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'06 F-150 Headlights only when moving plow

Discussion in 'Western Plows Discussion' started by Dstosh, Oct 2, 2014.

  1. Dstosh

    Dstosh Senior Member
    Messages: 534

    Installed a 3 wire ultra on a friends truck today. The only problem is the headlights and marker lights only work when the plow is moving. When you go left or right the lights work, but after there is no power to the motor the lights on the plow don't work.

    Any ideas?

  2. mishnick

    mishnick 2000 Club Member
    Messages: 2,353

    There is a wire with a large eyelet that is supposed to go on the hot side of the motor relay / solenoid. Is it possible that you connected it to the output side of the relay? This would send power only when the motor is active. That wire feeds the two small fuses (7.5 and 15 A) that would be near the adapter by the isolation module.