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DoubleAction
01-29-2009, 08:24 AM
Hi All,
Can somone offer me a wiring diagram for the (OEM extra fog lamp switch) located under the headunit so i can replace the PIAA swith.
Or just tell me where to connect the PIAA wires to (OEM extra fog lamp switch) located under the headunit .

I searched the forum but no clue :(

Please Help Me With This Issue

wpage
01-29-2009, 03:17 PM
Here is a link showing a way to connect a inexpensive 4 pin relay which enables a low amp 12v to grd circuit to activate a high amp circuit...



http://www.classictruckshop.com/clubs/earlyburbs/projects/bosch/foglites.htm


You can get one of these relays for under $5.00 however the install requires some experience with wire connectors and soldering to avoid problems with shorts. Care should be used in picking a open location to mount the relay in a accessible and clear area under the hood. Not under the dash.

The illustration shows the bosch 5th pin 87a which is not needed for this application...

Major Tom
01-30-2009, 12:20 AM
there are three wires off of the OEM switch.
A B C A=ground
B=accesories
C=12 volt +
I hooked up four Eagle Eye lights and used two OEM switches

DoubleAction
01-30-2009, 08:38 AM
there are three wires off of the OEM switch.
A B C A=ground
B=accesories
C=12 volt +
I hooked up four Eagle Eye lights and used two OEM switches

Thanks Pal,
But how can i know wich is A B C on the OEM?
Are They writen on the OEM switch

Major Tom
01-31-2009, 12:33 AM
The pigtail wire harness that hooks to the OEM switch is marked A-B-C . The switch comes in two pieces. The switch & the pigtail wire harness. The switches were $27 each at the dealership. The pigtail was $35 each at the dealer. I found the pigtail on line for $16 each. Just Google GM part # 12101864

DoubleAction
02-04-2009, 11:18 PM
The pigtail wire harness that hooks to the OEM switch is marked A-B-C . The switch comes in two pieces. The switch & the pigtail wire harness. The switches were $27 each at the dealership. The pigtail was $35 each at the dealer. I found the pigtail on line for $16 each. Just Google GM part # 12101864

Thank you so much