184002000 - E3020 WINDSCREEN WASH/WIPE - FUNCTIONAL DESCRIPTION
Operational description
The electronic device inside the steering column switch unit H5 and the controls on the right lever receive a power supply at pin 11 of connector A from the ignition-controlled line (INT/A) of relay T12 protected by fuse F43, both housed in the junction unit under the dashboard B2.According to the function selected, stalk unit H5 (connector A) sends the following control signals to the wiper motor N15:
- from pin 8 for fast operation;
- from pin 9 for slow and/or intermittent operation,
- pin 6, on the other hand, receives the earth signal coming from the motor end of travel cam which stops operation. The windscreen wiper motor N15 is then earthed.