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  1. #1
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    Default Can two load resistors be wired in parallel?

    I really want to replace the two OEM 1157 bulbs in my brake/tail (running) lights with LEDís. I want the brake lights to strobe. Superbright LEDís has a modulator (but I get a VSS fault/limp mode) with it. Superbright tells me that I need a load resistor on each the left and right. My question is if those two resistors AND the strobe module can be wired in parallel on the brake light wire just above the switch by the pedal? That way, with both of them in parallel, half the resistance will go to each brake light and just one strobe modulator will run the system
    ~~2010 RS SE5 My first Spidey, but not my first ride~~

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  2. #2
    Very Active Member IdahoMtnSpyder's Avatar
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    First, since I'm not familiar with the RS are the turn signals amber and separate from the brake lights? Which modulator are you looking at? That can make a difference.

    2014 Copper RTS

    Tri-Axis bars, CB, BajaRon sway bar & shock adjusters, SpyderPop's Bumpskid, NBV peg brackets, LED headlights and modulator, Wolo trumpet air horns, trailer hitch, custom trailer harness, high mount turn signals, Custom Dynamics brake light, LED turn signal lights on mirrors, LED strip light for a dash light, garage door opener, LED lights in frunk, trunk, and saddlebags, RAM mounts and cradles for tablet (for GPS) and phone (for music), and Smooth Spyder belt tensioner.
    2014 RTS , Copper! (officially Cognac)

  3. #3
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    Quote Originally Posted by IdahoMtnSpyder View Post
    First, since I'm not familiar with the RS are the turn signals amber and separate from the brake lights? Which modulator are you looking at? That can make a difference.
    The turn signals are on the upper rear Tupperware. The lights in question are the standard 1157 bulbs (“globes” to Peter) that are two filament bulbs. One filament is the running, or tail light, and the other is the brake light.
    ~~2010 RS SE5 My first Spidey, but not my first ride~~

    The triggerís been pulled. We have to
    get there before the hammer falls.

  4. #4
    Very Active Member IdahoMtnSpyder's Avatar
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    What brake light modulator are you looking at? I don't find any on Superbrightleds.com. Signal Dynamics makes several different ones. I need to know which one you specifically are thinking of so I can see the wiring diagram and figure out how best to wire it in.

    2014 Copper RTS

    Tri-Axis bars, CB, BajaRon sway bar & shock adjusters, SpyderPop's Bumpskid, NBV peg brackets, LED headlights and modulator, Wolo trumpet air horns, trailer hitch, custom trailer harness, high mount turn signals, Custom Dynamics brake light, LED turn signal lights on mirrors, LED strip light for a dash light, garage door opener, LED lights in frunk, trunk, and saddlebags, RAM mounts and cradles for tablet (for GPS) and phone (for music), and Smooth Spyder belt tensioner.
    2014 RTS , Copper! (officially Cognac)

  5. #5
    Very Active Member PaladinLV's Avatar
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    NO!
    Not sure I read your question correctly or IF it was worded correctly BUT:

    Two resistors in parallel on the main line is NOT the same as one resistor in each line.

    AJ
    Last edited by Peter Aawen; 03-13-2023 at 09:25 AM. Reason: of - or ;-)


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  6. #6
    Active Member tntnj's Avatar
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    PaladinLV is correct if you were to parallel lets say 2 100 ohm resisters they would equal 50 ohms


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  7. #7
    Very Active Member IdahoMtnSpyder's Avatar
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    I'm not sure he needs resistors to use LEDs with the brake light modulator. That's why I want to know what modulator he's thinking of using since it can affect how the ECM monitors the brake light circuit.

    2014 Copper RTS

    Tri-Axis bars, CB, BajaRon sway bar & shock adjusters, SpyderPop's Bumpskid, NBV peg brackets, LED headlights and modulator, Wolo trumpet air horns, trailer hitch, custom trailer harness, high mount turn signals, Custom Dynamics brake light, LED turn signal lights on mirrors, LED strip light for a dash light, garage door opener, LED lights in frunk, trunk, and saddlebags, RAM mounts and cradles for tablet (for GPS) and phone (for music), and Smooth Spyder belt tensioner.
    2014 RTS , Copper! (officially Cognac)

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