The switch can switch on power, or complete a ground, as it is doing in the wiper circuit. Wiper motor gets power at all times. On our series motors, there are 3 possible combinations, plus washer operation. For you techies, here are the combinations:
Park and off = lt blue and black connedted, (not grounded0
low speed = lt blue and black grounded
high speed = lt blue grounded
washer = dark blue grounded
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Nevada City, CA
Everett, Washington
57 3/4 rat, 235, 3spd
66 C-10 Panel, SWB. 350 from '68, 200R4 tranny, 3.07 rear ratio, restoring
68 C10 LWB 350 4spd, 4.56 rear dump runner
82 Camaro, 305, THM-200-R4
84 Monte Carlo 305 TH350, land tuna
85 Tercel SW, snow runner
DISGRACED OUTLAW MEMBER OF THE DRUM BRAKE CLUB
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