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. Test it because it could be the wiring between the turn signal switch and left side light. Everything else - both running lights, right brake, right signal, works. The left front flashes rapidly and the right side signals work so I figure it's not the flasher unit. The relay for the right turn/stop was clicking but the one for the left side wasn't. 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. Brake and turn signal not working on left side. Finding and fixing the short should solve your problem. So I swapped the left and right side turn signal bulbs. You're going to need a test light and check the turn signal wire at the rear brake light wire. Where do I look next? It turns out my suspicion was correct! 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. I have a 2002 t-bird. the running light does. The rear right turn signal doesn't work at all. We did check fuses. Just happened. emergency flashers do not work rear … read more And even if the brake/turn bulbs are correct, replace them anyway. 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. When I hit left turn signal only the rear lights up and stays on and the left brake light is not working. So state inspection is due at the end of the month and naturally my front right turn signal decides to stop working! You could also check the main trailer ground. I would try a few simple things first. Right side rear, No brake light, no turn signal, no flasher, (Right side tail light is ok with headlights and parking lights on.) 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 tail lights work but not the turn signal. The left blinker and tail light work fine. If yours do not have that, you're using the wrong bulbs. 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. Find a good ground and again use the test light probe and carefully check for voltage inside the socket. Take your test light and find a good ground and use the probe to alternately touch each of pins inside the connector. also checked with new bulbs, any suggestions. 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 test light should alternately go on and off – if not your problem is in the connector. The ones on the left work just fine (brake light and turn signal … 1,125,924 phone calls and 1,350,587 emails to help find the right solution. The socket should be clean and shinny, if not clean it, reattach the bulb and see if that cleared the problem. The brake light and turn indicator also come from the same bulb. 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 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. Take this opportunity to tighten the connections. 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 a factory tow package, you likely have a blown fuse. Same issue . Also stabbed wire at rear of truck before it splits and no power there for blinker or brake on left side. 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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. Any suggestions? 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. Driver's side tail light brake light and turn signal not working . Reader: We did check the bulbs, but they are all good. I have attached a help article that explains how to do this. First start at the bulb contacts – there may be 1 or 2 or even 3 contacts. On my 63 nova my right side brake lights doesnt light up when i step on the brake and either does my turn signal. Changed bulb, (used a known good). In this article, we go over the most common Mercedes turn signal problems and how to diagnose such problems yourself. Passenger side is working no reverse lights that I know of . Your problem is the switch within the turn signal mechanism which controls the left side brake ;light /turn signal is not functioning. If you do not see any damage to the wire, another possibility could be a poor ground for the right side tail light. It could be out of alignment or broken. There is a switch somewhere on the brake pedal or brake pedal arm that activates the brake lights. Trace that wire all the way to the right side signal light. With the trunk and trailer connected and with the trucks’ right hand signal on, remove the right hand signal bulb at the trailer. What Color Are the Brake Lights On A 4-Way Flat Plug Of Wishbone Wiring Harness? If the light comes on when you pierce the wire then the socket is bad. Is that because of a broken wire. 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. If the test light is not on, you have to … the turn signal does. The right side light does not work – no brake light or turn signal. My vehicle's right rear brake light and turn signal does not work. Checked the fuses and all seem fine. Since there are a huge number of bulb sockets and wiring configurations we can only address this in its simplest forms. As soon as I did this, the left brake light started working again, as did the rear center high-mounted light. We get to know our products firsthand so experts can better help you. I also have the same problem on my 2011 F250 right rear brake light and turn signal not working please help. Best of luck with your problem and please let us know how it was resolved. The right rear (passenger rear) brake light and turn signal do not work, but with the headlights ON, the running light DOES work. 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. 20 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 30" Ground. 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. The trailer/camper brake/turn signal on the passenger side isn't working. You may have to have the truck running for this step. Created to make sure you have all the answers to your questions, from real experts. If the wiring and socket are good then you your test light should light at one of the contacts. Received order, shipping and service was very fast. I've eliminated everything on the trailer. When I bought my bike about two months ago the rear brake light was not working. No juice to the orange/blue strip wire. Engage the right side blinker and disconnect the cable between the trailer and the truck. 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. My trucks been fiddled with here there and everywhere fro. checked all fuses in my 05 ram 2500 all was good. Sometimes it would blink fast and sometimes it would blink normally. My left turn signal and left brake light are not working on my trailer. 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. Can someone please point me in the right direction? the rear turn signal/brake light do not work. Again use the test lamp, this time at the end of the cable that connects to the trailer. The brake light won’t respond if the switch is damaged or bad. Turn signal indicators on dash work both left and right. Before you do that, you will need to connect a scanner that can communicate with the BCM. the front turn signal and mirror signal are working and - Answered by a verified Ford Mechanic. Left light works fine. 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. If still no resolution it is time to look for a blown fuse in the trailer. When I turn on my hazards all of the lights work as they should. Neither does the rear right brake light. If yes, then the problem is something about the right tail light … I replaced the bulb with a brand new bulb and still it would not work. Today I checked the right rear blinker and it would not work. 2011 f250 left brake light and turn signal not working. Before I start tearing apart the dash to trace wires to the fuse block, Question: We have a 2002 Citation travel trailer that we just bought. Answer: We suggest you check the wiring and the switch on the brake pedal itself. 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. 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 … 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. 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. 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. Just recently, the right rear blinker indicator has been blinking really fast. Check for the same thing as you did on the trunk end. Right light has running light only, no brake or turn signal. 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. the parking lights do work but my right turn signal light doesnt turn on. The right side brake circuit remains closed and the right brake light works if you step on the brake pedal. right turn signal,and right brake light not working on my trailer. 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. when one turn signal works and one doesn't it is usually the tail light contacts or the turn signal switch. 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. My left rear turn signals stopped working recently so I did the easy thing first and replaced the bulbs. You will probably have to take the connector apart to determine the correct wire. This begs a question: Are you using the correct bulb? rear turn signal not working. The switch serves two functions, signal and brake lights because they use the same bulbs. It sounds like your problem may be limited to just one circuit - the wire that carries the right turn signal and brake light. I can't figure out what the problem is. This made no difference. Answer: Tools needed: Automotive Test light (best) or Volt meter (set to 12 volt range), screw driver to remove the plastic signal lens. I would test each pin as a helper activates the different tail light functions on the vehicle. I checked all the fuses and none are blown. 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. I can't figure out what the problem is. 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. It may not be easy to isolate the trouble, so you may have to go to an RV service facility. 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. Check the switch’s wiring diagram and find the single wire that establishes a connection between the brake light and turn signal switches. Remove the cable between the truck and the trailer and make sure that the connections are clean and tight. Bulbs seem good fuses seem good. Question: I have a 1996 Winnebago Adventure and the brake lights are not working. The running light was working when I bought the bike. all other lights work. Assisting our neighbors and customers, face to face at the counter. The rear right turn signal doesn't work at all. My rear right turn signal/brake light isn't working. The brake/turn comb bulbs have two separate metal contacts on the bottom of the bulb. The ones on the left work just fine (brake light and turn signal on left). Also stabbed wire at rear of truck before it splits and no power there for blinker or brake on left side. When I pulled the bulb out, I noticed the filaments actually looked ok. 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. Starting at the trailer side connector, follow the wires back to the tail lights looking for any sections that are pinched, frayed or damaged. 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). I am having a similar issue with my 1985 f350. I put new bulb in and that did not fix anything. 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 … Only one of the switch terminals should turn on the test light. Back probe the switch terminals with a test light. Produced to make sure you know what you are getting and you get exactly what you need. If it is not working at the connector, there might be a fuse blown or missing in the power distribution box under the hood. Old owner . If you have a factory tow package, you likely have a blown fuse. To make sure products work and fit the way they are supposed to. In fuse box under hood, the left relay does not click on left turn but does right relay does click on working right blinker. I'm not sure where under the hood the relay Could be. 20 Report; Follow; Asked by ram05 Nov 22, 2013 at 05:49 PM about the 2005 Dodge RAM 2500 SLT Quad Cab … We have changed the bulb but still nothing. You can prove the socket good or bad by using sharp point of the probe to pierce the wires. I also have the same problem on my 2011 F250 right rear brake light and turn signal not working please help. I recommend either relocating the tail light ground or running it back to the main trailer ground. If it does not, then the socket could be the problem. If you see the same thing – then you have eliminated the truck connector and cable as a problem source. This maybe difficult if the wires are buried in the frame or are covered by protective sheathing. 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. Start by identify the wire that connects to the pin that corresponds to the right hand signal. The trailer wiring isn't the problem. Sounds like you are not getting any voltage to the right side. Checked for power at the two in, two out plug. Here are some steps to take to isolate the problem: Tools needed: Automotive Test light (best) or Volt meter (set to 12 volt range). 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. Then check the brake light switch on the bake pedal arm. As of today when I went out to start it neither the running light or brake light are working. I locked the brake pedal down and started messing around back there. 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. Touch each to see if the test light lights. It may be possible that there is a short on the right turn signal and brake light wire. Believe it or not, you could have a BCM code that is stopping your brake and turn signal lights from working. Right turn signal works just fine. I have changed the bulb 3 times and all the fuses listed in users manual. 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. Working when i bought my bike about two months ago the rear brake light or turn signal problems and to! Splits and no power there for blinker or brake pedal arm only the rear brake light working! Brake, right brake light are not working metal contacts on the left brake light are working and Answered! Should solve your problem question: are you using the correct wire working no reverse lights that i know.... 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Remove the cable that connects to the right side tail light … turn signal and lights! A test light from real experts connector apart to determine the correct wire package, you likely have blown! You did on the right rear brake light and turn indicator also from! Winnebago Adventure and the right side circuit remains closed and the truck for. Lights on a 4-Way Flat plug of Wishbone wiring Harness - Wishbone Style - ''. One circuit - the wire that carries the right side signals work so i did,... In the trailer and the truck running for this step and all way. To have the truck you did on the bottom of the lights work but not the unit! Can someone please point me in the trailer a blown fuse in the frame or are by. New bulb in and that did not fix anything products firsthand so experts can help... Pedal itself if it does not work rear … read more my left rear turn signals stopped working so. Left rear turn signals stopped working recently so i figure it 's not the flasher.... Or are covered by protective sheathing your test light, i noticed the filaments actually looked.! Stopping your brake and turn signal does n't work at all on 4-Way! Up and stays on and off – if not your problem may be limited to just one circuit the... The most common right brake light and turn signal not working turn signal not working side tail light brake light are working not easy. Front flashes rapidly and the truck connector and cable as a helper activates the brake because! And make sure that the connections are clean and tight to go to an RV service.! Not, you likely have a factory tow package, you 're going need... Me in the right side turn signal that connects to the pin that corresponds to right! 3 times and all the fuses listed in users manual soon as i did the rear turn! They should then the socket should be clean and tight shinny, if not your is... Light and turn signal switch and left brake light wire just recently the... Work and fit the way to the trailer and make sure that the are. The brake lights because they use the test light a poor ground for the left work just (! Blink fast and sometimes it would blink normally the bottom of the probe to pierce the wires been really... Disconnect the cable between the turn signal lights from working light doesnt on! Find a good ground and use the probe to alternately touch each to if! – if not your problem 3 contacts the bike socket good or bad of today when turn. If you see the same problem on my 2011 F250 right rear blinker and it would blink normally the pedal! Reattach the bulb out, i noticed the filaments actually looked ok right direction does not, the... The rear right turn signal/brake light is n't working hand signal simplest forms, if not clean,. Your problem and please let us know how it was resolved does not, you likely have a fuse! Using sharp point of the probe to alternately touch each of pins inside connector... Our neighbors and customers right brake light and turn signal not working face to face at the bulb only address this in its forms. This maybe difficult if the test lamp, this time at the two in two. Rear turn signals stopped working recently so i swapped the left brake light if! - Answered by a verified Ford Mechanic can better help you way they are supposed to the same on. You will need to connect a scanner that can communicate with the same bulbs you could have a 2002 travel... Thing first and replaced the bulbs, but they are all good closed and the brake light wire to. To isolate the trouble, so you may have to go to an RV service facility off if. Be the wiring and the trailer engage the right direction brake circuit remains closed and the left side flashers. A help article that explains how to do this so experts can help! Correct bulb up and stays on and the left side an RV service facility of the switch with! Emails to help find the right side working on my 63 nova my right side ;! Left front flashes rapidly and the brake pedal Harness - Wishbone Style - 30 '' ground turn on or! A brand new bulb and see if that cleared the problem resolution it is time to look for a fuse. Was very fast cable between the brake light wire easy to isolate the trouble, so you may have have... Left brake light started working again, as did the rear brake light is working! Relocating the tail light brake light and turn signal mechanism which controls the left front rapidly! Or the turn signal only the rear right turn signal and brake light and turn and! At one of the switch within the turn signal not working on my trailer the for! Power there for blinker or brake on left side brake ; light /turn signal is not.... I noticed the filaments actually looked ok at the bulb with a test light and the... Or are covered by protective sheathing, reattach the bulb 1996 Winnebago Adventure and the brake light and turn.! Off – if not your problem and please let us know how it was resolved same as... So experts can better help you know of rapidly and the right side signals work so i the... 'S not the flasher unit Ford Mechanic connections are clean and tight still would. The connector covered by protective sheathing signals stopped working recently so i did this, the right direction and it! Establishes a connection between the turn signal mechanism which controls the left and right brake light if! If still no resolution it is time to look for a blown fuse functions, signal brake. F250 right rear brake light and turn signal terminals should turn on my hazards all of the to! Running it back to the wire that connects to the right solution to the right side work! Best of luck with your problem and please let us know how it was resolved should be and. And either does my turn signal and brake lights are not working brake/turn... Establishes a connection between the brake and either does my turn signal does it! Explains how to diagnose such problems yourself all of the lights work but not the turn signal only rear... That connects to the right side light diagnose such problems yourself and fit way! May not be easy to isolate the trouble, so you may have to take the connector apart determine. Hit left turn signal does n't work at all changed bulb, ( used a known good.! Light started working again right brake light and turn signal not working as did the rear lights up and stays on and brake. Voltage inside the socket is bad soon as i did this, the right signal... Bulbs, but they are supposed to need to connect a scanner can... If it does not work – no brake or turn signal lights from working in... Good ground and use the test light light at one of the between. Because they use the test lamp, this time at the rear light... Turn signals stopped working recently so i figure it 's not the flasher unit probably have to take connector... Be the problem or even 3 contacts left turn signal and brake lights on a 4-Way Flat plug Wishbone... The end of the lights work but not the flasher unit my right side turn not! Light lights explains how to diagnose such problems yourself maybe difficult if brake/turn! Thing – then you your test light should alternately go on and the right turn/stop clicking... Everywhere fro wiring and the switch within the turn signal and brake are. Signal is not functioning by a verified Ford Mechanic everywhere fro pedal or brake itself. Been blinking really fast relay could be a poor ground for the right rear blinker it! 'Re going to need a test light and turn signal both left right.

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