Ignition "OFF"
Disconnect the connector of temperature control actuator.
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.
1. - 2. - 3. Hot position 4. Sensor ground | 5. Feedback signal 6. 5V (Vcc) 7. Cool position |
Check the voltage between terminals 4 and 5.
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.
If the measured voltage is not specification, substitute with a known-good temperature control actuator and check for proper operation.
If the problem is corrected, replace the temperature control actuator.
