| | Results of the tests |
| 0 | PRELIMINARY CHECK | All OK | Problems met | Operation |
|---|
| Check the washer fluid level is correct. | Continue to Step 2 | Washer fluid level too low. | Continue to Step 1 |
| 1 | CHECKING EXPANSION TANK | All OK | Problems met | Operation |
|---|
| Check the condition of the expansion tank. | Continue to Step 8 | Expansion tank damaged. | Change the expansion tank Op. 5050A10 |
| 2 | PIPES CHECK | All OK | Problems met | Operation |
|---|
| Check the condition of the piping. In particular, check pipes are not blocked or incorrectlly connected. | Continue to Step 3 | Pipes blocked or incorrectly connected. | Restore connections or change the pipes. |
| 3 | CHECKING JETS | All OK | Problems met | Operation |
|---|
| Check the condition of the jets. | Continue to Step 4 | Windscreen washer jets damaged | Change damaged jets Op. 5050B10 |
| Rear window washer jets damaged | Change damaged jets Op. 5050C10 |
| 4 | CHECK ON ELECTRICAL CIRCUIT | All OK | Problems met | Operation |
|---|
| Disconnect the electrical connector on the two-way pump motor side and check for a control signal from the stalk See E3020 WINDSCREEN WASH/WIPE | Continue to Step 7 | No electrical signal. | Continue to Step 5 |
| 5 | ELECTRICAL CIRCUIT CHECK | All OK | Problems met | Operation |
|---|
| Check continuity/insulation of electrical connection between stalk unit and two-way pump motor See E3020 WINDSCREEN WASH/WIPE | Continue to Step 6 | Electrical connection broken or not insulated. | Restore continuity/insulation of electrical connection See E3020 WINDSCREEN WASH/WIPE |
| 6 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check that the fault is no longer present. | End of diagnosis | Fault persists. | Replace the stalk unit Op. 5550A10Search for the fault starting from another symptom' |
| 7 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check that the fault is no longer present. | End of diagnosis | Fault persists. | Change the pump motor Op. 5050B22 Search for the fault starting from another symptom' |
| 8 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check that the fault is no longer present. | End of diagnosis | Fault persists. | Top up the washer fluid level.Search for the fault starting from another symptom' |
