| | Results of the tests |
| 1 | CHECK ON CORRECT OPERATION OF CLIMATE CONTROL NODE | All OK | Problems encountered | Operation |
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| With the engine started, set the climate control system control unit to the AUTO position, adjust the temperature knob so that it reaches 22 °C, set the fan speed to 6 bars, then press the recirculation button (check that the recirculation warning light comes on). Then check, by feeling, that the air flow changes during the flap opening/closing function. Also locate the grille for the air intake casing in the engine compartment and check the intake of air in switch from recirculation to outside air intake | When the control unit is set to the FULL AUTO function and the outside temperature is below 3°C the air intake flap opens automatically to prevent the windscreen from misting up |
| Move on to Step 2 | The LED with the recirculation symbol does not light up. | Move on to Step 4 |
| The LED with the recirculation symbol lights up, but the function is not activated | Move on to Step 2 |
| 2 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
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| Connect the Examiner diagnostic equipment and check that there are no errors at the air recirculation actuator. | Move on to Step 6 | Errors at the recirculation actuator. | Move on to Step 3 |
| 3 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
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| Keeping the Examiner diagnostic equipment connected, check the operation of the air recirculation through active diagnosis | Move on to Step 6 | Air recirculation actuator not working | Move on to Step 4 |
| 4 | ELECTRICAL CONNECTIONS CHECK | All OK | Problems encountered | Operation |
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| Check whether the electrical wiring connections are loose. Remove the glove compartment and disconnect/reconnect the electrical connection to the actuator. | Move on to Step 5 | Electrical wiring connections loose | Restore the correct wiring connections. See E6020 CONDIZIONATORE |
| Electrical connections not loose (but the LED with the recirculation symbol does not light up) | Replace the climate control nodeOp. 5040D15 CONTROL UNIT WITH AUTOMATIC DUEL ZONE AIR CONDITIONER KNOBS AND BUTTONS R R |
| 5 | RECIRCULATION MOTOR OPERATION CHECK | All OK | Problems encountered | Operation |
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| Then proceed as follows: with the engine running, manually engage the recirculation air intake function with the fan at the maximum speed. If the actuator works and the flap is driven, feel that the type of air flow alters during the movement. Deactivate the function by returning the actuator to the original condition. Identify the air intake casing grille on the vehicle and check by feeling the air intake with your hand in the switch from recirculation to outside air and vice versa. If the result of the check is positive, do not replace the actuator. To check further in case of doubts on the operation of the actuator, it is possible to carry out the check following the methods described in Test 5040DE if the air intake casing is easily accessible,See Test 5040D AIR CONDITIONER CONTROLS | Move on to Step 6 | Incorrect operation of actuator | Replace the actuator Op. 5040D75 AIR CONDITIONER RECIRCULATION FLAP CONTROL MOTOR R R |
| 6 | RECIRCULATION MOTOR FLAP CHECK | All OK | Problems encountered | Operation |
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| Check that the air recirculation motor flap completes its travel without any hinderance. | End of diagnosis | Flap obstructed or damaged. | Remove the air recirculation motor flap impediment or replace the flap, if damaged. |