| | Test results |
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Connect an Examiner tester and ensure that the following errors are not present in the Body Computer node:- error B1010;- error B1011;- error B1026;- error B1028 | Move on to Step 2 | 1. Presence of error B10102. Presence of error B10113. Presence of error B10264. Presence of error B1028 | 1. Replace brake light switch.2. Move on to Step 33. Move on to Step 34. Move on to Step 2 |
| 2 | BRAKE LIGHT OPERATION CHECK. | All OK | Problems encountered | Operation |
|---|
| Keep the diagnostic tester connected and check that the brake lights are operating correctly in active diagnosis mode | Move on to Step 3 | 1. Bulbs operating2. Bulbs not operating | 1. Replace Body Computer Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.2. Replace the bulb or the associated wiring |
| 3 | ELECTRICAL SYSTEM CHECK | All OK | Problems encountered | Operation |
|---|
| Check the continuity of the bulb wiring See E2021 BRAKE LIGHTS | Move on to Step 4 | Wiring broken | Restore correct wiring |
| 4 | CONTROL SWITCH CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the brake switch is working properly See Test 5550DA BRAKE PEDAL SWITCH OPERATION CHECK | Move on to Step 5 | Switch broken | Replace brake light switch faulty |
| 5 | BODY COMPUTER CONNECTION CHECK | All OK | Problems encountered | Operation |
|---|
| Check for deformed terminals or connections not present on the Body Computer | End of diagnosis | Missing connections/pins bent | Renew the correct connections |
