Ford Wiring/Electrical :: Brake Lights / Cruise Control / Rear Hazards Not Working
Mar 11, 2015
1991 F250 Supercab Diesel 4X4. I made a mistake while wiring up my trailer lights and ended up grounding out my brake controller, frying it. Along with that, I popped a couple fuses as well (1, 5 and 9 I believe). Replaced all fuses and got my signals (F/R) back at least.
Here's what's NOT working/messed up:
*Brake Lights
*Cruise Control
*Rear ABS light comes on a few minutes after driving.
*Front hazards work, not rear. When I apply the brake, the hazards pause in the on position.
I've tested the brake switch on the brake pedal (Green/Red and Green) and it works properly. So, current is obviously not reaching the rear brake lights.
Another note. The truck is wired with a 7 pin plug in the bed for a goose neck trailer. It also was wired to a 6 pin on the bumper. I replaced the 6 pin with a 7. The signal/brake pins on the plugs (both) and also not receiving power. What's the next thing to check?
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Dad borrowed truck and wired 7 pin trailer harness. Lights worked on truck/trailer for use but upon return the turn signals didnt work. Hazards and running and brake lights did work. Replaced TS flasher and Haz flasher. Still no signals. Pulled steering wheel and replaced turn signal cam only, not whole switch. Now no brake lights, no rear hazards or turn signals. Losing my marbles trying to follow schematic and using test light and mulit meter. All bulbs and fuses are good. Running lights and head lights working as well.
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Well, on our way home during my leave, the wife made the comment about halfway home that the blinkers had quit working. I assumed it was probably a fuse or relay, so we came on home. I have been looking at it for a few days now (too hot to spend too much time out crawling around under the dash ) and I am still having some trouble. My brake lights, and hazards are not working, and neither is the cruise, which was working fine while I drove before the blinkers went out.
I have no power at all to the flasher relay. I replaced the brake light switch because it was definitely worn and looked a little burned inside when I pulled it out and inspected, but still nothing. Have not found any fuses blown. Brake pressure switch fused link harness seems good with my test light. Wipers, brights, everything else on the turn signal switch works fine. Can't even get the cruise to go into diagnostic mode, it only blinks once when I try.
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I have an 89 f250 7.3. horn has not been working for the longest time the relay clicks but still nothing. It doesn't matter weather the key is in the on or off position. I know it might be a grounding problem because the cruise control does not work any more (even though recently it was working just fine). I didn't see any bad fuses.
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I have a 1994 f150 5.0 engine and automatic transmission. Problem I am having is speedometer, cruise control is not working. Overdrive light is flashing and number 18 fuse keep blowing. horn is still working...
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My hazard, reverse don't work. The over all instruments panel light doesn't light up (the small bulbs work). Gauges with needles work. I'm putting every thing back into the truck. I left the steering wheel resting on the floor while cleaning and also left the wiring in. Everything else came out because I had to clean out the smell of mice. After I installed the instrument panel I started the truck, there was no hazard lights. I checked all the fuses under the dash. I checked all the fuses under the hood.
I did have a bent brake plug blade to bend straight. I need to replace a bad key cylinder, you can turn it without a key. I believe there were three plugs I unplug to lower the steering wheel. Park brake, brake pedal and a plug under the steering wheel. Wipers, interior ceiling light work. I believe there's a switch on the column (?) that includes the wiper arm. Should it also operate the hazard lights ? The steering column is installed, I can drive it around. Outside cargo lights won't go off, even with the light switch pushed in. Everything worked before.
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So I have an 04 F250 Super Duty 6.0L and suddenly the turn signals and hazards stopped working. First I replaced the switch on the steering column...no luck. Today I replaced the flasher relay under the dash panel (the blue one)...still no luck. I remember checking fuses in the fuse box but don't remember which ones I checked but I didn't see anything obvious. I also took a quick look under the dash at all the wires for any anomalies...nothing. I'm lost... What to do next!?
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My brake lights don't work. Turn signals, tail lights, hazard flashers work, but if I hit the brake, nothing happens. What could possibly be the problem? Could there be a wiring issue?
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I did lower the steering column, onto the seat. Also lowed the dash and the wiring. Does it sound like the Multifunction switch could be bad? I can put it in drive, so I don't think it's the brake light pedal switch, that's bad.
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i have an 85 f150. the brake lights are not working. i checked the bulbs, both filiments are working. i have running lights, turn signals, and hazards, just no brake lights. i am confused as to why i have everything else except brake lights. need to figure out what to do next to figure this out.
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Looking for wiring diagram for the older Ford cruise control switches. I'm wanting to add an aftermarket system but use the factory switches. It's for a 99 ranger with the steering wheels like the mark 8s, older mustangs, explorers, and many others, had.
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Turn signals quit working on my 2006 E-150. Swapped out the relay under the dash and it did nothing. Also noticed the brake lights aren't working. The headlights and taillight a are working. I pulled the fuses under dash for the lights and they tested ok. I did notice the flasher relay was making clicking sounds intermittently even when not touching anything.
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I have no left rear signal or brake lights. The right side works fine and both left/right tail lights work fine, just no left brake or signal. I checked for broken wires and can not find anything. 1992 Ford E50 7.5L.
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I have a1994 Dodge 1500 Ram Hemi extra cab 4door. The brake lights on the bed of the truck not the high light will blink on and off and sometimes stay on the other day my son-in-law narrowed the truck and a trailer and the trailer also blinked but again not the high light. Also the cruise has stopped working about the same time this started. At one time it was infrequent now is most of the time. Wondering if it could be part of the alarm system or something else it is driving me crazy.
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I just bought an 05 F250 XLT. I noticed tonight that the rear turn signals and brake lights dont work.
the front turn signals work fine, although they flash fast. I know that usually means a light on its way out. neither taillight flashes though, which puzzles me.
my second issue is that, of the 3 brake lights, only the high mounted light illuminates when I hit the brakes.
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My college son's 2014 Charger V6 has developed three issues since he purchased it used in late May. The cruise control has stopped working and the anti lock brake and traction control lights are constantly on. Any possible cause?
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My brake lights, turn signals, and flasher are not working in my truck. Is it a fuse and what fuse? Could it be a relay?
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I just bought an 05 F250 XLT. I noticed tonight that the rear turn signals and brake lights don't work.
The front turn signals work fine, although they flash fast. I know that usually means a light on its way out. neither taillight flashes though, which puzzles me.
My second issue is that, of the 3 brake lights, only the high mounted light illuminates when I hit the brakes.
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i have a 96 ranger and want to put cruise control in it. is the wiring there and what other parts do i need to get without going aftermarket.
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I am trying to find out if Ford's cruise control has gotten crappy, or if mine has problems in my '06 F250. When I set the cruise, it goes about 3 MPH above what I set it at, then drops to about 3 MPH below, then it eventually stays where I set it. That is until I come to the top of an overpass or other small grade, then it is back to about 3 MPH over again as I reach the top and level out, then going back to where I set it.
The cruise control in my previous Ford trucks (83 & 91), as well as my 82 Mustang, 85 Lincoln, wife's 97 Toyota and the 2013 Chevy rental I just had, works fine. Where you set it is where it stays. Of course going up or down a steep grade, they all are going to lose or gain speed.
Anyway, I have taken the truck to the dealer twice for the cruise control. The first time is when I got the truck in '08. They replaced something else non-related, and said that would fix the cruise. It did work marginally, as the fluctuation was +-4 MPH before. I just took it in again before it goes off warranty, and they said the cruise is operating normally. So, there's my story. Is this normal, or is something wrong?
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I have a 1999 Super Duty 5.4l Manual transmission 4x4 105,000 miles the cruise control stopped working a month ago, I didn't think much of it because I frankly don't use cruise as this vehicle is usually used to tow and I don't run cruise towing.
Long story short I went to tow my camp trailer and noticed my brake controller was not actuating the trailer brakes when I braked, the controller is showing connected and when I manually actuate the controller its working, so I knew I had a brake light issue, I checked the brakes and sure enough I have no functioning brake lights.
I bought a Motorcraft OEM brake pedal switch and replaced it to no avail,I have also checked the applicable fuses they are fine. I have a master cylinder cruise control switch to change but have my doubts this is the issue since the brake lights and cruise are non functional.
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