fog relay/ oem momentary switch

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themodifier

Member - Posts: 8

Joined: February 20, 2009

Location: Texas, United States

Posted: March 03, 2009 at 2:15 PM / IP Logged

Yes I have. Please take a look at my original post, and you will see that I referenced the latching relay from this website

fog relay/ oem momentary switch - Page 2 - Last Post -- posted image.

This set-up will not work, because the output is a constant 12v+(as noted in BLUE), and I need 12v- constant output. I appreciate your input, but I don't see a solution. Is there something I'm not understanding? Thanks in advance

ckeeler

Gold - Posts: 1,461

Joined: June 20, 2008

Location: New Mexico, United States

Posted: March 03, 2009 at 2:19 PM / IP Logged

yes, there is something you are missing. i said you need 6 relays, not five. you need this setup plus 1 more relay to change the positive output to negative polarity (see relay section again if you dont know how that is done)......or......just get an electronic latching relay.

themodifier

Member - Posts: 8

Joined: February 20, 2009

Location: Texas, United States

Posted: March 03, 2009 at 2:57 PM / IP Logged

I am trying not to sound ungrateful. I looked at the relay page, and I do not see a diagram with 6 relays, nor do I see instructions on how to add a 6th relay to the latching relay set-up. Could you please direct me to this diagram(or copy and paste). If not,maybe you could direct me to the instructions on how to add this additional relay. Sorry to be a pain.

ckeeler

Gold - Posts: 1,461

Joined: June 20, 2008

Location: New Mexico, United States

Posted: March 03, 2009 at 3:23 PM / IP Logged

no biggie.

fog relay/ oem momentary switch - Page 2 - Last Post -- posted image.

themodifier

Member - Posts: 8

Joined: February 20, 2009

Location: Texas, United States

Posted: March 03, 2009 at 10:19 PM / IP Logged

Very Much Appreciated!!!!I'll give it a try once I have the rest of my wiring harness completed. I'm still waiting for some of the components to arrive. I've noticed in several forums that many have given up on trying to use as much as possible of the factory set-up, and bypass the BCM. They usually scrap the factory set-up, or go to the dealership to have their BCM's "flashed", because the vehicle didn't come equipped with the option. The dealerships usually charge $90 on average. I'll report back with results, and pic's so that this can be of some assistance to others in the future.

theviperman

Member - Posts: 15

Joined: March 25, 2009

Location: Pennsylvania, United States

Posted: March 31, 2009 at 9:35 AM / IP Logged

Hi - first time poster.

Though I have not priced out the components of this diagram completely, my guess is that the relays are $5 a piece, plus at least $6 in wire (should probably use a few different colors) and at least $4 in connectors for the relay pins Total is 40 dollars and a few hours of soldering, etc...

You can also go and buy a TR-7 module from PAC - it's a 7-function module that you program for it's first use - function "3" is a latching function, all done electronically. I have been using the TR-7 module in a kit I sell online for over 3 years now.

My reason for visiting this site is that the TR-7 has risen to about $33, shipped (purchased through The Better Source in Chicago) and I'm trying to find a new way to do this cheaper.

Search for "PAC TR-7" in google - you'll find it easily. MUCH easier to work with than multiple relays.

Jeff

Don't mind me...

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fog relay/ oem momentary switch

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