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Old 03-21-2015, 01:33 PM   #3
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Join Date: Jan 2012
Location: Motown
Posts: 7,185
Re: 1998 wiper motor wiring

your going to need a new wiper switch typical of any turn switch mounted wiper switch
google any 90s gm wiper and you'll come up with this same basic solid state wiper diagram for 5 wires
white is keyed power, black is ground, purple is high speed, if all you want is high speed wipers that's easy
you'll need the newer switch to get anything other than high speed all controlled by the switch and the gray wire
and 20 diodes

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