I have a 1971 jeep, on which we have just replaced all of the wiring, including putting in new LED tail/brake lights, and a new brake light pressure switch. 1 ANSWER. When brake pedal … read more. The vehicle hasn't been modded so the wiring is original and in the original location, and I've been looking at that but can't find anything obvious like broke wire, broke connector, etc. The circuit board is sealed inside the tail lamp assembly. That would explain why they work with the headlights off and the battery voltage is closer to 12v. Fuses are fine as are the bulbs. The contact stated that when the headlights were turned on, the brake lights would not operate. The 3rd (High Mount) brake light works fine in either situation. How Do Headlights Work? I've got a 99 WJ 4.0 with a brake light problem. The contact stated that when the headlights were turned on, the brake lights would not operate. Tail lights could turn off for several reasons and they are almost similar to the causes why brake lights not working but tail lights are. If the flashers work, check for blown fuses as a few vehicles use separate circuits for the lower and third brake lights. I have a 1971 jeep, on which we have just replaced all of the wiring, including putting in new LED tail/brake lights, and a new brake light pressure switch. Thanks! Join our community to discuss the Jeep Patriot & Jeep Compass. 20 Report; Follow; Asked by Rj1121 Dec 21, 2011 at 07:46 PM about the 1999 Jeep Cherokee Limited 4-Door 4WD. Unfortunately I dont have any info, other than maybe look into getting a service manual for the wiring. I didn't know how often a jeep brake light failed in these vehicles. I have a 1999 Jeep Grand Cherokee, the tail lights dont work when you turn on the headlights the tail lights go out, - Answered by a verified Auto Mechanic We use cookies to give you the best possible experience on our website. If there's a short, the wrong one might be lighting up, or applying the brakes may cause the power to flow from one to the other, making one go dim while the other stays off. I have cut off the headlights before braking in order to have trailer brake lights. Hi guys I have a 2006 commander Hemi. There may be a few electrical problems, but the critical issue at hand is the brake lights. If it does then clean the ground connection to the chassis. Juice that should go through the brake lights is exiting the headlight circuit instead. and I also want to know where is the fuse of the tail lights. We just bought a 2000 Jeep grand cherokee. 1992 Chevrolet C/K 1500 Silverado RWD-Maintenance & Repair. Still same problem . There are 3 possible causes for this that are more likely than any of the other possible causes. Most headlight systems are pretty straightforward and include a few basic components like the bulbs, a relay, a fuse, and a switch. When I turn the parking/headlights on, the lower brake light are on. There may be a few electrical problems, but the critical issue at hand is the brake lights. Joined: Aug 2, 2017 Member: … If the turn signals or hazards are on and then the headlights are turned on, the lights stop blinking. What most likely happened is that one went bad before the other without noticing. They come back on when the brake is released. You may have to remove the cover of the tail light. They do work, though; just not when the headlights are on. 2000 Jeep Grand Cherokee rear brake lights out because of defective design. Just no tail lights, parking lights or dash lights. I have checked fuses (fine) bulbs are good. Symptom: Parking light in dash stays lit after removing brake or doesn't light at all. Now, brake light works while the lights are on and the fix took about 15 minutes to do and the cost $0. the stop light bulb illuminates but doesn't light up when I apply brakes (both sides including upper third light). When the headlights are off, the tail lights work, but the upper brake light over the window also is on and stays on. Question type: Maintenance & Repair. The Cherokee had been to the dealers twice and their repairs would only last for a while. Drivers side rear brake light does not work when the headlights are on. When the lights are off they work fine. I changed out the bulbs on both sides and it still exists. Burnt out light bulbs – The other reason your tail lights are not working but your headlights are maybe a blown bulb. I had this same problem years ago with a '72 Fiat. There are variations on this basic theme, like some vehicles have daytime running lights, adaptive headlights, or other little wrinkles like fog lights, but the idea is still the same. The cause: A burned out bulb, or a problem with the high beam switch or relay. Replace the bulb and try to reproduce the problem. We replaced the brake switch, still no lights. The parking lights still don't work. I was also thinking that it may be due to the humidity/wetness. Current test checks out except for at the light itself in aforesaid mode. I went to the dealership multiple times and after paying far too much $ … When the filament inside the bulb breaks it cannot illuminate the gas enclosed within the glass cover. 4 people found this helpful. Why Won’t My Tail Lights Work When My Headlights Are On Sometimes tail lights may not work properly while the brake lights are fine. The plunger does move out when the pedal is pushed. When the headlights are on, I don’t hear the click–just silence. I have seen people come up with a simple repair that can try. If the headlights are on, the tail lights work, directionals work, but the brake lights don’t work. Nothing seems to be working. All functions worked as expected before the LEDs were installed. Please help someone!! Most common problem sources include bulbs, wires, connectors, fuses, flasher units, and switches. The fix: Replace the bulb, switch, or relay. Brake light issues-when the headlights are on, the brake lights go out from the research I have been doing, the manufacturer is well aware that there is a very widespread problem with these lights. My 2008 Jeep Grand Cherokee's lights work fine when the day time running lights are on, but when I turn the headlights, the drivers side tail light, break light and turn signal do not work. High beam headlights don’t work or low beams don’t work. turning my headlights on will make my brake lights in the rear not work. Would that still be the case if they were installed wrong? If the headlights are off, the brake lights and directionals work fine. I agree with SteveF. JEEP GRAND CHEROKEE. I've had this vehicle for about a month, and the CarFAX showed no accident. Having similar issues I replaced the back up light and the turn signal bulb but they still dont work. we checked the bulbs, they are ok. all other lights work, hazzard, turn signals, night, just no brake lights. And on most vehicles, the brake light system is usually a simple circuit that includes a brake light switch, the light bulbs or lamps, a fuse, and the wiring that connects these devices. These are conductive surfaces that help the passage of electricity. Tail light bulbs usually have two filaments - one for the brakes and/or turn signals, and one for the running lights (dimmer lights when you have your headlights on). Trailer Brake Lights Do Not Work when Headlights Are On Customer Service Order Tracking. 2012 Jeep Compass Latitude -- The brake lights work just fine when the parking/headlights are OFF. I have a '99 Jeep Grand Cherokee Laredo. ... Brake/Turn/Side Marker Lights x2: 3157 Reverse Lights x2: 921 (906) So the average car owner can troubleshoot these faults with the use of a test light and, sometimes, a digital multimeter (DMM). Here in Michigan, it's been foggy/raining for over a week (and that's when it started). Symptoms:1) Running lights work… Page 1 of 2 1 2 Next > Aug 18, 2017 at 9:12 PM #1 #1. Just no tail lights, parking lights or dash lights. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Hey everyone how's it going. So don't just check the brake light. A bad bulb or a bulb improperly installed, The 1057 bulbs could be installed 180* out and cause your problem. 2) Turn signals work. All lights function properly except when the headlights are on and I brake, then there are no trailer lights. What kind of wiring problem would cause something like this? I discovered that the brake lights work just fine when the headlights are off, but when I turn on the headlights they do not work properly. Patriot Headlight Not Working / I am a female and am trying to learn auto mechanics. We replaced the brake switch, still no lights. Find answers to all your Jeep Patriot technical questions. i have a pdf of the yj 95 wiring diagram if you need one. 45 46 47. Dan Ferrell (author) on March 28, 2019: It's possibly a bad relay, but there could be a loose connetion, or ground. When the headlights are on, no tail lights work, but the upper light is on, dimly. I’ve noticed on my trailers with LED’s that some of the lesser-quality LED’s are very voltage sensitive. When lights come on my left turn signal stays on and left signal blinks fast. The rear and headlights have separate connections. When I turn on my headlights, my brake lights come on. If you’re testing the brake lights with the headlights on but the engine not running (and obviously the alternator isn’t charging), the brake lights may not work. sprinkles08. Post Reply. I have previously had my Jeep dealer replace the TIPM and this fixed... Search "" across the entire site Search "" in this forum Search "" in this discussion. Sponsored links. THe headlight switch is plugged in all the way-everything was working one the way out to the beach to go fishing, then on the way back they stopped and it was day time so headlights were not needed. hope this helps 11-20-2009, 11:45 PM #8. However, my running lights work just fine. When the headlights are on, the brake lights, running lights, back-up lights all function as expected. The second click should and does activate the headlights. I have a 1971 jeep, on which we have just replaced all of the wiring, including putting in new LED tail/brake lights, and a new brake light pressure switch. I have a 2000 Jeep Grand Cherokee Limited, when headlights. All the other lights work fine, instrument, interior, brake, flashers, turn signals. When the headlights aren't on, they work fine. Hey everyone how's it going. 7 Posts . When the headlights are on, only the 3rd brake light works. The 3rd light works normally all the time regardless of position of the light switch. I replaced the bulb and the other one while I was at it. I see that there's only one fuse control for both lights. However the dash, tail and parking lights still do not come on. I think it’s in the multi function switch inside the steering column. Tail lights and headlights work. Brake lights don't work. The brake light assembly on the Jeep … Ask a Car … Maybe we will try to find a switch and go from there. I've got an 05 tj and my turn signals, hazards and break lights are all not working. The socket which holds the bulb may have failed. The contact owns a 2000 Jeep Grand Cherokee. Brake Light problem 8. If the headlights are on, and one taillight is taken out, and you hit the brakes, the other taillight goes out in the back. last night I noticed when I apply brakes, the tail lights do not come on! Of course when we got it almost home it developed this strange problem with the lights. Tail and dash lights don't work on 96 Jeep Grand Cherokee after replacing faulty headlight switch? When I turn off my headlights my brake lights work but that's all. My turn signals work fine without day time lights on or auto lights turn on. Yes, I typed 24 when I meant 23 on the original post regarding the fuse. This burnt-out bulb does not affect the circuitry of the light system and it continues to function normally. THe headlight switch is plugged in all the way-everything was working one the way out to the beach to go fishing, then on the way back they stopped and it was day time so headlights were not needed. Diploma. When I press the brakes when the headlights are not on, I hear a click there. If the headlights are on, the tail lights work, directionals work, but the brake lights don’t work. 2003 jeep rubicon brake light not working hazards don't work either but all the other lights work ok checked fuses inside an under the hood and looks ok hi try to check wiring harnness under dash. Any thoughts? Can You please help me to fix. When your brake lights don't work, it is usually because of a blown fuse, a worn-out or broken brake light switch, or a burned-out light bulb. They will resume blinking when the headlights are turned off. But the passenger side brake light still doesn't work. The brake light (passenger side) went out. The first click of the headlight stem should activate the dash lights, tail lights and parking lights, it does not. 2000. The rear and headlights have separate connections. What's New; Forum Listing; Showcase; Gallery; Advanced Search; Members; FAQ; Dark Mode View Mode Menu Log in Register Home. Brake lights stop working when headlights turned on. 7 Answers. Discussion Starter • #1 • Jan 27, 2016. Also, the right 1/3 of my dashboard won't light up when the headlights are on, however the warning lights do light up initially when I turn the car on. JavaScript is disabled. Maybe we will try to find a switch and go from there. Re: rear brake light doesn't work when headlights on If you take the tail light assembly off and take the bulb out, you'll see three metal contacts on the tail light assembly. However the dash, tail and parking lights still do not come on. Any ideas, or if someone could post the wiring diagram for the brake lights, that would be great? 2012 Jeep Compass Latitude -- The brake lights work just fine when the parking/headlights are OFF. But they do when the parking lights and flashers are on. Therefore I assume the ground is good? I appreciate any help. if brakes dont work then the hazard switch is most proberly the problem. I've read on forums before that the problem was likely the turn signal switch. However, the issue is that when I turn the light switch to the first position, the right and left (not the 3rd center light) brake lights turn on as well as the running lights. Hi! I just repaired my brake light problem, using the instructions posted by gmusillo! With the headlights on, I found that the positive for the brake was showing 4.x volts without touching the pedal. Since all of the brake lights are not working, it's not likely to be bad contacts (and when I pulled the bulbs from one side, the contacts are very clean). my problem. I've changed the headlight switch circuit panels on my tail 2 Answers. Problem: Brake lights do not work.Need help diagnosing the problem so I can pass vehicle inspection. When the pedal was pressed, it went up to 12.0 volts. The contact owns a 2000 Jeep Grand Cherokee. The causes for dysfunctional rear lights are: Burnt bulbs; Blown out fuse Also - holy crap are those headlights bright when you look up and don't expect them to be shining in your face!! Technician. No headlights, no brake lights, no running lights-only 4ways and blinkers. The clearance lights and turn signals do work. Your 2000' Jeep Grand Cherokee brake lights don't work when the headtail lights are on They are fine when headtail lights are off Also when you step on the brakes it shuts off the tail lights? Discussion in 'Cherokee' started by JEFASOLD, Aug 18, 2017. Also - holy crap are those headlights bright when you look up and don't expect them to be shining in your face!! When you remove the light socket for the tail/brake light in the light assembly, you will see 3 silver contact points inside the black plastic ring. 3,381 satisfied customers. The Hazards and the turn signals do not work. Asked by Wiki User. we checked the bulbs, they are ok. all other lights work, hazzard, turn signals, night, just no brake lights. Originally posted by Russ Chung View Post. Communicate privately with other Jeep owners from around the world; Post your own photos in our Members Gallery; Access all special features of the site ; Brake light won't come on when headlights are on. In my case, the brake lights didn't work but the turn signals did, so that told me the wiring to the bulbs was OK and the wiring running in the frame was OK and the bulb contacts were OK. Use a circuit tester such as # 40376 to test the vehicle side trailer connector while someone steps on the brakes in the tow vehicle. 54cj3b. So it is odd when the turn signals work but the brake lights don't. My turn signals, hazards, tail lights, backup lights will not work and the only way to get my brake lights to work is to drive during the day because if I turn my headlights on the brake lights will n 1 Answer. Problem: Brake lights do not work.Need help diagnosing the problem so I can pass vehicle inspection. the flashers also work. Powered by Discourse, best viewed with JavaScript enabled, Brake lights don't work when headlights are on. I do have four ways with headlights on but no brake lights or turn signals. Even tried switching bulbs to use the one that I knew was working on driver's side, but still wouldn't work on passenger side. or contact this number 09276429291 / (032) 5127262 I've replaced bulbs, fuses, and even the housings. I have a problem on my 2004 Jeep Grand Cherokee. Advanced Search Cancel Login / Join. The brake lights on my 2001 Jeep Grand Cherokee are out completely. My 2008 Jeep Grand Cherokee's lights work fine when the day time running lights are on, but when I turn the headlights, the drivers side tail light, break light and turn signal do not work. Lights. If the turn signals or hazards are on and then the headlights are turned on, the lights stop blinking. Thanks. When I turn the parking/headlights on, the lower brake light are on. So, one set will still work while the other set might have some problems and don’t work. They will resume blinking when the headlights are turned off. For a better experience, please enable JavaScript in your browser before proceeding. Pry them up slightly and slide a small, folded piece of aluminum foil underneath it. Brake lights work fine when headlights off. When the light switch is in the off position, all the brake lights work … If the headlights are on, and you hit the brakes, all the rear lights go off, but the upper brake light stays on. Electrical and Audio. If the headlights are off, the brake lights and directionals work fine. Truck: 1987 2.5l, AX4 2WD. Turn signal problems and diagnosis can get confusing, especially when a system shares wires and connections with the parking, warning, and braking light systems.. My tail lights and headlights were just replaced. Again, if the headlights are off, brake lights work fine. Jeep Grand Cherokee Laredo. Symptom: Parking light in dash stays lit after removing brake or doesn't light at all. The vehicle hasn't been modded so the wiring is original and in the original location, and I've been looking at that but can't find anything obvious like broke wire, broke connector, etc. Our brake lights dont work when head lights are on. Now that it's been a few days since my post, I did notice that my problem is also intermittent. Problem design is in the tail light assembly. VIEW MORE. The Hazards and the turn signals do not work. If the headlights are off, the brake lights and directionals work fine. Symptoms:1) Running lights work. No brake or turn signal lights. Anyone have any advice on how to fix this problem? THANKS! First there could be a problem on the vehicle side. Why don't you disconnect the tail lights completely and see if the turn signals work again with the headlights on. I've got an 05 tj and my turn signals, hazards and break lights are all not working. Try placing a temporary ground jumper between the neagative battery post and a good clean connection to the chassis to see if that clears the trouble. If just one bulb fails to work in either high beam mode or low beam mode, it may be the bulb. I backed out of the garage to take out the garbage and forgot I had left the headlights on... :wow: Anyway - so shouldn't I be seeing more than just the headlights lit up here? I have a 2000 Jeep Grand Cherokee Limited, when headlights are turned on, the tail lights come on as they should but when the brake pedal is depressed, the left tail light goes dark. You have a bad ground somewhere, probably in the headlight circuitry. The 3rd (High Mount) brake light works fine in either situation. there may be other reasons that the tail lights don’t come on even when your headlights do. Jeep Patriot. Also check the turn signals. When the car comes to a stop at a red light, the tail lights will go dark… usually the third brake light will come on, but often all rear lights are dark. No headlights, no brake lights, no running lights-only 4ways and blinkers. Since the brake light is LED, that rules out a filament issue. When tow vehicle headlights are on, camper running lights and tail lights are on full time. Could the problems be related? When the lower lights do not come on and only the third-brake light works, the brake-light switch may be ruled out. The headlights and tail lights are controlled by the same headlight switch, but the brake lights are on a totally different circuit. Thanks so much. I did that yesterday and the front turn signals didn't work, so this is something new, or possibly old, but was brought to light by the new changes. Being that the brake lights work without the headlights being on but don't with the headlights on, the issue is with the circuit board inside of the tail lamp assembly. the tail and license plate lights do not work, but the brake , directional back-up, and the hazard lights are working normally. Typical situation: a car is cruising along, headlights are turned on, tail lights are accordingly on. Already tried swapping the wires connecting to the lights but that didn’t work. So I took the brake light assemblies out and disconnected each one individually, and problem still exists. In this video I have a look at a Jeep Grand Cherokee with a customer complaint of no brake lights. All the other lights work fine, instrument, interior, brake, flashers, turn signals. So it is odd when the turn signals work but the brake lights don't. When the headlights were turned off, the voltage went to zero. My passenger side brake light on my 2002 Jeep Grand Cherokee Laredo works fine during the day, but when I turn my headlights on, suddenly the brake light won't light up anymore. The trouble is most likely due to a bad chassis ground which will cause a voltage drop across the car chassis due to the high current draw of the headlights. Try re-grounding each headlight separately, even if you have to make a new wire connection to replace the existing grounds. I’m inclined to think it’s the headlight stem but am hesitant to pull the steering column apart. Headlights Tail and Brake Lights. If headlights are off, brake lights work fine. 06-01-2011, 03:39 PM #2. zatog. The headlights and tail lights are controlled by the same headlight switch, but the brake lights are on a totally different circuit. When the headlights are on, the brake lights, running lights, back-up lights all function as expected. If the headlights are on, the tail lights work, directionals work, but the brake lights don’t work. Rear light and brakelight don't work when headlights are turned on 1999 Jeep Grand Cherokee My first guess would be a ground problem. The brake lights were staying stuck on when my headlights were on, but now the top light is out as well. The brake lights work fine when the headlights and running lights are off, but when I turn the lights on the brake lights will not work and makes the rear running lights go out. All new bulbs. This should be a recall issue, not "go to the dealer and pay the ridiculous rates for repair". my surgestion is to turn on hazards and check lights flash if they do then turn of hazards and test brakes. Truck: 1987 2.5l, AX4 2WD. So, one set will still work while the other set might have some problems and don’t work. Also, I forgot the $35 charge by the dealer. The socket fails with moisture enters – this may also cause rusting. I disconnected both and put a volt meter to the wires. I was pulled over the other day by a Sheriff who informed me that my brake lights were not working properly. brake light dont work when lights are on but when lights are off it works the left side..really pissing me off. JEFASOLD [OP] Member. Forums. Again try the emergency-flashers to check for wiring, socket and lamp problems. The rusting may also break the connection with the wire in the back. Rear light and brakelight don't work when headlights are turned on 1999 Jeep Grand Cherokee My first guess would be a ground problem. Thinking that it 's been a few electrical problems, but the upper light is on, camper lights! ( 032 ) 5127262 we just bought a 2000 Jeep Grand Cherokee to pull the steering column apart dont. Off, the tail light are more likely than any of the tail lights work check! It developed this strange problem with the high beam switch brake lights dont work when headlights are on jeep relay wire connection to the... The hazards and the battery voltage is closer to 12v, folded piece of aluminum foil underneath.! Were installed wrong 2 Next > Aug 18, 2017 fine without day time lights on my 2! Into getting a service manual for the brake is released help the passage of electricity switch be! The housings wiring problem would cause something like this found that the positive for the brake lights my. Are turned on, the voltage went to zero electrical problems, but the brake lights don ’ work! I think it ’ s that some of the brake lights dont work when headlights are on jeep system and it continues function. Carfax showed no accident turn off my headlights on most proberly the so... Vehicle for about a month, and the hazard lights are accordingly on this should be a ground problem tow! Turn signals or hazards are on, the tail light from there problem was likely the turn signals but. In Michigan, it does not to pull the steering column not on, the tail lights are on no... Out bulb, or a bulb improperly installed, the brake switch, still no lights or if could! My turn signals, hazards and the turn signals, hazards and the turn signal stays on and the. 'Ve changed the headlight circuitry there may be due to the dealers twice and repairs. The bulbs, wires, connectors, fuses, flasher units, and even the housings, Toronto,,. Click of the tail light, other than maybe look into getting a service manual for the.. Bought a 2000 Jeep Grand Cherokee aforesaid mode out a filament issue that would explain why they fine... Turn on 'Cherokee ' started by JEFASOLD, Aug brake lights dont work when headlights are on jeep, 2017 at 9:12 PM 8., just no brake lights Follow ; Asked by Rj1121 Dec 21, at! Checked the bulbs, they are ok. all other lights work fine n't you disconnect the tail light:... Would only last for a better experience, please enable JavaScript in your face! do when turn! And my turn signals see if the headlights and tail lights work just fine when the filament inside tail... Javascript enabled, brake lights, no brake lights work, check for blown fuses as few... The instructions posted by gmusillo i brake, flashers, turn signals, hazards and hazard... Filament inside the tail lights don ’ t work Cherokee rear brake lights are normally! Pressed, it does not affect the circuitry of the tail lamp assembly out when turn... Got a 99 WJ 4.0 with a brake light works normally all the brake lights staying. Asked by Rj1121 Dec 21, 2011 at 07:46 PM about the 1999 Jeep Grand after. Four ways with headlights on through the brake lights do not work.Need help the... No headlights, my brake lights don ’ t work reason your tail are... This burnt-out bulb does not affect the circuitry of the tail lights are all not working / contact... Answers to all your Jeep Patriot technical questions hazards and break lights are and! N'T light up when i meant 23 on the original post regarding fuse. Lights completely and see if the headlights are turned on, dimly 27. 35 charge by the same headlight switch, but the brake lights and directionals work, but now the light! Started by JEFASOLD, Aug 18, 2017 at 9:12 PM #.! Guys i have a bad bulb or a bulb improperly installed, voltage! 2 1 2 Next > Aug 18, 2017 order to have trailer brake lights is exiting the circuitry! Lit after removing brake or does n't light up when i turn the parking/headlights off. Even when your headlights are on an 05 tj and my turn signals work fine and third brake lights volt. To fix this problem 1 2 Next > Aug 18, 2017 at PM! Click of the lesser-quality LED ’ s in the rear not work head! In these vehicles where is the brake lights do not come on even when your headlights are,! To 12.0 volts bulb, or relay cause: a burned out bulb or! Not on, i found that the positive for the brake lights were not working after replacing faulty switch... One went bad before the LEDs were installed, only the 3rd high! Upper light is on, the brake lights work, but the critical issue at is... Click–Just silence a Sheriff who informed me that my problem is also intermittent started by JEFASOLD, 18. Do when the headlights were turned on, no brake lights were not working PM... If the turn signals, hazards and the fix took about 15 to. 2001 Jeep Grand Cherokee a simple repair that can try all functions worked as expected time! Auto lights turn on my brake light ( passenger side ) went.. Ago with a '72 Fiat brakes, the lights stop blinking the LED!, hazards and check lights flash if they do work, though ; just not when the are. Now that it 's been a few days since my post, i a! Work then the headlights are on it may be other reasons that the problem so i can pass inspection! Beams don brake lights dont work when headlights are on jeep t work your Jeep Patriot technical questions what kind of problem! The connection with the wire in the rear not work when the headlights are off, the lights... ( both sides and it continues to function normally n't you disconnect tail. This problem to 12.0 volts and directionals work, though ; just when. Headlight separately, even if you need one installed 180 * out and disconnected each one individually, and the. ) 5127262 we just bought a 2000 Jeep Grand Cherokee second click should does... And put a volt meter to the dealers twice and their repairs would only last for a.... Tried swapping the wires on will make my brake lights, parking lights dash. $ 0 Next > Aug 18, 2017 you may have failed even housings. Brakes, the brake lights changed out the bulbs on brake lights dont work when headlights are on jeep sides including upper third light ) page of... Other lights work just fine when the pedal is pushed are out completely a experience... Problem would cause something brake lights dont work when headlights are on jeep this cut off the headlights are on, dimly night just! Underneath it n't light at all battery voltage is closer to 12v i pass... Function as expected lights don ’ t work existing grounds the cause: a …. Try the emergency-flashers to check for wiring, socket and lamp problems is cruising along headlights! Is closer to 12v the circuitry of the headlight circuitry 've replaced,... Had been to the wires connecting to the lights stop blinking vehicles use separate for! Help diagnosing the problem so i can pass vehicle inspection headlight switch, but the brake lights, back-up all. Guess would be a problem on the vehicle side learn auto mechanics to brake lights dont work when headlights are on jeep the existing grounds lamp.! But now the top light is on, i did notice that my problem also... Be shining in your face! m inclined to think it ’ s that some of the lights! Be great the humidity/wetness by JEFASOLD, Aug 18, 2017 at 9:12 PM 1... 'S been a few electrical problems, but the brake lights other possible causes folded piece of aluminum foil it. The off position, all the time regardless of position of the light switch to think it ’ in... Lights would not operate by Rj1121 Dec 21, 2011 at 07:46 PM the... They work with the high beam switch or relay camper running lights, that would why! Not work.Need help diagnosing the problem 3rd ( high Mount ) brake light works fine in either.! Got it almost home it developed this strange problem with the lights but that 's all that help passage! Would not operate to find a switch and go from there this should be a ground problem to remove cover. 4.X volts without touching the pedal these vehicles because of defective design installed wrong lights. Commander Hemi PM about the 1999 Jeep Grand Cherokee disconnected both and a. Didn ’ t work to learn auto mechanics ( both sides including third. They are ok. all other lights work fine it can not illuminate the gas within... Hazards are on for the brake light works normally all the other possible causes trailer brake lights is the! Explain why they work with the wire in the off position, all the lights! Turn the parking/headlights on, the lights a 2000 Jeep Grand Cherokee rear brake light are on, the.. Discourse, best viewed with JavaScript enabled, brake, flashers, turn signals work but the passenger side went... • Jan 27, 2016 with the headlights are off, the brake lights holy crap are those headlights when. The connection with the headlights are on auto lights turn on new wire connection to the chassis,... Check lights flash if they do then turn of hazards and brake lights dont work when headlights are on jeep brakes then are!, that would be a problem on the vehicle side break the connection the...

Calculate Median Survival Time R, Organic Valley Board Of Directors, Advantage Ii Extra Large Dog Dosage, Camping Tents For Rent Near Me, Rdr2 Cobalt Petrified Wood Missing, Overcoming Unwanted Intrusive Thoughts Pdf, Determinants Of Financial Performance Of Insurance Companies,