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Passenger Low beam Doesnt Work MFS?

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Old Dec 28, 2015 | 01:30 PM
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Passenger Low beam Doesnt Work MFS?

Was working on a friends 06 F-250 and was trying to wire in some plow headlights. I must have shorted something out and the Passenger side low beam doesn't work. The high beam works and the drivers side high and low work. The fuse under the dash is good. From looking around, is it possible that the multi function switch on the column got shorted out? Any way I can test? Any other things I can check?


Thanks
 
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Old Dec 28, 2015 | 07:24 PM
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Forgot to mention that I unhooked all the plow stuff so it is just the truck. No plow stuff is hooked up at the moment. Just the truck. I have no lowbeam on the passenger side.
 
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Old Dec 28, 2015 | 08:31 PM
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is it possible that the multi function switch on the column got shorted out?
No. The left and right low beams have individual fuses, see owner's manual. If both fuses are good, you may have blown the bulb.
 
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Old Dec 28, 2015 | 11:31 PM
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I had something similar happen on my 06' f350 6.0 and after checking the fuse and bulb, both were good, I followed the wires up and found that they had either melted and shorted out or shorted out and then melted right above the turbo in the plastic wire tray. It got about 10 wires in total. I just soldered in new wire and heatshrink and I was back in busines. Hope that helps you some.
 
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Old Dec 29, 2015 | 04:21 PM
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Originally Posted by projectSHO89
No. The left and right low beams have individual fuses, see owner's manual. If both fuses are good, you may have blown the bulb.


Both the fuses are good. Both the bulbs are good. Is there a relay?
 
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Old Dec 29, 2015 | 05:18 PM
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If the low doesnt work but the high does start following the wires.... Probably a short.
 
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Old Dec 29, 2015 | 05:27 PM
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Did you check fuse 47? Each low beam circuit shows it has separate fuse. Fuse 47 for right (passenger) low beam and fuse 48 for left (driver) low beam.

If both are good, change the bulbs from side to side to make sure bulb is not the problem.

high beam is fuse 30.
 
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Old Dec 29, 2015 | 05:30 PM
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From: Tallassee, ALabama
 
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Old Dec 29, 2015 | 05:37 PM
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The evil field mice did that to my 2000 that had soy based wire coatings. Mice love that coating and ate through the wires several times.
 
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Old Dec 29, 2015 | 06:18 PM
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I've checked the 47 fuse. Even replaced it. There is power at the fuse. I have also switched bulbs from side to side to confirm.
 
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Old Dec 29, 2015 | 06:38 PM
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Check for power at the plug for the bulb. If none, start digging into the harness.
 
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Old Dec 29, 2015 | 06:44 PM
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Originally Posted by projectSHO89
Check for power at the plug for the bulb. If none, start digging into the harness.
No power at plug.
 
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Old Dec 29, 2015 | 06:46 PM
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Then you have your instructions. You have an open between F47 and the connector.
 
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Old Dec 30, 2015 | 09:19 AM
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So you were hooking up some plow lights?
Were you using those blue wire taps ?

You quite possibly broke the wire in two at that location.
Go back with a test light and probe above the point you were tapping into the wire.

You have been given a wiring diagram , I would thank the poster , and use that.
 
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