Led headlights 389 issues

Discussion in 'Peterbilt Forum' started by joey0921, Nov 7, 2018.

  1. joey0921

    joey0921 Bobtail Member

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    I have a 2009 Pete 389 and currently have oem headlight housing with led bulbs. Everything works fine. Decided to order all aftermarket headlights for a brighter style instead of just bulbs. Once plugged in and you start the truck. The bright indicator starts flashing and the brights turn on also when on dim. Click onto bright and works like it should, then try go back does it again. I installed resistors to the power wire for the dims and then other end to ground like they are suppose to be hooked up. Now they will last maybe 20 seconds before indicator starts flashing again. Any ideas what to try next? Maybe a rectifier diode of some sort from what I have read? Thanks.
     
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  3. pavrom

    pavrom Road Train Member

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    ... probably needs error cancellers....had same issue on BMW with cheap bulbs ....don't use led .. they don't heat the housing , you not gonna see anything during snow
     
  4. joey0921

    joey0921 Bobtail Member

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    I have them on my other trucks and have no issues with them. Even during the snow. They are bright enough to make up for it.
     
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  5. pushbroom

    pushbroom Road Train Member

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    Might need to enable led headlights in the CECU.
    Most times anti flicker modules need to be installed as well
     
  6. joey0921

    joey0921 Bobtail Member

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    I ordered a set so I will try them! You think I will still need the resistors hooked up along with the anti flicker modules?
     
  7. CraigInReston

    CraigInReston Light Load Member

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    Message Heavyd. He is really good with electronic issues.
     
  8. pushbroom

    pushbroom Road Train Member

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    I would try without the resistors first and just the anti flicker modules.
    Paccar released factory anti flicker modules for the 520 with led headlights. I am wanting to try a pair out on my next install
     
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  9. joey0921

    joey0921 Bobtail Member

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    Okay thank you! I will let you know I end up doing!
     
  10. Tall Mike

    Tall Mike Road Train Member

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  11. KB3MMX

    KB3MMX Road Train Member

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    Do you have the part # ?

    Thanks
     
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