SAFARI

44 ELECTRICALS 17D. FRONT WIPER CONTROLLER Fig. 47 Function It generates the variable time delay during the Intermittent wipe operation of the wipers on the vehicle. Location Behind glove box on fire wall. Connection details Performance check l When the intermittent input (Ter. D) goes high, Ter. A should get connected to Ter. B for one wipe cycle (The unit assumes the wipe cycle is completed when Ter. C goes to GND from VCC level). Then for time 't' seconds (the time should vary from 2 to 15 second with the resister R varying from 0 to 64 K) Ter. A and B should be disconnected. Again Ter. A and B get connected for one wipe cycle. This cycle continuous until Ter. D is high. l When wash input (J) becomes active output Ter. A should get connected to terminal B after 0.7 sec. and when Ter. J goes low Ter. A get disconnect from Ter. B after 2 sec. The wash should have higher priority than the intermittent signal. l When the Ter. H is low the wash function should be ignored. Ter. Name Ter. Type Description Active Level Condition H Input Water level sensor GND Water level low J Input Combi switch - wash VCC Sw. operated D Input Combi switch - intermittent VCC Sw. operated C Input Wiper motor park Sw. Com. VCC/GND Wiper moving/Wiper park B Supply VCC I/G position E Ground GND Permanent A Output Park to combi switch VCC Fig. 47 l l l l l l l l A D R + VE 12 V B E H C J WIPER CONTROLLER