2892520 - E3020 WINDSCREEN WASH/WIPE - Functional description
Functional description
The windscreen wiper stalk of the stalk unit H5 selects the various operating modes of the windscreen wash/wipe. The stalk unit H5 is supplied at pin 3 of connector D from the ignition-operated line (INT/A) of the relay R1 protected by the fuse F14: both are contained in the junction unit B1. The supply for the relay R1 comes from the direct line of the maxifuse J/B1 of B5 , whilst the coil is supplied by the line (INT/A).Depending on the pre-selected function, the stalk unit H5 (connector A) sends the following control signals to the internal electronic device to the windscreen wiper motor N15:
- from pin 2 for continuous fast operation: the signal reaches the motor directly;
- from pins 3, 4 for continuous slow and medium-fast operation: the signal arrives from the intermittent device and is then sent to the motor