Checking the technical condition
1. Turn off the ignition.
2. Disconnect the temperature control actuator connector.
3. Verify that the temperature control actuator moves to the hot air position when 12V is applied to pin 3 and connected to «weight» output 4. Verify that when the power connection is reversed, the temperature control actuator moves the damper to the maximum cooling position.
1, 2, 3. Position «hot air»
4. Position «cold air»
5. «Weight» sensor
6. Feedback signal
7.5V (Vcc)
Note: Specifications:
5. Measure the voltage between pins 6 and 7 (passenger side).
Note: Specifications:
* Transmits information to the controls about the current position of the actuator.
6. If the measured voltage is not within specifications, substitute a known-good temperature control actuator and perform a function check.
7. If the problem is corrected, replace the temperature control actuator.