| | Test results |
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Connect the diagnostic equipment to the diagnostic socket and check for the presence of the following errors at the Body Computer Node:- error B1007;- error B1008. | Move on to Step 2 | 1. Presence of error B10072. Presence of error B1008 | 1. Restore the correct connection or replace the bulbs2. Restore the correct connection |
| 2 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|
| Keeping the diagnostic equipment connected, check in active diagnosis that the direction indicators are working properly | Move on to Step 4 | Direction indicators not working | Move on to Step 3 |
| 3 | BODY COMPUTER CONNECTIONS CHECK | All OK | Problems encountered | Operation |
|---|
| Check for distorted terminals or missing connections in the Body Computer | Move on to Step 4 | Missing connections / bent pins | Renew the correct connections |
| 4 | ELECTRICAL SYSTEM CHECK | All OK | Problems encountered | Operation |
|---|
| Check the continuity of the wiring between the steering column switch unit and the Body Computer Node See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS | Move on to Step 5 | Wiring broken | Restore the correct connections See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS |
| 5 | STEERING COLUMN SWITCH UNIT OPERATION CHECK | All OK | Problems encountered | Operation |
|---|
| Check the continuity of the connections inside the steering column switch unit in the left or right direction indicators position See E2020 DIRECTION INDICATORS / HAZARD WARNING LIGHTS | Move on to Step 6 | Steering column switch unit faulty | Replace the steering column switch unit Op. 5550A10 STALK UNIT ASSEMBLY - R+R |
| 6 | CHECK ON CORRECT OPERATION | All OK | Problems encountered | Operation |
|---|
| Check that the fault is no longer present | End of diagnosis | Fault persists | Replace Body Computer Op. 5505A32 BODY COMPUTER - R.R |
