Page 325 - 05. Subyek Teknik Mesin - Automobile Mechanical and Electrical Systems Automotive Technology Vehicle Maintenance and Repair (Vehicle Maintenance Repr Nv2) by Tom Denton
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Electrical systems 307
Figure 3.104 Washer motors. (Source: MadeInChina.com)
Ignition controlled Limit switch
relay
M
Ignition
switch
Driver’s
switch
Delay unit
Off
intermittent
slow
fast
Figure 3.105 Wiper circuit
such that when the washers are operated, the wipers start automatically and will
continue, for several more sweeps, after the washers have stopped.
Figure 3.105 shows a circuit for fast, slow and intermittent wiper control. The
switches are shown in the off position and the motor is stopped and in its park
position. Note that the two main brushes of the motor are connected together
via the limit switch, delay unit contacts and the wiper switch. This causes
regenerative braking because of the current, generated by the motor due to
