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Old 09-16-2019, 01:20 PM
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Connor M Connor M is offline
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Default DS low beam out

My driver's side low beam does not work. I tried other bulbs, then broke out the test light, and I get nothing in the low beam side of the plug or stabbing the wire further back. Before I tear apart the harness, is there anything else easy I could check? I assume the headlights are on the same fuse so I ruled out that as a possibility.

PO had a plow setup he pulled out of the truck prior to sale. Don't think that has anything to do with it but I'm throwing that out there.
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2008 CCSB 6.4 Harley Davidson- PPEI Tuned, EZ Lynk, 4" Jamo Stainless Exhaust, Diet Coke, 35x12.5 Cooper Discoverer STT Pros
2008 CCLB 6.4 Lariat Land Yacht- H&S tuned, S&B intake, Diet Coke
2003 RCLB 6.0 XLT- 260,000 miles, no name tunes, stock as can be
6.0 Dump Trucks- 350 and 450
VT365 Rollback
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Old 09-17-2019, 05:55 PM
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Go back in the harness until the next connection and see if you have power.
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Old 09-17-2019, 06:43 PM
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eng53ine eng53ine is offline
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Does it have separate fuses for each side? I know some vehicles do, never paid attention to it in fords.


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02 F-250, 7.3, auto, ccsb, 4x4, 4'' duals, 6637, IH bellowed up pipes, RiffRaff billet wheel, canned 6 pos. TS- sold

94 250, 7.3, 5spd, eclb,- sold
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Old 09-17-2019, 07:31 PM
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So there are separate fuses for h/l and r/l but those were good and I had power at the fuse panel. Apparently the BCM controls the lights, there are no traditional relays. For now I rigged up the low beams to work all the time off key on power, and I will have the BCM replaced but itís enough for me to drive at night with at the moment.
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2008 CCSB 6.4 Harley Davidson- PPEI Tuned, EZ Lynk, 4" Jamo Stainless Exhaust, Diet Coke, 35x12.5 Cooper Discoverer STT Pros
2008 CCLB 6.4 Lariat Land Yacht- H&S tuned, S&B intake, Diet Coke
2003 RCLB 6.0 XLT- 260,000 miles, no name tunes, stock as can be
6.0 Dump Trucks- 350 and 450
VT365 Rollback
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Old 10-02-2019, 07:00 PM
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Update on this- it was a BCM issue. While I wait for my new BCM to come in, I just wired both lows up to a key-hot fuse (both so that it doesn't look weird driving around with one headlight on in the day) and it's working great. PO was driving around like that for a while, the wire had become dislodged and I clipped it thinking it was something to do with some plow wiring. One phone call and I was back in business.
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2008 CCSB 6.4 Harley Davidson- PPEI Tuned, EZ Lynk, 4" Jamo Stainless Exhaust, Diet Coke, 35x12.5 Cooper Discoverer STT Pros
2008 CCLB 6.4 Lariat Land Yacht- H&S tuned, S&B intake, Diet Coke
2003 RCLB 6.0 XLT- 260,000 miles, no name tunes, stock as can be
6.0 Dump Trucks- 350 and 450
VT365 Rollback
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