Ac blower relay
April 7th, 2010, 07:46 AM
#1
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Join Date: Jan 2006
Location: Summerville SC
Posts: 34
Ac blower relay
Can anyone give me an assist on how this relay is wired?, it has 1-2-3-4 pins and #1 is heavly staked(12v power?). It's an OPG OEM replacement. It's the relay that goes on the firewall behind the brk booster.
April 7th, 2010, 09:24 AM
#2
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Join Date: Feb 2008
Location: Plano, TX
Posts: 11,798
This and a few of the following post will help:
https://classicoldsmobile.com/forums...tml#post146530
The lone pin on the side is for the coil, it grounds through the case.
The 3 pins on the side are for contacts, common in the middle and NC and NO on the edges. Constant +12V will be coming from the horn relay / junction block (should have inline fuse holder).
NO contacts go directly to blower motor.
This is all assuming it is the system in question is the same as the 72's wiring...
https://classicoldsmobile.com/forums...tml#post146530
The lone pin on the side is for the coil, it grounds through the case.
The 3 pins on the side are for contacts, common in the middle and NC and NO on the edges. Constant +12V will be coming from the horn relay / junction block (should have inline fuse holder).
NO contacts go directly to blower motor.
This is all assuming it is the system in question is the same as the 72's wiring...
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oldzy
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September 10th, 2009 05:23 AM
