Kia Optima Hybrid Owner's Manual Quiz
Heating, Ventilation, and Air Conditioning

Temperature Control Actuator Repair Procedures

In this manual: Heating, Ventilation, and Air Conditioning
General Information — 4Engine Mechanical System — 50Engine Electrical System — 20Emission Control System — 30Engine Control System/Fuel System — 84Automatic Transmission — 98Drive Shaft and Axle — 15Suspension System — 36Steering — 12Restraints — 50Brake System — 38Body (Interior and Exterior) — 54Body Electrical System — 233Heating, Ventilation, and Air Conditioning — 57
24steps
~144min
4/5difficulty
Done 0 of 24

Inspection

  1. Ignition switch OFF
  2. Disconnect the temperature control actuator connector.
  3. Make sure the temperature control actuator operates in the hot position when 12 V is applied to terminal 3 and terminal 7 is grounded. Make sure the temperature control actuator operates in the cold position when the polarity is reversed. [Drive the vehicle]
    1. -
    2. -
    3. Class position
    4. Sensor ground    		 5. Feedback signal
    6. 5 V (DC)
    7. Hot position
  4. Check the voltage between terminals 4 and 5 (driver). Specification
    Door Position Voltage (4-5) Fault Detection
    Max. Cool 0.3 ± 0.15 V Low voltage: 0.1 V or less
    Max. Heat 4.7 ± 0.15 V High voltage: 4.9 V or more

    [Passenger]
    1. -
    2. -
    3. Class position
    4. Sensor ground    		 5. Feedback signal
    6. 5 V (DC)
    7. Hot position
  5. Check the voltage between terminals 4 and 5 (passenger). Specification
    Door Position Voltage (4-5) Fault Detection
    Max. Cool 0.3 ± 0.15 V Low voltage: 0.1 V or less
    Max. Heat 4.7 ± 0.15 V High voltage: 4.9 V or more

    It transmits the current position of the actuator to the control unit.
  6. If the measured voltage does not conform to the specification, replace the temperature control actuator with a known good one and check that the operation is correct.
  7. If the problem is resolved, replace the temperature control actuator.

Replacement

  1. Disconnect the negative (-) battery terminal.
  2. Using a screwdriver, remove the side cover (A).
  3. Loosen the fastening screws and remove the lower cover of the emergency panel (A).
  4. Disconnect the connector (A) and remove the lower air bag cover.
  5. Remove the shower duct (A).
  6. Loosen the mounting bolts and remove the BCM. (Refer to BE group - "BCM")
  7. Disconnect the temperature control actuator connector (A).
  8. Loosen the mounting screw and remove the temperature control actuator (B).
  9. Using a screwdriver, remove the side cover (A).
  10. Remove the lower cover of the main airbag (A).
  11. Disconnect the damper (B) and glove box lift (C) from the glove box (A).
  12. Disconnect the pin (A), then remove the glove box (B).
  13. Loosen the fastening screw and bolts and remove the glove box housing (A).
  14. Remove the shower duct (A).
  15. Disconnect the temperature control actuator connector (A).
  16. Loosen the mounting screw and remove the temperature control actuator (B).
  17. Installation is the reverse of removal.

Test yourself

A quick Kia Optima Hybrid Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.