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Alfa Romeo GT Factory Service Manual (2003-2010)22 · Fault diagnosis
22 · Diagnostics

Climate control recirculation automatic mode not working

Make
Alfa Romeo
Model
GT Factory Service Manual
Year
2003–2010
Section
Climate control › Climate control recirculation automatic mode not working
Fault diagnosisClimate control recirculation automatic mode not working

CLIMATE CONTROL RECIRCULATION AUTOMATIC MODE NOT WORKING

The recirculation is not closed in automatic mode when there is pollution.

Results of the tests
0PRELIMINARY CHECKAll OKProblems metOperation
Check that the flap works when the recirculation button is pressedContinue to Step 1Motor not workingContinue to Step 2
1CHECK 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 diagnosis

If it is not activated, check the recirculation motor wiring See

See E6020 AIR CONDITIONING

Continue to Step 2Faulty wiring

Renew the wiring See

See E6020 AIR CONDITIONING

2CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect the Examiner Plus or Smart diagnostic equipment and 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 the

Continue to Step 3Passenger compartment air pollution sensor defective

Replace sensor Op.

Op. 5010D72 AIR QUALITY SENSOR - R R FOLLOWING CIRCUIT CHECK

Pollution sensor wiring broken

Renew the wiring See

See E6020 AIR CONDITIONING

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 Diagnosis.

Check that the fault is no longer present.

End of diagnosisFault persists

Replace the climate control system control unit Op.

Op. 5040D15 CONTROL UNIT WITH AUTOMATIC DUEL ZONE AIR CONDITIONER KNOBS AND BUTTONS R R

Parts & tools for this job For 2003 Alfa Romeo GT

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