Inspection
1.

Ignition "OFF"

2.

Disconnect the connector of temperature control actuator.

3.

Verify that the temperature control actuator operates to the hot position when connecting 12V to the terminal 3 and grounding terminal 7.

Verify that the temperature control actuator operates to the cool position when connecting in the reverse.

[Drive]

1. -

2. -

3. Cool position

4. Sensor ground

5. Feedback signal

6. 5V (Vcc)

7. Hot position

4.

Check the voltage between terminals 4 and 5 (Drive).

Specification

Door position

Voltage(4-5)

Error detecting

Max. cooling

0.3 ± 0.15V

Low voltage :0.1V or less

Max. heating

4.7 ± 0.15V

High voltage :4.9V or more

[Passenger]

1. -

2. -

3. Cool position

4. Sensor ground

5. Feedback signal

6. 5V (Vcc)

7. Hot position

5.

Check the voltage between terminals 4 and 5 (Passenger).

Specification

Door position

Voltage(4-5)

Error detecting

Max. cooling

0.3 ± 0.15V

Low voltage :0.1V or less

Max. heating

4.7 ± 0.15V

High voltage :4.9V or more

It will feedback current position of actuator to controls.

6.

If the measured voltage is not specification, substitute with a known-good temperature control actuator and check for proper operation.

7.

If the problem is corrected, replace the temperature control actuator.

Яндекс.Метрика