| | Test results |
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
|---|
| Check that neither the windscreen wipers nor the windscreen washer is working | Move on to Step 1 | | |
| 1 | WINDSCREEN WIPER ELECTRICAL CIRCUIT CHECK | All OK | Problems encountered | Operation |
|---|
| Check the following, in order:- Windscreen wiper fuse;- Start-up cut-out relay;- Steering column switch unit power supply See E3020 WINDSCREEN WASH/WIPE | Move on to Step 2 | 1. Component defective2. Connections not correct | 1. Replace the defective component (in the case of a fuse, find out what caused it to blow)2. Restore the correct connections |
| 2 | STEERING COLUMN SWITCH UNIT CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the switch unit is working properly: in particular, the internal resistances that produce the intermittent operation of the windscreen wiper. See descriptions 5550 WARNING AND MANOEUVRING INDICATORS | End of diagnosis | Intermittent operation function not working properly. | Replace the steering column switch unit Op. 5550A10 STALK UNIT ASSEMBLY - R+R |
