| | Results of the tests |
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|
| Carry
out a preliminary check on the fluid level in the reservoir; also
make sure that it is not leaking. | Continue to Step 1 | Level too low | Top up level |
| Reservoir damaged | Reservoir damaged Op. 5050A10 |
| 1 | PIPES AND JETS CHECK | All OK | Problems met | Operation |
|---|
| Check
that there are no obstructions or incorrect connections for the
rearscreen washer pipes.Check the condition of the jets. | Continue to Step 2 | Pipes obstructed or damaged | Renew or replace the pipes |
| Jets obstructed or damaged | Renew or replace the jets Op. 5050C10 |
| 2 | ELECTRIC REARSCREEN WASHER PUMP
SUPPLY | All
OK | Problems
met | Operation |
|---|
| Check
the connection between the steering column switch unit and the electric
rearscreen washer pump. See E3020 WINDSCREEN WASH/WIPE | Continue to Step 3 | Connection broken | Restore the connections |
| 3 | ELECTRIC REARSCREEN WASHER PUMP
CHECK | All
OK | Problems
met | Operation |
|---|
| Check
the operation of the electric rearscreen washer pump | it involves the actual pump which
carries out the washer function, but in reverse |
| Continue to Step 4 | Electric pump faulty | Replace the electric rearscreen
washer pump Op. 5050B22 |
| 4 | STEERING COLUMN SWITCH UNIT CHECK | All OK | Problems met | Operation |
|---|
| Check
that the steering column switch unit is working properly: in particular,
the rearscreen washer switch: see DESCRIPTION AND OPERATION: 5050 SCREEN WASHERS AND HEADLAMP WASH/WIPE | Continue to Step 5 | Stalk unit not working
properly | Replace
the steering column switch unit Op. 5550A12 |
| 5 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | Fault persists | Search for the
fault starting from another symptom' |