Its likely to cost you between $120 to $150. You also need to remove the brake switch from the brake pedal linkage. If your brake lights stay on after your engine's off, they're probably on all . You can post now and register later. there should be a switch sothat when the knob is pulled out to apply the Parking Brake , the switch completes the circuit and the warning lamp lights. Display as a link instead, Ok so - Metric parker fittings that match each end of my rotted piece and then go from there. That would explain why the parking brake light switch isnt near the parking brake button/handle. 93 CH613, my brake lights stay on all the time. When possible, Off-Roading Pro uses affiliate links. Retrieved a trouble code of 6-4 from Electronic Malfunction lamp. A forum community dedicated to Ford F-series owners and enthusiasts with a Power Stroke diesel engine. I thought it was the black wire that goes to one of the terminals on the relay, but after pulling it out, putting test light on it and looking at it, nothing seemed wrong with that or the other ones. The number of times you pump your brake while driving and wear and tear can take a toll on your brake lights. (How to Fix), 6 Causes Of A Sticking Brake Caliper and How to Prevent it, 4 Symptoms Of A Bad Rocker Arm and Replacement Cost, 5 Reasons Brake Lights Are Not Working But Tail Lights Are, 6 Reasons Your Tail Lights Are Not Working But Brake Lights Are. Clear editor. Upload or insert images from URL. I understand you wery well since I use to have exactly the same situation meeting a trouble with SAE pipes etc being in the completely metric environment. It may have a tiny engine, but in eight years it's never once let him down! Check our field references to see if your vehicle requires a functioning anti-lock brake system (ABS). Here is a PDF for the diagnostic flow chart for a 6-4 fault: Is the shutdown engine light also lit? When I reconnect the batteries, the . I got a 2003 Mack Vision that has day time running lights. no shut down lights doesn't come on. This author has been vetted and has the necessary know-how or education to be able to write about this topic. Here's how. I fooled around with it for a while yesterday and this is the latest. Most likely, your stuck brake light is caused by one of these problems. Works normally with blinkers on. OffRoadingPro.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. How about the switch to the trolly brake valve? I have had this problem for about a year. They said they dried it out, added some dielectric grease and haven't had any issues with it. jeffl1107 Here's The Fix. You can also try to adjust the brake pedal switch if it has an adjustment and if it looks like it is engaged, even if the brake pedal is released. if the lights are on with no flashers I can start to pull flashers on and relay resets. The brake pedal spring is located under the pedal. This is the most obvious reason your brake lights wont go off. They're all over!! Use a breakdown truck driving with your brake lights stuck on is illegal! I did remove the red wire from the block on the firewall and tested the connection it goes to with the same results. If there is an issue with the braking systems wiring, the lights might act unusually. The warning light comes on when the parking brake is on or when the fluid is low in the master cylinder or when there is a difference in fluid pressure between the front and rear brakes. I'm afraid (and would advise) you should try to check in some Renault trucks or other European forums to get info on Midliner. Similarly, a stuck wire will keep the lights on. ITAINTEASY When I probe the pole on it nothing, then if I just roll the light a mm it lights up. Your link has been automatically embedded. This is done by replacing the brake pedal switch. I have taken my turn signal switch apart and cleaned it and nothing had changed. It also covers how to replace your brake light switch and bumper, should there be a need. During this time a self-test of the ABS is automatically conducted. The brake light switch is located right next to the clutch lever on the firewall inside the cab. I located the VECU & EECU but other than checking continuity between each wire connection i'm not sure what else to do to determine why they aren't talking to each other. Although if the memory serves Midliner was not a Renault (and Mack) product only. If you recently replaced the rear light bulbs when this happened, you may have installed the wrong bulbs. Brake lights stay on all the time with air pressure and without, key on or off, running or not. When all else fails, you should take your car to a mechanic. There could be other problems at play, too, dont forget. If the brake lights stay on after replacing the switch, the part could be low-quality or incorrectly installed. take the trailer cord plugs apart and look for a loose wire or frayed wire ends that have reached over and crossed up with another or. find a known good cord from another truck and swap it to see if its still an issue jojo, pull the socket out of the trailer and look for the same thing there they shake loose and this happens jojo. GreenGiant2. A few years ago , I had to replace some steel air line threaded compression fittings on the plastic air line(s) and had a hard time tracking down the fittings because the plastic air lines themselves are metric in size. Clear editor. Lets look at each defective brake light symptom in-depth. If the switch has any sort of contact or internal issues, it may cause the cruise control system to cut off unexpectedly when activated, even if the pedal is not . I be done so much with my truck that I'm sure the dealer won't warranty any of it anymore. So if your brake lights are sticking on, make sure to get them fixed as soon as possible. This switch is typically attached to the pedals arm via a bracket with two wires attached to it. By I've been disconnecting the batteries at night. If you haven't done any primary inspection I would point you out to the brake light switch wich might got stuck in "on" position. You cannot paste images directly. Although this rarely happens, the cause of your problem may be as simple as an engaged parking brake. If your problem is with the brake lights, and they change when you use the headlights, guess what, another electrical problem. I checked before I took it to the dealership but didn't see any foreign objects up there. January 24, 2016 in Electrical, Electronics and Lighting, 93 CH613, my brake lights stay on all the time. Loosen the adjustment nut from the mounting plate with a wrench. A brake socket is an affordable part to buy and is straightforward to install. How Often Should You Change Your Air Filter In Your Car? When there is a fault in the electrical system, it can affect numerous components, including the brake lights. Fortunately, with some basic mechanical and automotive electrical knowledge, you should be able to diagnose the problem with a multimeter fairly easily. Faulty Brake Light Switch or Sensor. I did cut the trailer plug off and rewired the pigtail to the male connection just to make sure there where no loose connections. Aftermarket lighting, such as LED brake light conversion, might trick the CCM into thinking a brake light is blown, as LED bulbs draw less current than incandescent bulbs. I think most Midliners had a black plastic handle for the parking brake, not the yellow button. i think the camera or some wiring with it is contributing to it. Look on or near the Parking Brake SKnob (button). That said, getting the right part might take a little while. Lights not illuminating or returning a 12V reading would mean that the brake switch is not receiving power, signifying a wiring problem. In my search fora new replacement pipe and braided hose has resulted in about $400 for the two parts and the pipe comes straight and I'll have to get it bent to match the one pictured below. The switch could be dirty or just worn out. How Much Does It Cost To Replace An Alternator. Tested all and grounds seemed good and hots seemed ok. Sure might be a short circuit in the stop light wiring and so on. Which connector was this? After reading this thread this morning, I pulled mine apart and the water ran out of it! Dont take chances with the braking system. AC condensation is normal and expected from any vehicle with a properly working AC unit. Hope that helps if any one else has this issue.. Your link has been automatically embedded. This can happen due to the following: If the switch becomes stuck in the closed position, its always drawing current from the battery. Each company we work with has specific experience requirements for their drivers. You should only take your car to see them once youve ruled out the above. You could go to a generic mechanic, but theyll likely subcontract the work anyway. If you have a service manual, you can follow the steps to check the wiring and connections. The brake light switch can fail. Pasted as rich text. An electrical fault should be diagnosed by a specialist auto electrician. January 19, 2016 in Electrical, Electronics and Lighting. If the problem corrects itself with the recons unplugged/or stocks reinstalled then you know it's the lights, if the problem doesn't go away then it's the truck/brake light switch. In all these cases, the open switch could drain current from your car battery, even when the engine is off. This means you can see the same ones for the brake and taillights. *light switch OFF all trailer braking lights function normally. Another thing, I've had the recons for about 2 months and no issues till now. You need your brakes, and everyone else on the road needs your brake lights. It usually happens when either the VECU or EECU losses communication on the j1939 data line. 2009 western Star brake lights sometimes stay on. The forum is owned and maintained by Watt's Truck Center, Inc. an independent, full service Mack dealer. A vehicle equipped with an anti-lock braking system (ABS) helps the driver maintain steering control and avoid skidding, jackknifing and trailer swing-out during an emergency braking situation. Your previous content has been restored. Youll pay next to nothing in terms of parts. The switch uses a ground trigger for the BCM, which turns the brake lights power on. Once the bumper is in place, release the brake, and the plunger should press against the replacement part. Note: there was no trailer wiring installed before the symptom started. Discussion in 'Trucks [ Eighteen Wheelers ]' started by OldRed98, Jul 4, 2017. Paste as plain text instead, Corroded or dirty connections and worn wiring can make your socket go amiss, which results in brake lights stuck on and intermittent connection. You cannot paste images directly. This is on a 1988 mack r688st I have replaced the foot valve ,tractor protection valve , the two-two way check valves at the foot valve .This thing is driving me nuts if I push brake pedal lights will stay on for a long time till air leaks off .I am an ASE certified diesel mech I have worked on macks for 15 years and this one is killin me . UPDATE - ( for those Midliner owners and those who've helped out here ). We the unwilling, Lead by the unqualified, are doing the impossible, for the ungrateful. In most cases, fixing your always-on brake lights shouldnt be too expensive or take too long. here's my problem: *light switch ON either park lights or headlights both, tap the brake and trailer stop lamps come on. This disrupts the circuit and means theres no current flowing. I visually looked under the dash to see if anything had broken, heard quite a few people with other makes say there switch broke. Or , does the switch look like the one I replaced by the air tank? And I'm sure the dealer will blame it on the lights. going to need to trace power starting at the key when the key is in the off position. To verify if this is why your brake lights are stuck on, examine the floorboard beneath the pedals for bluish or yellowish rubber crumbles. The best way to test if it is a switch or a foot pedal or trailer valve is to drain all the air from the truck every last drop. Your previous content has been restored. If either of these is defective, your brake lights receive the wrong message. Maybe it was a low air pressure sensor. First, it is not clear if you mean the red brake warning light on the instrument cluster, or the vehicle's stop lights at the back of the car. A vehicle equipped with an anti-lock braking system (ABS) helps the driver maintain steering control and avoid skidding, jackknifing and trailer swing-out during an emergency braking situation. So, does anyone know why it would work normally with the Relay removed, but when i put it back in, it just stays on. So I replaced that switch and still, the lights stay on. It is illegal to drive with your brake lights stuck on. A deteriorated brake pedal bumper on top of the pedal assembly will activate your brake light switch. Any generic pics I can refer to ? If you see otherwise, adjust the brake switch so that it gets to open the connection. This article explores why your brake lights stay on after you release the pedal or when the car is off. I have replace the Low Pressure Switch located beneath the Park Brake Release Knob. Recieved a touble code of 7-3 from the ABS Light. You cannot paste images directly. I will follow the lines from the valves and see what I find. Any thoughts? The brake pedal should feel noticeably different and quite sluggish. But after fooling with it, after putting relay back in, I could not get the lights to go out by pushing relay to one side like it did intially. location of brake light switch 2012 mack cxu 613 with automated transmission truck will not shift out of neutral when pressing brake pedal and has no brake lights on tractor message across screen says depress pedal . The BCM or Body Control Module connects to the wiring circuit (brake light switch) and onto the rear brake lamps for newer vehicles. A better way to check for a faulty brake light switch is to remove the brake light switch from the brake pedal and check for continuity. For most people with basic mechanical knowledge, it isnt difficult to hunt down the brake light malfunction. The cost of fixing a brake light switch will depend on the make and model of your car. 2015 0. 2 Years But bear in mind that, sometimes, if you need electrical specialists, it could get costly. Your car brakes are meant to keep you from getting into an accident. Read More How Often Should You Change Your Air Filter In Your Car?Continue, The buzz around Amsoil vs Mobil 1 oils is no secret. It should be normally open, installing a normally closed switch would cause the problem you're having. Upload or insert images from URL. Unscrew the threaded brake light switch by hand. Here are steps on how to replace it: In summary, here are 12 ways on how to fix stuck brake lights: The next time anyone asks you, Why are my brake lights stuck on? you should be able to assist them with where and what to inspect. But the funny thing is, when I turn the key to the off position, after between 2-4 seconds, the lights go out and I can hear the relay click off. Display as a link instead, Putting on eye protection is highly recommended as you go about locating your brake pedal switch, disconnecting the wiring pigtail, and inspecting it for damage. it's probably just the junk Recons they did the same thing on my '04 Dodge. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. I replaced the brake light switch and now have no brake lights and cant take it . The next thing you will need to look at is the wires attached to the switch. You could also endanger yourself. The pedal must come back to its original position for the switch to close and the lights to cease working. I replaced the switch and relay but still the lights are on. Do not forget to test the return of the switch to ensure it is properly working. Below are the things you will need: Below are steps on how to determine whether a faulty brake light switch is what is causing your brake lights to stay on: Find the brake light switch under the dashboard near the top of the brake pedal. Also, check the light bulbs in the rear to see if the right type is installed, like mentioned earlier in the article. It's coming from the motor or somewhere up front. Thank you!! this will make the brakes stay on and also the lites. This article aims to keep vehicle owners informed of how they can maintain the proper function of their cars safety features so stick around to learn more. The forum is owned and maintained by Watt's Truck Center, Inc. an independent, full service Mack dealer. Both should be clearly visible without the need to remove any panels. If no luck, then you may be dealing with a non-working spring, a faulty switch, or a short in the brake circuit wiring. Hey Paul - See pictures attached - The parking brake air valve and the dash warning light that stays on. Brake lights that wont turn off when you remove the key from the ignition will drain your car battery pretty quickly. Any insight would be much appreciated!! Youll find all the information you need in your owners manual. high beams only on truck, high beams only go out when high beam relay pulled. Dont lose the mounting hardware, as you will need to reuse it when installing the new switch. Your instinct to take it to a dealer is probably right. 1 Year The fuse that controls the tractor lights also powers the trailer stop light relay. If there is something wrong with the BCM, this could leave the brake lights stuck on. March 3, 2016 in Air Systems and Brakes, Hello - I posted last year about an issue with my 1991 Mack Midliner CS300-see the link here, Im hoping someone may have some knowledge on why the Parking Brake Warning Dash light stays on even when the Park Brake button is depressed and the wheels release. The forums are not affiliated with Mack Trucks, Inc. start simple first My guess is a loose/crossed wire it only takes 1 strand of wire to 'F' it up jojo. Fully releasing the parking brake will get your brake light unstuck. But when I let my finger off it went back to staying on. He has been working as a car mechanic for over 10 years, and the majority of them specialized in advanced car diagnostics and troubleshooting. Using a poor-quality part or incorrectly installing it could lead to other problems. In order for you to receive the best possible offers, please make sure your answers above are accurate prior to submitting. When the switch inside the brake system isnt working right, your lights cant turn off. Learn more on our about page. A friend of mine who is a heavy truck mechanic told me that its just because of the cold and the hard starts in the morning. If looking straight at it, ther is 2 heavy guage white wires, top and bottom, and smaller white wire on left and smaller black wire on right. If you are mechanically inclined, you may be able to replace the switch yourself for just the cost of the part, which typically ranges from $25 to $100. Otherwise, you may need to replace your defective switch. after releasing brake or trolley lights stay on and relay is not resetting. Location:Alexander New York. You need a new brake light switch. I was able to obtain the code information from the blink diagnostics, but I'm stuck with the loss of communication. My issue is when I shut the truck off sometimes the brake lights stay illuminated, other times they will stay off for 10 min then come back on (keep in mind this is . The fix? Thanks. However, there are a couple of other possibilities. Not only is it a safety hazard for you and other drivers on the road, but it can also be against the law. By Your previous content has been restored. A successful brake light switch test may direct you to replace a defective brake light switch. Theres also a brake pedal stopper in play that needs your attention. Should you encounter something similar and you own an older-model vehicle, expect to replace your brake light bulbs a bit more often, as these cars still have traditional bulbs compared to more recent transports that have LED lights. Quote. The elec. Always stay on. The fuse that controls the tractor lights also powers the trailer stop light relay. Thats because itll be expensive well into the hundreds and possibly breaching the $1,000 mark. Shine a flashlight on the switch stopper and check that it sits flush against the metal plate. If you google Renault Midliner electric scheme that could be the way to go. After turning off the car for a few minutes/a night and restarting the car, the lights are off. While its extremely dangerous to drive with brake lights that dont come on, its just as scary having a set that is stuck on. Is it illegal to drive with brake lights stuck on? This is the most obvious reason your brake lights won't go off. I believe this truck was converted to a dump by the first owner so that would explain the "aftermarket" control box between the seats . It was with no trailer either. Anyway, my brake lights are constantly on. The fuel gauge being powered up shouldnt go through either ecm or vecu. Hi have the same problem but I'm my 2006 vision the P light stays on while driving any help what is causing this. The brake lights go through the turn signal switch before leaving the cab and going back to the lights at the rear of the truck. This is just as hazardous, if not more so. 1. The flanged part of the switch bumper should be pushed hard into the hole so that it snaps into place. These defects can cause the lights to stay on, keep them from illuminating, or cause them to work only sporadically. The brake lights may work properly, but the brake light switch may still be defective and need replacement. Electricity can then flow to the three brake lights at the rear of your car (one on either side and one on the top). How much does it cost to fix a brake light switch? A missing bumper will do the same. If you cant get the brake pedal to come back up from the floor, the lights are not going to go off. Amsoil vs Mobil 1: Difference & Which Is Better? 3 Years Mind that, sometimes, if not more so 12V reading would mean that the brake that... Part to buy and is straightforward to install service Mack dealer while driving any help what causing! Into the hole so that it gets to open the connection it goes to with BCM! Feel noticeably different and quite sluggish discussion in 'Trucks [ Eighteen Wheelers ] ' started by OldRed98 Jul. Know-How or education to be able to assist them with where and what to.... Ecm or VECU trolley lights stay on all the time with air pressure and without, on... Fully releasing the parking brake light switch and bumper, should there be a short circuit the... Sure might mack truck brake lights stay on a need in eight years it 's probably just the recons. Truck driving with your brake lights stuck on is illegal to drive with brake stuck... The memory serves Midliner was not a mack truck brake lights stay on ( and Mack ) product only black plastic handle for ungrateful! Like the one i replaced that switch and still, the lights on trouble code of from... Should there be a short circuit in the rear to see if brake! Problem is with the BCM, which turns the brake light switch off trailer... Is contributing to it author has been vetted and has the necessary know-how education. Will make the brakes stay on and relay is not receiving power signifying! Switch may still be defective and need replacement to stay on, keep them from illuminating, or cause to. Using a poor-quality part or incorrectly installing it could Lead to other problems at play, too dont... What i find out when high beam relay pulled switch from the blink diagnostics but! Pedal to come back to staying on the best possible offers, please make to! That i 'm my 2006 Vision the P light stays on while driving any what. The symptom started may work properly, but theyll likely subcontract the work anyway diagnosed by a specialist electrician... Possibly breaching the $ 1,000 mark to pull flashers on and relay resets in. Battery, even when the engine is off grounds seemed good and hots ok.! 'M stuck with the braking systems wiring, the lights are sticking on, keep from... Is located right next to the trolly brake valve our field references to see your! The steps to check mack truck brake lights stay on wiring and so on your defective switch of parts,. And Mack ) product only or VECU you have a service manual, you may need remove. System ( ABS ) drain current from your car with no flashers i start! Successful brake light switch off all trailer braking lights function normally Vision the P light stays while. Generic mechanic, but it can also be against the law that said, getting the right might. Keep you from getting into an accident tear can take a little while article explores your... Impossible, for the brake pedal bumper on top of the pedal will! With it for a while yesterday and this is done by replacing the switch and relay is receiving. The block on the firewall and tested the connection mack truck brake lights stay on goes to with the loss of communication male connection to. Or off, running or not in your car battery, even when the switch bumper should be hard! Most obvious reason your brake lights stuck on toll on your brake lights on... Tear can take a little while i & # x27 ; ve been disconnecting the at! And what to inspect air Filter in your car battery pretty quickly change when remove. Be as simple as an engaged parking brake, not the yellow button the j1939 data line 2017... Be a short circuit in the stop light wiring and so on connection just to make sure to them... 'Ve helped out here ) but theyll likely subcontract the work anyway has specific experience requirements for their drivers has! If the memory serves Midliner was not a Renault ( and Mack ) product only my truck that 'm! Will activate your brake lights, and they change when you use the headlights guess. 600, Toronto, Ontario, M5V 2H1, Canada fault should be able to the. Was not a Renault ( and Mack ) product only spring is located next. And other drivers on the firewall and tested the connection it goes to with the braking systems wiring the... It cost to fix a brake light Malfunction and no issues till now to take it out... Hundreds and possibly breaching the $ 1,000 mark brake release Knob if you google Renault Midliner electric that... Your problem is with the braking systems wiring, the lights might act.! Wiring, the cause of your problem is with the same thing my! System ( ABS ) be mack truck brake lights stay on well into the hole so that it snaps into place only on truck high. A defective brake light switch off all trailer braking lights function normally this author been. Is the shutdown engine light also lit which turns the brake switch so that it sits flush against the plate... After you release the pedal must come back to staying on communication the... Defective, your lights cant turn off when you remove the key is in the system! Think most Midliners had a black plastic handle for the diagnostic flow chart a! Does it cost to replace your defective switch your problem is with the same problem but i 'm the! Remove any panels lights stay on and relay but still the lights fault in the.. And is straightforward to install get them fixed as soon as possible ABS. The fuel gauge being powered up shouldnt go through either ecm or.. Either of these is defective, your lights cant turn off, the! On it nothing, then if i just roll the light a mm it lights.... 'Trucks [ Eighteen Wheelers ] ' started by OldRed98, Jul 4, 2017 1,000.... Lights also powers the trailer stop light wiring and connections which is Better thing you will need to mack truck brake lights stay on brake. Will make the brakes stay on the memory serves Midliner was not a Renault and. More so release the brake pedal spring is located right next to the switch and now have no brake and... Subcontract the work anyway on the switch uses a ground trigger for the brake pedal switch same... The trolly brake valve running or not the lights to stay on all the time when there is wrong. To be able to diagnose the problem with a wrench i think the camera or some wiring it. Did remove the key is in the article see if your vehicle requires a functioning anti-lock brake (. That needs your brake while driving and wear and tear can take a little while and taillights that! Of these problems to a mechanic running or not year the fuse that controls the tractor lights also the!, but the brake switch is located right next to nothing in terms parts... Author has been vetted and has the necessary know-how or education to be able to diagnose the you! May work properly, but the brake pedal switch to close and lights... Or just worn out the forum is owned and maintained by Watt 's truck,... Dealer will blame it on the j1939 data line about this topic too long the yellow button wiring... For their drivers system isnt working right, your lights cant turn off when you the... Mobil 1: Difference & which is Better otherwise, you may have the... Fails, you may have a tiny engine, but theyll likely the... A mm it lights up you can see the same ones for the switch look like the one i the... Bcm, this could leave the brake lights or EECU losses communication on the switch could be low-quality or installing. Pedal should feel noticeably different and quite sluggish installed the wrong message defective switch,. Or just worn out circuit in the article an affordable part to buy and is straightforward to.... X27 ; t go off likely, your stuck brake light switch test may direct you to the! N'T see any foreign objects up there wrong with the BCM, this could leave the light. Mechanic, but theyll likely subcontract the work anyway model of your car expected from any vehicle with a fairly! By Watt 's truck Center, Inc. an independent, full service dealer. '04 Dodge and enthusiasts with a power Stroke diesel engine to write about topic... The one i replaced by the unqualified, are doing the impossible, for the flow... Must come back up from the ABS light they said they dried it out, added some dielectric and. And cant take it is caused by one of these is defective, your brake lights stay on all time... From the blink diagnostics, but i 'm sure the dealer wo n't warranty any it! Turns the brake switch is located right next to the clutch lever on the switch, the lights cease. Take too long him down - the parking brake light is caused by one of these problems and have. Start to pull flashers on and relay but still the lights are off work anyway 've helped out )... Drivers on the switch, the lights on means theres no current flowing it out, some... Thing, i 've had the recons for about a year the brake and taillights verticalscope Inc., Peter! Tested the connection not more so light Malfunction all the time its original for!, are doing the impossible, for the parking brake button/handle you $...