|  |  | Results of the tests | 
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation | 
|---|
|  | Connect
the Examiner diagnostic instrument and check, in the active diagnosis
environment, that the buzzer is working properly | Continue to Step 1 | The buzzer is not working | Replace the Instrument Panel
Node  Op. 5560B11 | 
| 1 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation | 
|---|
|  | Connect
an Examiner and check the door/boot status has been correctly downloaded
while in parameter mode | Continue to Step 4 | Malfunction in acquisition
of door switch status | Continue to Step  2 | 
| Malfunction in acquisition of boot open switch status | Continue to Step  3 | 
| 2 | ELECTRICAL CONNECTIONS CHECK | All OK | Problems met | Operation | 
|---|
|  | Check
the electrical connections between the doors and Body Computer  See   E2510  COURTESY LIGHTS Also check that the door switches are not faulty | Continue to Step 4 | Connections faulty | Restore the correct connections  See   E2510  COURTESY LIGHTS | 
| Front door switch faulty | Replace the door open motor  Op.   7005N21 | 
| Rear door switch faulty | Replace the door open motor  Op.   7010N21 | 
| 3 | ELECTRICAL CONNECTIONS CHECK | All OK | Problems met | Operation | 
|---|
|  | Check
the electrical connections between boot open switch and Body Computer 
 See   E2520  GLOVE COMPARTMENT LIGHT - LUGGAGE COMPARTMENT LIGHT - SUN VISOR LIGHT Also check that the boot open switch is not faulty | Continue to Step 4 | Connections faulty | Restore the correct connections  See   E2520  GLOVE COMPARTMENT LIGHT - LUGGAGE COMPARTMENT LIGHT - SUN VISOR LIGHT | 
| Boot open switch faulty | Replace the boot outer handle  Op.   7015B30 | 
| 4 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation | 
|---|
|  | Connect the Examiner and check on
the body computer node: that there are no errors on the C-CAN line;that there are no errors on the C-CAN line;
 | Continue to Step 5 | Error in the C-CAN line. | Continue following the instructions
for the diagnostic equipment | 
| Error found in speedometer signal. | Continue according to the instructions  See table   K03  SPEEDOMETER NOT WORKING | 
| 5 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation | 
|---|
|  | Keep the Examiner connected and check
the body computer node for: errors in the B-CAN line;errors in the speedometer signal.
 | Continue to Step 6 | Error found in the B-CAN
line. | Continue
following the instructions for the diagnostic equipment | 
| Error found in speedometer signal. | Continue according to the instructions  See table   K03  SPEEDOMETER NOT WORKING | 
| 6 | ELECTRICAL CONNECTIONS CHECK | All OK | Problems met | Operation | 
|---|
|  | Check
the electrical connections between the instrument panel and Body
Computer  See   E4010  INSTRUMENT PANEL | Continue to Step 7 | Connections faulty | Restore the correct connections  See   E4010  INSTRUMENT PANEL | 
| 7 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation | 
|---|
|  | Check
that the fault is no longer present. | End of diagnosis | Fault persists | Replace the Body Computer  Op.   5505A32 |