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Relay help!

Discussion in 'Lighting' started by Caduceus, Oct 15, 2010.

  1. Oct 15, 2010 at 6:47 PM
    #1
    Caduceus

    Caduceus [OP] Well-Known Member

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    Hey folks
    I'm trying to put on rear aux. lights. I've got a 4 pin relay, with absolutely NO markings on the plugs, or outside of the relay (besides name/model number and volt/amp ratings). Anyone know which numbers that the plugs are supposed to correspond to?

    After about 30 minutes of google, this is the relay I have:
    http://suvlights.com/product_info.php?products_id=117&osCsid=0164ba7ac139a7d8ca7943242b38c00a

    If someone can just tell me the labels, I'll be good to go.

    Thanks!!!
     
  2. Oct 15, 2010 at 7:08 PM
    #2
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    There's some good info in this thread. Not 100% sure what you're asking...

    http://www.tacomaworld.com/forum/lighting/114262-wiring-off-road-lights-relay-help.html#post2192607
     
  3. Oct 15, 2010 at 7:25 PM
    #3
    larryde09

    larryde09 Well-Known Member

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    Rochester, NY
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    (Traded-in) 06 2.7L 5-spd SR5 4x4
    K&N Intake, Magnaflow Cat-back Exhaust, Altezza Tail Lights, Pop&Lock Tailgate Lock, Extang Trifecta Tonneau Cover, PIAA foglights with stock switch, DrawTite Hitch, OBX Shift Knob, Hood Protector, Vent Visors, DIY step bars/sliders/running boards, DIY Bed Lights, DIY Running Board/Ground Lights, DIY Tailgate Electrical Box (12V socket, voltage and current gauges), DIY Internal Lighting (coming soon), Aftermarket switches in stock dash blanks, Sony Head Unit, Illuminated 4x4 switch mod
    If the info isn't printed on the case, sometimes the pins are marked by the molded plastic near where the posts enter the case. If there still isn't any markings, you can figure out the functions by trial and error using a battery (use a 9V, not the car battery).

    Ground one of the posts (i.e. connect it to the negative battery terminal), then connect the positive terminal to any one of the other three terminals. If the relay doesn't click, try one of the other two remaining posts. If you hear a click, then you've found the coil posts. The other two posts are by process of elimination the high voltage input/output.

    If you didn't hear it click, move the ground connection to one of the other posts and try the process again until you figure it out. Once you think you got it all figured out, give it an operational test with 2 batteries (one acts as the control and the other as the high input) and check that the voltage turns on and off when you excite the coil.

    FYI: check out my electrical basics thread for reference/info (link in my signature)
     
  4. Oct 15, 2010 at 8:02 PM
    #4
    Caduceus

    Caduceus [OP] Well-Known Member

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    I'll give it a try Larryde09. Thanks. BTW, that's a great write up. I checked it out before I posted.

    Nothing at all is molded, written, stamped, etc. Frustrating.
     
  5. Oct 15, 2010 at 8:43 PM
    #5
    larryde09

    larryde09 Well-Known Member

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    (Traded-in) 06 2.7L 5-spd SR5 4x4
    K&N Intake, Magnaflow Cat-back Exhaust, Altezza Tail Lights, Pop&Lock Tailgate Lock, Extang Trifecta Tonneau Cover, PIAA foglights with stock switch, DrawTite Hitch, OBX Shift Knob, Hood Protector, Vent Visors, DIY step bars/sliders/running boards, DIY Bed Lights, DIY Running Board/Ground Lights, DIY Tailgate Electrical Box (12V socket, voltage and current gauges), DIY Internal Lighting (coming soon), Aftermarket switches in stock dash blanks, Sony Head Unit, Illuminated 4x4 switch mod
    Understandable...give that little test a try, good luck!
     
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