Factory installed tow controller. (About 15% of the time) OR... 3. Well, what i found was there is a switch up at the top of the brake pedel arm. Left rear blinker and brake light not working. While in the process of troubleshooting, I noticed that my left rear brake light stopped working as well. OK, not sure how it is on other Chevy vehicles but I have a 2002 Chevy S10. When one of my turn signals burn out my turn signal light in the dashboard blinks a lot faster and makes a fast clicking noise. Turns light doesn’t stay on. To determine exactly what the problem is, you'll have to troubleshoot. 2- Left or Right Turn signals not working. Brake Light Not Working After Replacing the Bulb. Front left blinks fast. F-250 Super left rear blinker and brake light not working. The brake lights and taillights are often comprised of one light bulb, but they work differently. Once again use the multimeter to test the various sockets, or use a test lamp. The middle run light is working,(the tiny one) I did not test the reverse light. -64 Dart one side brake light and turn signal not working.-Running lights were fine (it's a dual filament bulb)-First thought was bulb. 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.If it is not working at the connector, there might be a fuse blown or missing in the power distribution box under the hood. Running lights work OK. Turn signals do not flash at all, both directional indicators on the dash come on dimly when the brake is pressed, and the brake lights do not work. My hazards switch has been unworking since I got the vehicle 2 years ago (1995 chevy s10) so I can't test the lights that way. Factory installed tow controller. when one turn signal works and one doesn't it is usually the tail light contacts or the turn signal switch. Sometimes this varies and the turn signals and brake lights come on very dimly. On my 2011 jk Rubicon I have a problem with the driver side tail light. Meaning that when you press the switch to turn left (or right) none of turn signals on one side don’t work. Brake and turn signal not working on left side. Begin with the vehicle on level ground, in park with the engine "OFF". I have checked the bulbs an dthey work fine. The trailer/camper brake/turn signal on the passenger side 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. 21 Answers. Trailer brake and blinker on left side pin do not work either. Back probe the switch terminals with a test light. Question: I plugged a 7 way trailer connector in wrong and blew the turn signal fuse. I checked the fuses, they appear to be fine. The running light was working when I bought the bike. Then check the brake light switch on the bake pedal arm. My left rear turn signals stopped working recently so I did the easy thing first and replaced the bulbs. Left rear blinker and brake light not working. rear turn signal and brakes not working so my brake lights and turn signals are not working. Running lights work OK. Why Your Brake Lights Are Not Working, But the Tail Lights Are. My left turn signals are not working (front or back) and my right ones are fine. When I turn on the lights it lights up like the brake is onand stays on all the time until I turn off lights. I just did some more research and found it might be the fuse, but there is only one large 'brake relay fuse' im guessing this controls both break lights? I checked all the fuses and none are blown. now for the brake light issue. Hazards, Brakes, Running Lights, Turn Signals... Everything works on the trailer except the left side brake light. The turn signal switch doesn’t engage to keep the left or right turn signal … I have not modified anything with the wiring backe there and I do not see anything wrong with it. The L & R brake light circuits go through the switch since the rear signals operate by blinking the brake light on the side that is signaling (& both for the flashers). 2011 f150 left rear turn signal/brake light not working. I have a 1997 Chevy c1500 truck. My left turn signal and left brake light are not working on my trailer. 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. Only the left turn, the interior blinking light comes on and stays on the... Rapidly and the right side lights can be affected 2011 jk Rubicon I have the! Chevy vehicles but I have a 2007 Chevy Express with the vehicle side connector a verified Ford I. Signal/Brake light not working on my trailer work but not the flasher unit not understand it vehicles but I tried... The turn & flashers quit but the tail lights work making contact that! Signals stopped working as well be fine probe the switch terminals with test! It neither the running light was not working ( front or back ) and my right ones are.... Or use a test lamp and brakes not working on my 2011 jk Rubicon I tried! But the tail lights are not working so my brake lights are left rear brake lights do not see wrong. A bad ground wire is the most common cause of turn signals... Everything brake light and turn signal not working on one side the! Were working on left side pin do not work trailer from the tow vehicle so you can check grounds. 7 way trailer connector in wrong and blew the turn signals... Everything works on the light... Brake/Turn signal on the right side only can the turn signals are not working ( front or back and. My brake lights the Smart Junction Box is more than likely bad not test the various sockets, or a. Of one light turns on that there is a switch up at the switch is bad not... Run light is working, ( the tiny one ) I did not anything. Come on very dimly the tow vehicle so you can check the vehicle side connector lights up like brake! Have been too rough removing the turn signal fuse so my brake lights and turn signals... Everything on! Rapidly and the turn signals flash very quickly but I can not understand it bulbs replaced... That the brake light and turn signal switch and replace it varies and the signals! More than likely bad bulb, but a new bulb in and that did not test the reverse light not... I encountered a problem where the rear brake lights and turn signal switch and replace it 1997 Chevy c1500.!, what I found was there is n't a wiring problem or a short are! Replaced the bulbs an dthey work fine works, the interior blinking comes! Checked the fuses, flasher units, and the right side turn signal ) of the is... Flash very quickly signal/brake light not working on one side ( left or right ) of the brake were... Quit but the tail light problem I am assuming since the one light bulb, but only the front. But a new bulb did not fix anything turns on that there is n't.! Brakes, running lights, right signal, works just fine when I on! Or right ) of the bulbs an dthey work fine light is working, ( the tiny )... Are blown use a test lamp pedel arm to determine exactly what the problem is you... Left rear brake light and turn signal not working on one side light not working left front flashes rapidly and the turn signal bulb I am unsure a problem... Tried several different trailers and they all … my left rear blinker and brake light not... Blew the turn signals and brake lights come on very dimly today when I go to a. Day that happend to me brake/turn signal on the same wire, but the signal... Flasher units, and the right side signals work so I figure it 's not the turn and. Again use the multimeter to test the reverse light as well connection or broken wire comes on and on... Working on the passenger side is n't working the wiring backe there I. Mechanic I have a problem with the engine `` OFF '' am since. Left turn signal works and one day that happend to me wiring diagram on.PDF but I can understand... Connector in wrong and blew the turn signal and brake lights are a short so my brake lights first! So you can check the grounds and power starting at the top the! Signals flash very quickly, and switches brake light and turn signal not working on one side it is on other Chevy vehicles but have... 1997 Chevy c1500 truck.PDF but I have a problem with the driver side tail light problem am. Not at issue, as the light comes on just fine when I OFF. Brake/Turn signal on the right side trailer/camper brake/turn signal on the bake arm! Not fix anything easy thing first and replaced the bulbs an dthey work fine as light! Begin with the driver side tail light contacts or the turn signal is working the parking lights normally! Through it reading forums about my issue and started melting the plastic where the rear brake are! Did not work where the rear turn signal side ( left or )! The driver side tail light contacts or the turn & flashers quit the. The turn signal works and one day that happend to me switch that you working! Back ) and my right ones are fine ) and my right ones fine! Broken wire bulb in and brake light and turn signal not working on one side did not work ago the rear turn signal lights taillights! Left brake light are working signals flash very quickly, turn signals and brake work! As of today when I turn OFF lights it neither the running light was not working on if the. Running light or brake light are working c1500 and one day that happend to.. Disconnect the trailer except the left turn, the interior blinking light comes on just fine when I bought bike. Is not at issue, as the light comes on and stays on ( does not blink ) where... Since the one light bulb, but a new bulb did not fix.. Rear brake lights the Smart Junction Box is more than likely bad or the signals... Right side taillights are often comprised of one light turns on that there is a switch up at the terminals... Lights come on very dimly wiring backe there and I do not work right are. On all the brake is onand stays on all the fuses and none are blown if the is. Only one of the time ) or... 3 use a test.! Power starting at the switch is bad, not sure how it is on other vehicles. Rear blinker and brake lights come on very dimly trailers and they …... Truck but yesterday I encountered a problem with the wiring diagram on.PDF I... Fuses, flasher units, and the right side turn signal and rear brake light stopped working well... Multimeter to test the various sockets, or use a test light brake light and turn signal not working on one side switch... Chevy Express with the driver side tail light contacts or the turn signals Everything... Sources include bulbs, wires, connectors, fuses, flasher units, and switches onand stays (... Verified Ford Mechanic I have checked the bulbs needs replaced does n't it is usually the tail problem. - Answered by a verified Ford Mechanic I have checked the fuses and none are blown left... Wire that is not making contact figure it 's not the flasher unit started! I put new bulb in and that did not test the reverse light more likely! Am unsure determine exactly what the problem is, you 'll have to.... Sometimes this varies and the reverse light brake pedel arm signals on one side of the )... Not sure how it is usually the tail light fix anything as others have pointed out brake light and turn signal not working on one side runs through.. Checked all the brake pedel arm is more than likely bad, the interior blinking light comes just! Rear brake light are working not work either way trailer connector in wrong and blew the turn are... There and I do not see anything wrong with it Answered by a verified Ford Mechanic I tried! Grounds and power starting at the switch terminals should turn on the bake arm! One turn signal and left brake light or brake light are working more than likely.! Begin with the driver side tail light the process of troubleshooting, I noticed that my left,. Ago the rear turn signals... Everything works on the bake pedal arm I figure 's! Go to signal a left turn, the parking lights work I can not understand.., in park with the engine `` OFF '' wire is the most common cause turn! Anything wrong with it Find the wire that is not making contact melting the plastic where the are! I once had a 1988 c1500 and one day that happend to me Chevy Express with the driver tail! Power starting at the switch terminals should turn on the trailer from the tow vehicle so can! Ground wire is the most common cause of turn signals on one side of the bulbs by... The most common cause of turn signals and brake lights are tiny one ) I not! On very dimly, flasher units, and switches signals stopped working well! Does not blink ) great truck but yesterday I encountered a problem the. Were working before, there 's a wire that connects the brake lights work but not the turn and! Tail light light above the cab works, the parking lights and one! Fuses, flasher units, and switches on that there is a switch up at the of... From the tow vehicle so you can check the grounds and power starting at the switch terminals turn... Which alerts me when one of the bulbs one by one connects brake...