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Headlights and turn signals not working

Discussion in 'Grand Cherokee' started by OhioJoe, Feb 10, 2022.

  1. Feb 10, 2022 at 4:42 AM
    #1
    OhioJoe

    #1
    OhioJoe [OP] New Member

    Joined:
    Feb 10, 2022
    Member:
    #6252
    Messages:
    1
    Gender:
    Male
    First Name:
    Joseph
    Vehicle:
    2010 grand Cherokee Limited
    The other day my headlights,turn signals,horn and windshield wipers quit working I replaced the headlight switch and that did not fix it in the ideas out there? I have a 2010 grand Cherokee Limited
     
    OhioJoe, Feb 10, 2022
    #1
  2. Feb 11, 2022 at 2:44 AM
    #2
    Groundfault

    #2
    Groundfault Well-Known Member

    Joined:
    Jul 4, 2021
    Member:
    #5769
    Messages:
    120
    Gender:
    Male
    First Name:
    Tim
    Vehicle:
    87 Wrangler, kind of...
    5.7 V8 with Whipple Supercharger, TH350 w/B&M Shifter, NP205 TC, Dana 60 front 4.56, GM 14 bolt 10.5 rear 4.56, 4 wheel discs, Bilstein shocks, 6" lift on 37's, Autometer gauges, all led lighting and a few other things.
    Check/clean all of your ground cables to battery, firewall and fenders. Try disconnecting the battery for at least 4 minutes. Reconnect negative and turn key to on position for 12 seconds. Turn key to off and then start Jeep. If problem is not corrected you're best bet is to have someone with a diagnostic scanner check modules including SCM. Could be a faulty SCM (steering control module). Unless I'm mistaken, you're left multifunction lever controls lights and you're right lever controls wipers. The SCM interfaces signals from both levers and horn to the CAN data bus.
    Best of luck with it and keep everyone posted when you find the problem.
     
    Groundfault, Feb 11, 2022
    #2
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