Tail light issues 1990 f150
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Tail light issues 1990 f150
I ahve a 190 f150 lariate with the straight 6. My driver side tail light is always on as if im pressing the brake pedal... baught a new pigtail didnt fix it anybody got any ideas??
Junior Member
Joined: Jul 2013
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From: upstate NY
Light green/Orange (strip) wire.
What conditions does this happen? Is this only when the engine is running or any time?
The diagram (Haynes unfortunately) show that it's a brake/turn combo light. The high side of the bulb is hot (+12 v)with brake or L.Turn. The low side of the bulb is Hot with parking lights.
You are going to have to trace the wire back from the tail lens OR. check the Light green/Orange wire at the Multi Function (turn) switch.
You will want some sort of test probe. Clamp it to a good piece of metal or Negative battery terminal.
What conditions does this happen? Is this only when the engine is running or any time?
The diagram (Haynes unfortunately) show that it's a brake/turn combo light. The high side of the bulb is hot (+12 v)with brake or L.Turn. The low side of the bulb is Hot with parking lights.
You are going to have to trace the wire back from the tail lens OR. check the Light green/Orange wire at the Multi Function (turn) switch.
You will want some sort of test probe. Clamp it to a good piece of metal or Negative battery terminal.