Brake Lights Inop.
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Senior User
Joined: Jul 2009
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Brake Lights Inop.
Hi, im working on a 1999 Ford F-150 XLT 2WD 4.6L.
The brake lights are not working about 90% of the time. However the third brake light always works. Blinkers and taillights function normally. I have already replaced the brake light switch on the pedal. This did not fix the problem. Anyone experienced this and know of a fix? Thanks.
The brake lights are not working about 90% of the time. However the third brake light always works. Blinkers and taillights function normally. I have already replaced the brake light switch on the pedal. This did not fix the problem. Anyone experienced this and know of a fix? Thanks.
Elder User
Joined: Jun 2004
Posts: 747
Likes: 2
From: Pelahatchie, MS
If the 3rd light works all the time, then it wouldn't be the pedal switch. It would have to be the wiring, the bulbs, or the sockets. Have you checked the sockets with a meter while someone cycles the brake pedal?
Mountain Pass
Joined: Jan 2002
Posts: 213
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From: Aston Pa USA
The brake light switch feeds the 3rd brake light directly.
The tail light feed for brake lights is via the multi function switch as the turn signals share the tail lights.
I'll be you have a bad connection at the MF switch or a bad MF switch.
The tail light feed for brake lights is via the multi function switch as the turn signals share the tail lights.
I'll be you have a bad connection at the MF switch or a bad MF switch.
Posting Guru
Joined: Oct 2008
Posts: 1,145
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From: Hernando Ms
Push the emergency blinker switch,and see if the rear,s blink.If they dont,its likely the emergency light switch assy.Contacts in it could be dirty,and merely pushing it on/off a few times may correct the problem.
If it does,I would still replace that switch,as the problem will likely return.
If it does,I would still replace that switch,as the problem will likely return.
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Mountain Pass
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From: Aston Pa USA
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Logistics Pro
Joined: Jul 2003
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From: Lawton, Oklahoma
The plastic pigtail connector at the back of the multifunction switch often is weakend by tilt columb use and the pins break out of the hard shell. You can buy the hardshell from the dealer because it is such a common issue. A bad multifunction switch can also cause the same issues or broken wiring near the switch.
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Senior User
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Ok thanks for all the input. This is one of my work trucks so Ill check it out tomorrow at work. I have noticed that the guy that drives this truck uses the tilt every time he gets in and out of the truck.
Senior User
Joined: Nov 2009
Posts: 203
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From: Western North Carolina
I had the same problem and it was the tail light sockets with dirt & corrosion.
I rarely adjust the tilt wheel as I am the only driver.
New light sockets were about $12.50 each fromthe local Ford dealer.
I rarely adjust the tilt wheel as I am the only driver.
New light sockets were about $12.50 each fromthe local Ford dealer.
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Senior User
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Well it turns out it was the connector on the back of the multi-function switch in the steering column.
I drepressed the brake pedal while moving the steering column up and down, and sure enough the brake lights flickered on and off. The wires were pulling out of the connector each time the guy adjusted the tilt on the column.
Thanks for all the help
By the way, where is the chimer located that sounds when the key is in the ignition and door is open?
I drepressed the brake pedal while moving the steering column up and down, and sure enough the brake lights flickered on and off. The wires were pulling out of the connector each time the guy adjusted the tilt on the column.
Thanks for all the help
By the way, where is the chimer located that sounds when the key is in the ignition and door is open?
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