|  |  | Results of the tests | 
| 1 | CHECKING  WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation | 
|---|
|  | Connect
the Examiner  to the body computer node and check that the alarm
system configuration has been correctly programmed while in parameter mode. | Continue to Step 2 | Volumetric alarm control
unit absent. | Check car compliance | 
| 2 | CHECKING  WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation | 
|---|
|  | Keep
the Examiner connected and check for errors in the volumetric alarm
control unit. | Continue to Step 4 | Volumetric alarm control
unit error | Continue to Step  3 | 
| A-Bus serial line not working. | Restore A-Bus serial line continuity/insulation  See   E7015  ALARM | 
| 3 | CHECKING  WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation | 
|---|
|  | Keep
the Examiner connected and check for errors in the volumetric alarm
control unit. | Continue to Step 4 | Malfunction in the volumetric alarm
control unit. | Change the volumetric alarm control unit. | 
| 4 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation | 
|---|
|  | Check
that the fault is no longer present | End of diagnosis | Fault persists | Change the body computer
node  Op. 5505A32Search for the fault starting
from another symptom' |