| | Test results |
| 1 | BULB CHECK | All OK | Problems encountered | Operation |
|---|
| Check efficiency/condition of left or right bulb | Move on to Step 2 | Bulb defective | Replace the bulb Op. 5550D26 REVERSING LIGHT BULB - R+R |
| 2 | ELECTRICAL SYSTEM CHECK | All OK | Problems encountered | Operation |
|---|
| Check the continuity of the wiring from the dashboard junction unit to the left and right reversing lights See See E2022 REVERSING LIGHTS | Move on to Step 3 | Wiring with open circuit | Restore wiring See See E2022 REVERSING LIGHTS |
| 3 | DASHBOARD JUNCTION UNIT CHECK | All OK | Problems encountered | Operation |
|---|
| Check the continuity of the circuit inside the dashboard control unit | Move on to Step 4 | Circuit defective | Replace the dashboard junction unit Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R. |
| 4 | CORRECT OPERATION CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the fault is no longer present | | Fault persists | Replace lamp Op. 5550D24 REVERSING LIGHT - R+RSearch for the fault starting from another symptom |