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The ultimate headlight upgrade H4 (not LED or HID)

Discussion in '2nd Gen. Tacomas (2005-2015)' started by crashnburn80, Oct 27, 2015.

  1. Feb 1, 2020 at 11:28 AM
    #2801
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    Sounds more like a voltage issue than a bulb issue, especially if both bulbs are doing it. If it repeats white the truck running in place you might try putting a multimeter on your battery and see if the dimming coincides with a drop in voltage at the battery terminals.
     
  2. Feb 1, 2020 at 1:27 PM
    #2802
    DJinVT

    DJinVT New Member

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    Ultimate headlight Upgrade with Harness
    I Did the upgrade today, including the Headlight Services harness and Osram H4 100/90W bulbs. The instructions for the harness were dead on and (almost) everything went without a hitch. I didn't electrocute myself and the lights work so far with no smoking wires or sparks :)

    I can't wait for my first night drive to test them out.

    The one issue I ran into was that the plastic thingies (Pic attached) that hold the radiator shroud were brittle (6 year old plastic, not a shocker I guess) and snapped on me when trying to undo the shroud. Does anyone know where I could order some replacements online. I have a 2013 Tacoma, so if you happen to have the part number for those it would be really appreciated !

    Thanks ! //dj

    CleanShot 2020-02-01 at 16.09.59@2x.jpg
     
    Norton and crashnburn80[OP] like this.
  3. Feb 1, 2020 at 1:48 PM
    #2803
    Toy_Runner

    Toy_Runner Well-Known Member

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    @DJinVT

    Typically the parts department of your local toyota dealership will keep stuff like that on hand (or at least mine has done so regularly). Might want to just give the parts department desk a call and describe them. Usually pretty inexpensive.
     
    EdgemanVA likes this.
  4. Feb 1, 2020 at 8:28 PM
    #2804
    Colinator4321

    Colinator4321 Well-Known Member

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    Believe the part number is Toyota 52161-02020

    Wish I could help more since I recently ordered a batch off Amazon and they seem to work, but they are no longer available. Deals can still be found tho. When I bought them, I got a pack of 30 for <$6 Canadian. Sure beats $2 a clip.

    Also worth noting that there are multi packs available, that have multiple different clips in one pack
     
  5. Feb 2, 2020 at 4:20 AM
    #2805
    Too Stroked

    Too Stroked Well-Known Member

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  6. Feb 2, 2020 at 4:54 AM
    #2806
    TegoTaco

    TegoTaco Well-Known Member

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    eBay or AliExpress is your friend for clips.
     
    This site contains affiliate links for which the site may be compensated.
    FastEddy59 likes this.
  7. Feb 2, 2020 at 8:12 PM
    #2807
    alnilla

    alnilla Well-Known Member

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  8. Feb 3, 2020 at 5:14 AM
    #2808
    DCCHIRO

    DCCHIRO Member

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    Jason
    Bardstown , KY
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    ICON Stage 7 Suspension
    Found the issue... Apparently my off-roading last weekend jarred the (+) wire loose and it didn’t have full contact. I went to start it early this morning and had no lights. Wiggled the offending wire and lights came on fine. Got it secured tight and have had no problems since. I’m guessing it must of been getting partial contact to keep having it dim like it did. Thanks for your help
     
    GonzoQuick and crashnburn80[OP] like this.
  9. Feb 3, 2020 at 1:36 PM
    #2809
    Too Stroked

    Too Stroked Well-Known Member

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    Glad you found it!
     
  10. Feb 3, 2020 at 2:28 PM
    #2810
    zharv

    zharv Well-Known Member

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    Got Mike's harness finally and some of the Osrams and am super stoked to install but didn't realize I might lose use of my driving lights. On Mike's documentation it states that his harness is not intended for my type of lighting system, identified by the light switch/signal arm that I have (2013 TRD OffRoad). Am I reading this right/is this well known? I've looked through most of this thread and did a quick search but can't find much.

    Edit: I have seen OP's first page and I understand that it should't effect my amber driving lights that DO NOT use the headlight bulb. Just curious about HLS documentation.
     
    Last edited: Feb 3, 2020
  11. Feb 3, 2020 at 4:32 PM
    #2811
    Too Stroked

    Too Stroked Well-Known Member

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    Please define "amber driving lights." Are you talking about your Daytime Running Lights (DRLs) which use the amber front parking lights?
     
  12. Feb 3, 2020 at 5:48 PM
    #2812
    Notoneiota

    Notoneiota Well-Known Member

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    Mostly stock with a few minor mods.
    Just wanted to report that after 130k a stock bulb burned out. I decided to go with the Phillips +150 bulbs mentioned on the first page because they were $20 vs $50 for the GE bulbs.

    The description is dead on. The low beams are nice and white compared to the stock bulbs. The high-beams kind of suck though. The high-beams are a bluish tint and not as bright as I'd expect. I won't be replacing them with the same when they burn out.
     
    crashnburn80[OP] likes this.
  13. Feb 3, 2020 at 6:12 PM
    #2813
    zharv

    zharv Well-Known Member

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    Yeah the DRLs. But I just installed everything and it’s all good. Got myself confused with the wording on the HLS docs! Disregard my previous post.
     
  14. Feb 3, 2020 at 6:40 PM
    #2814
    zharv

    zharv Well-Known Member

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    Guess I could just post what I was confused about huh.... I think I’m “type b”. Like I said above though, after install, everything works as should. 5C231C16-8C6A-42C5-B425-7FA4FF68E291.jpg
     
    pinktaco808 likes this.
  15. Feb 6, 2020 at 6:47 AM
    #2815
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    Headlight Services specialized in 4runner and Jeeps before being adopted by this thread. The instructions are 4runner specific. In an H4 based 4runner the DRL is the headlights on reduced voltage. The harness relays operate as an on/off switch and cannot run at reduced reduced voltage, it will cause the relays to ‘buzz’ rapidly opening and closing till they fail. The headlight stalk pictures are for 4runners, and the DRL setting is referencing headlight DRLs. On the Tacoma, most are equipped with separate ambler indicator DRLs, unless they are from Canada, meaning the DRL function is completely separate from the headlights and not relevant to the harness. The last line is confusing because the Tacoma does use the type B switch, the statement is accurate on the relevant 4runner, but not on the Tacoma.
     
  16. Feb 6, 2020 at 1:47 PM
    #2816
    Colinator4321

    Colinator4321 Well-Known Member

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    Well that's good to hear. Best I can tell, my Tacoma had the type "C" switch since it's two clicks to headlights. But I'm still holding out hope that it'll work. Thx again for ur wealth of information
     
  17. Feb 6, 2020 at 4:46 PM
    #2817
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    If you can drive you truck today with the headlights off (unlike Canadian trucks), it will work.
     
  18. Feb 6, 2020 at 7:08 PM
    #2818
    pinktaco808

    pinktaco808 Hot Steppa

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  19. Feb 7, 2020 at 7:59 AM
    #2819
    Ten Eight Rider

    Ten Eight Rider Well-Known Member

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    Fox 2.5" Coilovers, Fox 2.0 Rear Remote Reservoir DSC, SPC Light Racing UCA, Wheelers Progressive 1.5" AAL, Wheelers Bump Stops, Wheelers Braided Brake Lines, Fuel Revolver 16x8, Toyo AT 265/75/16, ECGS Bushing, Energy Suspension Steering rack bushings/sway bar bushings, All-Pro Sway Bar Links, At the Helm Fabrication bumpers (front and rear), Cali-Raised LED lights, Leer Cap
    Just received my new OEM smoked housings yesterday and I spent a couple hours last night reading this entire post. This morning I ordered the Headlight Services harness and Osram H4 100/90W bulbs. I ordered 4 bulbs from the link, so that I will have a pair of spares, it was $50 shipped for the 4 bulbs. I am looking forward to the improved lighting from this upgrade. Thank you @crashnburn80 for all the time, effort and money you have put into the research on this!
     
  20. Feb 12, 2020 at 11:54 PM
    #2820
    Empty_Lord

    Empty_Lord Toyotaholic

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    Too many trucks and mods to list.. check builds
    I'm debating ripping my fuse box open on my truck.. Wondering if i just Run new larger Wires from the factory relay to the headlight (its a salvage yard box. the cut the damn headlight wires off) or do i just fix the connectors with crimps and heatshrink and run the custom harness with dual relays (in all reality i could add a second relay to the factory box i guess too.. hmmm.) Have to fix the corner light too.. assholes.. ITS SO HARD TO UNPLUG A WIRE. oh well it was 50 bucks
     

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