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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Odd blinker/headlight behavior

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Old Jul 9, 2022 | 04:21 PM
  #1  
shadowplane676's Avatar
shadowplane676
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Mountain Pass
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Odd blinker/headlight behavior

So while most of my build is over on my main thread ( 1995 Lightning-ish build ), This is a bit more specific of an issue.

I am trying to get my lights to work correctly along with my Airbag system. Currently I have the following results:


Changes made during rebuild - LED lights, timer based flashers, wiring etc is stock. Grounds all appear to be fine.

1) Headlights off, blinkers mostly work, but sometimes don't. Same with hazards. Almost like there is a ground or power supply issue to the multifunction switch. I pulled the multifunction apart, cleaned up the contacts and re-greased with dielectric grease. No change.

2) Headlights on - blinkers try to work, but not enough voltage change to really light up or blink.

3) Airbag alarms with a 34 error blink code - drivers side resistance i believe. Changed clock spring and still errors. Bad airbag?

Video of behavior including blinking sometimes and sometimes not.
Odd light behavior
 
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Old Jul 10, 2022 | 07:09 AM
  #2  
jas88's Avatar
jas88
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20 Year Member
Joined: Feb 2002
Posts: 7,966
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From: Greater Austin, Texas
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Grounds "appear to be fine"? Does that mean you looked at them? Or did you take apart, clean contacts, and then put back on?
 
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