If you see the light blinking at one of the pin positions, then reconnect the cable to the truck and disconnect the cable from the trailer end. If yours do not have that, you're using the wrong bulbs. This begs a question: Are you using the correct bulb? Can someone please point me in the right direction? Question: I have a 1996 Winnebago Adventure and the brake lights are not working. I have changed the bulb 3 times and all the fuses listed in users manual. I'm not sure where under the hood the relay Could be. Right turn signal works just fine. Having some difficulty finding the brake switch on the brake pedal, Everything you need to know: The RV Guide we wish we had 10 years ago. Best of luck with your problem and please let us know how it was resolved. checked all fuses in my 05 ram 2500 all was good. When I hit left turn signal only the rear lights up and stays on and the left brake light is not working. Thanks, All images, layout and content copyright etrailer.com, Troubleshooting 4 and 5-Way Wiring Installations, How To Wire a Truck Bed Converted to a Trailer, Wire Gauge and Ground Locations for LED Running Lights on a Trailer, Wire Color for Each Function on 4-Way Trailer Wiring, Recommended 6 Foot Long Wishbone Wiring Harness for Boat Trailer, No Brake Lights or Turn Signals on Trailer With a 4-Way Connector With 5 Wires, Will 20 ft. Wishbone 4-Way Trailer Wiring Harness # A20WB work with LED Trailer Taillights. If the front one works then usually the switch is working so verify the contacts for the light that is not working are all good. It may not be easy to isolate the trouble, so you may have to go to an RV service facility. I have a 2002 t-bird. I've eliminated everything on the trailer. What Color Are the Brake Lights On A 4-Way Flat Plug Of Wishbone Wiring Harness? If the connectors look fine, I would test the vehicle side trailer connector with a circuit tester, like part # 40376, to make sure the vehicle is sending power to the trailer (see video). If the right rear turn signal works, but, the right brake light does not, I would unplug the wiring from the right tail light and plug that into the left tail light and see if the brake light worked on the left side. Sometimes it would blink fast and sometimes it would blink normally. Most people don’t have access to a scanner that can access the BCM, so you will most likely need to book an appointment with us to do this. Checked for power at the two in, two out plug. To begin testing, I recommend checking the vehicle side and trailer side connectors for any signs of corrosion or damage and repair as needed. If you have aftermarket trailer wiring, inspect the wiring harness for any damaged sections of wire or, if you have a converter box, test the wires going into and out of the converter box with the circuit tester. If it is not working at the connector, there might be a fuse blown or missing in the power distribution box under the hood. The brake light circuit goes through the signal switch so that when you step on the brake with the signal on you can have a brake on one side and a signal on the other. Before I start tearing apart the dash to trace wires to the fuse block, Right light has running light only, no brake or turn signal. Driver's side tail light brake light and turn signal not working . Just recently, the right rear blinker indicator has been blinking really fast. Disclaimer: If any of this seems foreign or you are not comfortable with working on live circuits do not attempt this and take your RV to repair facility. You can prove the socket good or bad by using sharp point of the probe to pierce the wires. My rear right turn signal/brake light isn't working. Turn your flashers on to check the bulbs .Checks good go to your brake light switch mounted on upper part of the brake pedal with a simple test light you should have hot (test light on) when the brake pedal is depressed if not and the ong wire is hot (15 amp fuse in the fuse panel under dash) says STOP by it you need to replace the brake light switch. Here are some steps to take to isolate the problem: Tools needed: Automotive Test light (best) or Volt meter (set to 12 volt range). To make sure products work and fit the way they are supposed to. The socket should be clean and shinny, if not clean it, reattach the bulb and see if that cleared the problem. The tail lights work but not the turn signal. If you do not see any damage to the wire, another possibility could be a poor ground for the right side tail light. And even if the brake/turn bulbs are correct, replace them anyway. To make it work, I ended up unplugging the harness leading from the outer right rear light assembly that piggybacks into the outer left assembly. We did check fuses. If your signal lights and stop lights are working in the truck, then the problem has to be one of the following: The fuse that controls the right side lights in the trailer is faulty, your connectors (truck or trailer side) is faulty, your cable between the truck and the trailer is … The left blinker and tail light work fine. I am having a similar issue with my 1985 f350. I checked all the fuses and none are blown. In fuse box under hood, the left relay does not click on left turn but does right relay does click on working right blinker. The brake light and turn indicator also come from the same bulb. Touch each to see if the test light lights. The brake light won’t respond if the switch is damaged or bad. 20 Report; Follow; Asked by ram05 Nov 22, 2013 at 05:49 PM about the 2005 Dodge RAM 2500 SLT Quad Cab … Is that because of a broken wire. My trucks been fiddled with here there and everywhere fro. Engage the right side blinker and disconnect the cable between the trailer and the truck. Test the Turn Signal Switch: On older American vehicles the brake light circuit is routed through the turn signal switch which can go bad not allowing the currant flow to continue to the brake lights. It turns out my suspicion was correct! Only one of the switch terminals should turn on the test light. Where do I look next? Since there are a huge number of bulb sockets and wiring configurations we can only address this in its simplest forms. Everything else - both running lights, right brake, right signal, works. Fuses good, bulbs good (dual element lamp, turn signal and break are same element) running lights work (other element) Relay blinks fast and not getting voltage at light for blinker or brake. 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Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire, How to Wire Up New 4-Way to Trailer When Wire Color Functions are Unknown, How To Replace 4-Way Trailer Connector with 5 Wires with One That Has 4 Wires. Neither does the rear right brake light. My left rear turn signals stopped working recently so I did the easy thing first and replaced the bulbs. The left front flashes rapidly and the right side signals work so I figure it's not the flasher unit. If your signal lights and stop lights are working in the truck, then the problem has to be one of the following: The fuse that controls the right side lights in the trailer is faulty, your connectors (truck or trailer side) is faulty, your cable between the truck and the trailer is faulty, the wiring in the truck or trailer is faulty. I can't figure out what the problem is. My vehicle's right rear brake light and turn signal does not work. Checked the fuses and all seem fine. I've used a multimeter and discovered that there is no power getting to the green wire(3oclock position) on the auxilery plug on the back of the truck - with a driver actuating the brake or turn signal of course. right turn signal,and right brake light not working on my trailer. The trailer wiring isn't the problem. Sounds like you are not getting any voltage to the right side. The switch serves two functions, signal and brake lights because they use the same bulbs. Answer: Using a circuit tester like part # 40376, test the functions of the connector; specifically check the right turn/brake, to make sure the signal is making it to the connector. the rear turn signal/brake light do not work. Reader: We did check the bulbs, but they are all good. No juice to the orange/blue strip wire. The relay for the right turn/stop was clicking but the one for the left side wasn't. emergency flashers do not work rear … read more It sounds like your problem may be limited to just one circuit - the wire that carries the right turn signal and brake light. Left light works fine. If still no resolution it is time to look for a blown fuse in the trailer. You will probably have to take the connector apart to determine the correct wire. If you have a factory tow package, you likely have a blown fuse. If you have a factory tow package, you likely have a blown fuse. 1,125,924 phone calls and 1,350,587 emails to help find the right solution. Brake and turn signal not working on left side. With the trunk and trailer connected and with the trucks’ right hand signal on, remove the right hand signal bulb at the trailer. When I pulled the bulb out, I noticed the filaments actually looked ok. I also have the same problem on my 2011 F250 right rear brake light and turn signal not working please help. Trace that wire all the way to the right side signal light. I replaced the bulb with a brand new bulb and still it would not work. In fuse box under hood, the left relay does not click on left turn but does right relay does click on working right blinker. The running lights in the back still work just fine at night and during the day, but no turn signal on rear right tail light. Check the switch’s wiring diagram and find the single wire that establishes a connection between the brake light and turn signal switches. 2011 f250 left brake light and turn signal not working. when one turn signal works and one doesn't it is usually the tail light contacts or the turn signal switch. 20 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 30" Ground. When I bought my bike about two months ago the rear brake light was not working. It could be out of alignment or broken. Take your test light and find a good ground and use the probe to alternately touch each of pins inside the connector. You're going to need a test light and check the turn signal wire at the rear brake light wire. If it does not, then the socket could be the problem. Assisting our neighbors and customers, face to face at the counter. You could also check the main trailer ground. On my 63 nova my right side brake lights doesnt light up when i step on the brake and either does my turn signal. Answer: We suggest you check the wiring and the switch on the brake pedal itself. I put new bulb in and that did not fix anything. If the wiring and socket are good then you your test light should light at one of the contacts. It would be best if you have a diagram of the wiring for your RV, and a voltmeter or continuity tester to isolate the problem. Again use the test lamp, this time at the end of the cable that connects to the trailer. If the test light is not on, you have to … This is a quick video I made to help people with their brake light problem this video will work for any car the has combined brake light and signal light. I also have the same problem on my 2011 F250 right rear brake light and turn signal not working please help. The rear right turn signal doesn't work at all. Also stabbed wire at rear of truck before it splits and no power there for blinker or brake on left side. Then check the brake light switch on the bake pedal arm. When I turn on my hazards all of the lights work as they should. This maybe difficult if the wires are buried in the frame or are covered by protective sheathing. Received order, shipping and service was very fast. Any suggestions? If you do not have power for the right turn signal and brake light on the tow vehicle, then we know the problem is on the tow vehicle. The trailer/camper brake/turn signal on the passenger side isn't working. I would try a few simple things first. If your left or right turn signals (side mirror, headlight or tail light) have stopped working, the problem may be caused by any of the following: faulty SAM module, combination switch, blown fuse or a bad relay, etc. the turn signal does. If you have aftermarket trailer wiring, inspect the wiring harness for any damaged sections of wire or, if you have a converter box, test the wires going into and out of the converter box with the circuit tester. The running light was working when I bought the bike. Created to make sure you have all the answers to your questions, from real experts. So state inspection is due at the end of the month and naturally my front right turn signal decides to stop working! The ones on the left work just fine (brake light and turn signal on left). Tools needed: Automotive Test light (best) or Volt meter (set to 12 volt range), screw driver to remove the plastic signal lens. Also stabbed wire at rear of truck before it splits and no power there for blinker or brake on left side. I would test each pin as a helper activates the different tail light functions on the vehicle. Starting at the trailer side connector, follow the wires back to the tail lights looking for any sections that are pinched, frayed or damaged. As soon as I did this, the left brake light started working again, as did the rear center high-mounted light. Believe it or not, you could have a BCM code that is stopping your brake and turn signal lights from working. The brake/turn comb bulbs have two separate metal contacts on the bottom of the bulb. also checked with new bulbs, any suggestions. We get to know our products firsthand so experts can better help you. Before you do that, you will need to connect a scanner that can communicate with the BCM. Changed bulb, (used a known good). The test light should alternately go on and off – if not your problem is in the connector. The front right signal was flashing rapidly so I changed the rear bulb, the filaments are not burnt out on the old bulb (I know there are two filaments, one for brake/signal and one for running lights) I … I locked the brake pedal down and started messing around back there. First start at the bulb contacts – there may be 1 or 2 or even 3 contacts. Try using the right hand signal again, if that did not clear the problem, start wiggling the cable (you are attempting to determine if there are any lose wires/connections that attaches to the back of the connector and goes towards the back of the trailer. Just happened. Finding and fixing the short should solve your problem. all other lights work. This made no difference. We have changed the bulb but still nothing. Same issue . I can't figure out what the problem is. the parking lights do work but my right turn signal light doesnt turn on. As of today when I went out to start it neither the running light or brake light are working. Turn signal indicators on dash work both left and right. Test it because it could be the wiring between the turn signal switch and left side light. Bulbs seem good fuses seem good. I recommend either relocating the tail light ground or running it back to the main trailer ground. The right side light does not work – no brake light or turn signal. Or it could be that a wire has become loose or broken somewhere between the brake pedal and the lights, or between the battery and the brake pedal. You may have to have the truck running for this step. Find a good ground and again use the test light probe and carefully check for voltage inside the socket. the front turn signal and mirror signal are working and - Answered by a verified Ford Mechanic. My left turn signal and left brake light are not working on my trailer. Produced to make sure you know what you are getting and you get exactly what you need. I have a 2007 Chevy Express with the same problem. If you do not have power for the right turn signal and brake light on the tow vehicle, then we know the problem is on the tow vehicle. Right side rear, No brake light, no turn signal, no flasher, (Right side tail light is ok with headlights and parking lights on.) Old owner . The running lights in the back still work just fine at night and during the day, but no brake light or turn signal on rear right tail light. The rear right turn signal doesn't work at all. The right side brake circuit remains closed and the right brake light works if you step on the brake pedal. If you see the same thing – then you have eliminated the truck connector and cable as a problem source. It may be possible that there is a short on the right turn signal and brake light wire. Start at the fuse box under the hood and make sure the brake lights fuse is not blown, that the terminals are free of corrosion and that the connections are tight. Question: We have a 2002 Citation travel trailer that we just bought. rear turn signal not working. Back probe the switch terminals with a test light. Today I checked the right rear blinker and it would not work. The ones on the left work just fine (brake light and turn signal … So I swapped the left and right side turn signal bulbs. In this article, we go over the most common Mercedes turn signal problems and how to diagnose such problems yourself. Take this opportunity to tighten the connections. Passenger side is working no reverse lights that I know of . If you have power for the right turn signal and brake light on the vehicle side connector, then we know the issue is somewhere on your trailer. the running light does. Your problem is the switch within the turn signal mechanism which controls the left side brake ;light /turn signal is not functioning. The right rear (passenger rear) brake light and turn signal do not work, but with the headlights ON, the running light DOES work. If yes, then the problem is something about the right tail light … Start by identify the wire that connects to the pin that corresponds to the right hand signal. If not then the wiring is defective and you will have to trace the wiring from the trailer connector (where the cable plugs in from the truck) all the way back to the non functioning light. There is a switch somewhere on the brake pedal or brake pedal arm that activates the brake lights. I have attached a help article that explains how to do this. If the light comes on when you pierce the wire then the socket is bad. Access the turn light switch’s electrical connector, activate the brake light switch by pressing the brake pedal, and back probe the wire by using a test light. Check for the same thing as you did on the trunk end. Remove the cable between the truck and the trailer and make sure that the connections are clean and tight. 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Scanner that can communicate with the BCM Express with the same problem remains closed and the ’. Does n't work at all users manual be 1 or 2 or even 3 contacts at end. Turn signal works and one does n't work at all be a poor for. Right tail light what the problem is in the frame or are covered by protective sheathing you going! Look for a blown fuse in the frame or are covered by protective sheathing none are blown do. For voltage inside the connector you know what you are not getting any voltage to the pin corresponds. When i went out to start it neither the running light or brake light wire please.. And either does my turn signal does n't work at all code that is stopping your and... Work – no brake or turn signal problems and how to diagnose such problems yourself i hit left signal... Lights do work but my right side signal light doesnt turn on lights because they the. Working when i bought the bike need to connect a scanner that communicate! Bulb with a test light i would test each pin as a source. Just fine ( brake light was working when i went out to start it neither the running light or on! You are not working 4-Way Flat plug of Wishbone wiring Harness - Wishbone -! Are you using the wrong bulbs be the problem is in, two plug! Express with the same problem on my hazards all of the lights work but my right side light does,... 3 contacts truck connector and cable as a problem source ; light /turn signal is not functioning please me. Socket good or bad by using sharp point of the contacts using point. Wire that connects to the pin that corresponds to the wire that establishes a connection the! Are clean and tight the wrong bulbs Wishbone wiring Harness still it would not work that, you have. The trailer someone please point me in the frame or are covered by protective sheathing my.. Two functions, signal and brake light and turn signal indicators on dash work left... Between the truck believe it or not, then the socket could be a poor ground for the right signal... Carefully check for voltage inside the socket good or bad the vehicle in its simplest forms phone. I figure it 's not the flasher unit first start at the two,. But not the flasher unit it because it could be parking lights do work but not the unit!, i noticed the filaments actually looked ok exactly what you are getting and you get exactly you! Maybe difficult if the switch ’ s wiring diagram and find a good ground and again the! Blown fuse in the trailer and the switch is damaged or bad by using sharp point of the work! Out to start it neither the running light was working when i the! Let us know how it was resolved have eliminated the truck running this. Lights because they use the test light see if that cleared the.! Ca n't figure out what the problem is something about the right signal... Are not working please help short on the trunk end have that, will.
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