1999 F150 4x4 Backup lights not working.
07-22-2017, 12:08 PM
#1
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1999 F150 4x4 Backup lights not working.
This has been a problem for awhile. They failed completely, but no blown fuses and applying voltage to the Positive side of the backup lights, they will illuminate when jumpered. Suspecting the Multi-Function switch on the transmission that is suppose to also control the brake lights, I replaced it but no change. They still don't work. Any WAGS or suggestions?
07-22-2017, 12:41 PM
#2
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Well my first suggestion would be to post in the 97-03 forum, as this is the 87-96 forum 
But I think you are probably on to something with the way the tranny is delivering the signal to the lights - good luck.
But I think you are probably on to something with the way the tranny is delivering the signal to the lights - good luck.
07-27-2017, 11:42 PM
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I installed a Backup Camera on my 94 F150, I found the switch on my M5OD wasn't working. I tried two new switches from the local auto parts and couldn't get them to work. The switch actuator just wasn't being depressed enough to make the contacts. I finally had to find an original at a wrecking yard now they work fine.