| | Test results |
| 0 | PRELIMINARY CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the level of the detergent fluid in the expansion tank is correct, also make sure that it is not leaking | Move on to Step 1 | 1. Insufficient detergent fluid level2. Expansion tank damaged | 1. Top up the detergent to the correct level.2. Replace the expansion tank Op. 5050A10 WINDSCREEN WASHER FLUID RESERVOIR (IN ENGINE COMPARTMENT) - R+R |
| 1 | PIPE CHECK | All OK | Problems encountered | Operation |
|---|
| Check the condition of the pipes, in particular that they are not obstructed or incorrectly connected | Move on to Step 2 | Pipes obstructed or incorrectly connected | Restore connections correctly or replace pipes |
| 2 | JETS CHECK | All OK | Problems encountered | Operation |
|---|
| Check the condition of the jets | Move on to Step 3 | 1. Windscreen washer jets damaged | 1. Replace the damaged jets Op. 5050B10 FRONT WINDSCREEN WASHER JETS - R+R CLEAN AND/OR POSITION |
| 3 | ELECTRICAL CIRCUIT CHECK | All OK | Problems encountered | Operation |
|---|
| Disconnect the electrical connector, two-way electric pump motor side, and check for a control signal coming from the steering column switch unit See E3020 WINDSCREEN WASH/WIPE | Move on to Step 5 | No electrical signal | Move on to Step 4 |
| 4 | ELECTRICAL CIRCUIT CHECK | All OK | Problems encountered | Operation |
|---|
| Check the continuity/insulation of the electrical connection between the steering column switch unit and the two-way electric pump motor See E3020 WINDSCREEN WASH/WIPE | Move on to Step 5 | Connection broken or not insulated | Restore the continuity/insulation of the electrical connection See E3020 WINDSCREEN WASH/WIPE |
| 5 | WINDSCREEN/REARSCREEN ELECTRIC WASHER PUMP CHECK | All OK | Problems encountered | Operation |
|---|
| Check the operation of the windscreen/rearscreen washer electric pump | It is the actual pump that carries out the screen washer function but operated in the reverse direction |
| Move on to Step 4 | Pump faulty. | Replace the screen washer electric pump Op. 5050B20 WINDSCREEN WASHER ELECTRICAL PUMP - R+R |
| 6 | STEERING COLUMN SWITCH UNIT CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the switch unit is working properly: in particular, the rear wiper switch See descriptions 5550 WARNING AND MANOEUVRING INDICATORS | End of diagnosis | Switch unit not working properly | Replace the steering column switch unit. Op. 5550A10 STALK UNIT ASSEMBLY - R+R |