an actuator that appears to be erratically hunting for correct position during the condition should be replaced. Refer to Workshop Manual, Section 412-01, for removal and installation details. The ignition key must be off when replacing the actuator, energizing the actuator before installation on the HVAC case will cause the part to become mis-positioned and correct orientation will be lost. Incorrect actuator operation may result.

2003 Jaguar S-Type Unable to Reduce Climate Control Outlet Temperature – Diagnostic Procedure

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Filed Under (Jaguar) by admin on 25-10-2010

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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. 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 ^ ‘HIGH’ fan speed ^ ‘RECIRC’ and ‘PANEL’ modes 4. Allow vehicle to sit for five minutes. 5. Using the DATC, select: ^ ‘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 7°C (45°F). 8. If the recorded temperatures are within 6°C (10°F) 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 45°F or the difference between the recorded temperatures is greater than 6°C (10°F), continue the Diagnostic Procedure. 10. Shut engine off. ELECTRICAL TEST