|  |  | Results of the tests | 
| 1 | CHECK ON DOOR MIRROR EARTH | All OK | Problems met | Operation | 
|---|
|  | Check
that the door mirrors are connected to earth correctly See   E3030  HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING | Continue to Step 2 | Connection not correct | Restore connection | 
| 2 | CHECK ON HEATING ELEMENT | All OK | Problems met | Operation | 
|---|
|  | Check
the continuity of the mirror demisting heating element | Continue to Step 3 | Heating element broken | Restore the resistance  Op. 7005R25 | 
| 3 | SUPPLY CHECK | All OK | Problems met | Operation | 
|---|
|  | Check
that the door mirrors are supplied correctly: there must be the
battery voltage at the supply cable. | Continue to Step 4 | No supply | See table   J20  REARSCREEN AND DOOR MIRROR DEFROSTING NOT WORKING | 
| 4 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation | 
|---|
|  | Check
that the fault is no longer present |  | Fault persists | Search for the fault starting from another symptom' |