| | Test results |
| 1 | CHECK EPS COLUMN AND FORK FASTENINGS | All OK | Problems encountered | Operation |
|---|
| Check that the EPS column fastenings to the bodyshell and the for the lower fork bolt are correct. | Move on to Step 2 | Incorrect tightening. | Restore the correct tightenings. |
| 2 | TYRE PRESSURE CHECK | All OK | Problems encountered | Operation |
|---|
| Check the tyre pressure | Move on to Step 3 | Pressure level incorrect. | Make sure tyres are inflated to the correct pressure. |
| 3 | NOISE TYPE CHECK | All OK | Problems encountered | Operation |
|---|
| Check the type of noise over an unmade road. | Move on to Step 4 | 1. The noise is the metallic and/or mechanical type. Noise similar to the reversal of the steering wheel (with the system activated) or a series of multiple bangs when steering.2. The noise is not the metallic and/or mechanical type. | 1. Move on to Step 4.2. Do not adjust the EPS system. |
| 4 | CHECK ON FAULT DETECTION CONDITIONS | All OK | Problems encountered | Operation |
|---|
| Check whether the noise persists even without the driver''s Air Bag. | Move on to Step 5 | The noise does not occur after the driver''s air bag is removed. | Do not repair the EPS system, rather the defective component. |
| 5 | CHECK ON NOISE FROM OTHER COMPONENTS | All OK | Problems encountered | Operation |
|---|
| Check (with the system activated) that the nut for the fork on the steering box pinion and on the lower part of the EPS system are correctly tightened to torque, then make sure that the noise is no longer present by moving the steering wheel briskly. | End of diagnosis | The fault occurs again, especially when the steering wheel is moved briskly. | DO NOT replace the electric steering assembly. Problem with the intermediate shaft. |
