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#1 |
Registered User
Join Date: Feb 2008
Location: Surprise, Ariz.
Posts: 186
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hi guys and girls. i need help with wiring the 2 speed switch to the wiper motor. my wiper switch harness has 3 wires , a grnd , 1 dark blue and 1 light blue. i tried searches, but no help. the wiper motor has 3 spades for the wiper sw hookup plus 2 spades for the washer pump. i changed the fuse panel from glass fuses to spades. i attached a blue wire marked wiper motor power to the middle spade from fuse panel on the 3 spade location. i have power to that spade after checking with the tester light. where do the other 2 go? the wiper sw is a 1994151 standard 2 sp sw. thanks in advance for any help.
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#2 |
Senior Member
![]() Join Date: Jul 2014
Location: Indy, IN
Posts: 637
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Re: 73 gmc wipermotor and switch w/pump
Bump. For
My 76 dark blue was washer and the black/white and light blue were the hi or low I believe.
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Andrew 1953 3100 292 T5 1985 K5 Blazer 350 700R4 208 |
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#3 |
Registered User
Join Date: Feb 2008
Location: Surprise, Ariz.
Posts: 186
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hi andrew. problem solved. thank you. For your info i attached the dark blue wire to the washer pump harness. i found out the 3rd wire black was hot not ground on the sw. it was the hi spd wire. th lite blue is the low spd. the wiper motor has the ground. thanks again. frank
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#4 |
Senior Member
![]() Join Date: Jul 2014
Location: Indy, IN
Posts: 637
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Re: 73 gmc wipermotor and switch w/pump
Cool I'm still messing with mine bc I have an 86 steering column and want the wiper controls to work on it so I've been searching for wire diagrams and stuff. The later motors are a bit different but glad I could help.
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Andrew 1953 3100 292 T5 1985 K5 Blazer 350 700R4 208 |
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#5 |
Moderator
![]() Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,951
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Re: 73 gmc wipermotor and switch w/pump
The factory wiring diagrams are in my signature. The connectors GM used are either Delphi Packard 56 or Delphi Pak-Con. The connector part #s in the wiring diagrams will tell you which it is.
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1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. |
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#6 |
Senior Member
![]() Join Date: Jul 2014
Location: Indy, IN
Posts: 637
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Re: 73 gmc wipermotor and switch w/pump
Thanks hatzie
I definitely have been looking at your links in the past and will have to work on it this weekend instead of paint(rain) thanks for follow up.
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Andrew 1953 3100 292 T5 1985 K5 Blazer 350 700R4 208 |
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