Ignition "OFF".
Disconnect the connector of mode control actuator.
Verify that the mode control actuator operates to the defrost mode when connecting 12V to the terminal 1 and grounding terminal 2.
Verify that the mode control actuator operates to the vent mode when connecting in the reverse.
Check the voltage between terminals 3 and 4.
Door position | Voltage (4-4) | Error detecting |
Vent | 0.3 ± 0.15V | Low voltage :0.1V or less |
Defrost | 4.7 ± 0.15V | High voltage :4.9V or more |