|  |  | Results of the tests | 
| 1 | RECIRCULATION MOTOR OPERATION CHECK | All OK | Problems met | Operation | 
|---|
|  | Check
that the recirculation motor is working properly (with the ignition
ON and the climate control OFF, operate the button) | Continue to Step 2 | Defective air recirculation motor | Continue to Step  2 | 
| 2 | RECIRCULATION SYSTEM CHECK | All OK | Problems met | Operation | 
|---|
|  | Connect
the Examiner and carry out the active diagnosis of the recirculation
function | Continue to Step 3 | Error on CAN  line | Restore the connections
between the Body Computer and the climate control control unit:
wiring diagram  See   E6020  AIR CONDITIONING | 
| Recirculation motor error | Continue, following the instructions for the diagnostic
equipment | 
| 3 | CORRECT OPERATION CHECK | All OK | Problems met | Operation | 
|---|
|  | With
the ignition ON and the climate control ON, operate the windscreen
washer control and check whether the recirculation is activated | Continue to Step 4 | Recirculation not activated | Restore the connections
between the Body Computer and the steering column switch unit: wiring
diagram  See   E3022  HEADLAMP WASHER | 
| 4 | CORRECT OPERATION CHECK | All OK | Problems met | Operation | 
|---|
|  | Check
that the fault is no longer present |  | Fault persists | Search for the fault starting from another symptom' |