323001954 - 5040DE RECIRCULATION ACTUATORS OPERATION CHECK (Automatic air conditioning)

This type of actuator works by reversing the power supply polarity of the motor. Therefore, if it is supplied in one way it turns in one direction and to make it rotate in the other direction the polarity must be reversed.

Disconnect the electrical connector for the recirculation actuator    See N082 OUTSIDE / RECIRCULATION AIR INTAKE FLAP ACTUATOR and supply it directly with a 12 V battery, connecting the positive battery pole to pin 5 and the negative one to pin 6. Check that the actuator turns with the supply connected in this way. If this is not the case, reverse the polarity at pins 5 and 6 and check that the actuator now turns in one direction. Place the actuator in the end of travel position, then reverse the polarity and place it in the opposite end of travel position. Repeat this test at least twice checking that the actuator travels in both directions without problems. If there are problems, check that they are not due to the presence of mechanical blockages or interference. If this is the case, eliminate them and repeat the test.