2427587 - L17 CLIMATE CONTROL RECIRCULATION AUTOMATIC MODE NOT WORKING

The recirculation is not closed in automatic mode when there is pollutaion.
Results of the tests
0PRELIMINARY CHECKAll OKProblems metOperation

Check:

  • that the flap works when the recirculation button is pressed
Continue to Step 1Motor not working Continue to Step 2
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Connect the examiner and check for errors at the climate control node.Carry out the recirculation motor test in active diagnosisIf it is not activated, check the recirculation motor wiringContinue to Step 2Faulty wiringRenew the wiring
2CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect the Examiner diagnostic equipment :

  • check that the recirculation flap is working properly in automatic mode by selecting active diagnosis and carrying out the 'pollution sensor test'.
  • If the result is negative, carry out See Test   5040DD  Check on pollution sensor signal
Continue to Step 3Passenger compartment air pollution sensor defectiveReplace sensor
Passenger compartment air pollution sensor defectiveRenew the wiring
3CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the recirculation flap is working properly by carrying out the 'pollution sensor test' again with the Examiner in Active DiagnosisCheck that the fault is no longer present End of diagnosisFault persists Replace the climate control system control unit