| STEP | OPERATIONS TO BE CARRIED OUT | TEST RESULTS | 
|---|
| 0 | PRELIMINARY CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check that the operation of the electric rear windows has not been inhibited by the driver's door node (ideograms on the rear buttons off) | Move on to Step | Operation of the rear electric windows inhibited | Activate the operation of the electric rear windows via the driver's door node | 
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Using the diagnostic equipment (Examiner or other instruments) connected, check the following information at the CAN network: no control unit not activated;that there are no faulty control units;no control unit with faulty CAN line;
 | Move on to Step | 1. Presence of faults | 1. Continue following the instructions for the diagnostic equipment | 
| 2. Luggage compartment node not activated | Move on to Step | 
| 2 | ELECTRICAL SYSTEM CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check: the connection between the luggage compartment junction unit and the luggage compartment node
 | Move on to Step | Connections interrupted | Restore the connections (Wiring Diagram    )  E3051  ELECTRIC REAR WINDOWS | 
| 3 | CHECK USING DIAGNOSTIC EQUIPMENT | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Connect the diagnostic equipment (Examiner or Examiner plus) to the diagnostic socket: that there are no errors in the luggage compartment node control unit
 | Move on to Step | Presence of errors in the luggage compartment node control unit | Continue following the instructions in the diagnostic table | 
| 4 | SERVICES RELAY ELECTRICAL CIRCUIT CHECK (POWER CIRCUIT) | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check the continuity of the connections between the services discharge relay and the luggage compartment node (Wiring Diagram    )  E3051  ELECTRIC REAR WINDOWS | Move on to Step | Connections interrupted | Restore the connections (Wiring Diagram    )  E3051  ELECTRIC REAR WINDOWS | 
| 5 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION | 
|---|
|  | Check that the fault is no longer present |  | Fault persists | Replace the luggage compartment node |