|  |  | Results of the tests | 
| 1 | ELECTRIC WINDOW SWITCHES CHECK | All OK | Problems met | Operation | 
|---|
|  | Check
the operation of the electric front window switched | Continue to Step 
                              2 | Switch damaged | Replace the electric window
switch 
                               Op.   7005M10 | 
| 2 | SERVICES CONTROL UNIT CHECK | All OK | Problems met | Operation | 
|---|
|  | Check
that the services control unit is working properly, in particular
the electric front windows control function 
                               see DESCRIPTION AND OPERATION: 5505 ELECTRICAL CIRCUIT FOR INSTRUMENTS/INDICATORS | Continue to Step 
                              3 | Control unit not working | Replace the services control
unit 
                               Op.   5505A18 | 
| 3 | CHECK CORRECT OPERATION | All OK | Problems met | Operation | 
|---|
|  | Check
that the fault is no longer present | End of diagnosis | Fault persists | Search for the
fault starting from another symptom' |