98 2 door tahoe Tail light issue HELP PLZ!!

Discussion in 'Tech Info' started by Chevy_John, Sep 23, 2019.

Car Parts
  1. Chevy_John

    Chevy_John TYF Newbie

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    Hello I have a 98 2 door tahoe and it’s recently developed an odd issue. The brake lights and blinkers work fine until you turn on either the running lights or headlights. As soon as you do I only get the left light working and the right has nothing. Any ideas on where to start? Anyone have access to a wiring diagram? Thanks
     
  2. Big Mama

    Big Mama Full Access Member

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    Start with the easy stuff like your battery ground and cable. It causes all kinds of electrical problems especially where it grounds at the motor or chassis.
     
  3. ivin74

    ivin74 05 Yukon Denali

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    Try replacing the headlight switch. I would start there or disconnect the switch and run 12v to every wire to rule out the switch.
     
  4. Chevy_John

    Chevy_John TYF Newbie

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    Ok I’ll start there...Thanks. Is there anywhere I can access a diagram? I have plenty of test equipment but would like to know what I’m lookin at. Thanks
     
  5. Big Mama

    Big Mama Full Access Member

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    I did a quick google search for 98 wiring diagram and several came up.
     

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