My backup lights and wired in backup alarm are not working. The possible reasons for brake lights not working but tail lights are: Blown out light bulbs are the most common reason for why the brake lights not working but the tail lights are. link to shorter video on a very similar repair. You have to find the fuse box or the power distribution center (PDC). The Best TOAD Vehicles for Frequent Campers. If anyone of these conditions are not met, the truck will not cooperate. we removed the cover for the park brake housing, pulled up the floor and found the connector and wiring packed into  dirt via a hole worn into the floor by the operators boot. The brake light switch is activated by a combination of the primary and secondary air systems using a double check valve. Thank you. What could be the cause of this problem? My backup lights and wired in backup alarm are not working. The ECM runs numerous checks on the condition of switches it requires to initiate a parked Regen. Ron Francis Wiring LED Dash. I checked the running light pin on the truck plug, and I do show it is getting power to it. Tsukasa’s blog is one of the best resources for information about keeping your favorite imported car running smoothly. The wiring from the fuse panel to the brake light switch and from the switch to the bulb sockets and lights could be loose or frayed. ... Trailer Wiring Harness for a 2014 Mack Truck Granite; As manufactured by MACK Trucks, Inc., the air brake system on MACK chassis (both incomplete and complete) comply with the applicable requirements of U.S. Federal and Canada Motor Vehicle Safety Standards (MVSS) 106, Brake Hoses, and 121, Air Brake Systems. If the warning light has text. I have a Ford Focus St. All my lights work , but if I have my lights on at night travel, and if I try pressing my brake, then my left rear lights goes off. A simple thing like the ECM not seeing the park brakes position can cause a lot of expensive down time. First check and confirm brake light lamp is working and that's not the case. This is what I am trying to figure out. The normal operating temperature for Mack engines is 80 to 105° C (170–215° F). after chiseling out the dirt, we found one of the lead wires had corroded off and broken clear from the connector. Its mack truck 2007 ,GU813. the solution may surprise you! My brake lights and turn signals don’t work but my fuses argood anyone know what that could be. Success! Your email address will not be published. moving snow, repairing a 30/30 brake can during a blizzard. However if I travel in the day, with no lights switched on, then my brake lights function perfectly. When the headlights are turned on and the brake applied, the bottom running lights (same bulb as brake lights, different filament) go out and the brake lights do not come on. Get the Full Explanation of the Dashboard Warning Lights, Get to Know about the Car Lighting System, brake lights not working but the tail lights are, why wont my tail lights work when my headlights are on, The 7 Best Car Batteries For The Money in 2020, White Smoke From Exhaust: Main Causes and How to Fix, Low Tire Pressure Light but Tires Are Fine Issue: How To Fix, 10 Best Tire Companies In The World [Updated In 2020]. Thank you for your advice , I will do as you suggested, & let you know . Cant do a parked regen? Designed by Converge Studios | Powered by InSite Media. Any help would be appreciated. The common causes the tail lights do not work are; Blow fuse – The first thing the mechanics check is the fuse corresponding to the rear lights. Tail lights could turn off for several reasons and they are almost similar to the causes why brake lights not working but tail lights are. Push the bulbs and turn them counterclockwise to remove from the socket. Expand your inspection forms to make sure you're checking every single head lamp, tail lamp, turn signal, reflector, warning lamp, license plate lamp, fog lamp and marker for damage or dimness. In this instance, the driver did everything correctly but the truck wasnt responding. After reassembling the components we removed, the truck was moved out of the shop and initiated a parked regen to clear the dash lights. He owns a car repair shop at downtown Osaka, and he put all that experience to good use in his sharing posts. Our team is a diverse group of individuals, each bringing their own skill set to make up the foundation of this company. How to Start a Car with a Dead Battery Without Jumper Cables? If your third brake light works either way but the rear brake lights stop working when the truck is on its a faulty ground wire to the stop lamp relay. Check the switch’s wiring diagram and find the single wire that establishes a connection between the brake light and turn signal switches. If all the components mentioned above are working just fine, you have to look somewhere else to find the source of the problem. Only have tail lights for the trailer, as long as the headlights are off on the truck. It can cause severe accidents, especially on dark streets or during heavy rain and snow. It is so because you won’t know what is happening in the backside while driving until someone points it out. Learn Its Functions, How to Clean Battery Terminals: A Detailed Guide, How Many Miles to Drive after Resetting Check Engine Light for Inspection, Things To Avoid While Driving An Automatic, Best Tire Pressure Monitoring System Reviews. Remove the screws from the bulb lens (which you can access through the trunk or see your vehicle repair manual to get the exact location). please help me. We had a customer come in to us today complaining that the dash lights are calling for the driver to do a parked DPF regeneration but the truck wont let him do it. Moreover, because of being passionate to learn about the recent happenings in auto industry, he doesn’t only provide great car maintenance tips, he also always updates latest trends in among car brands and share them in his own interesting viewpoint. For example, if the brake lights come on that meansits time to replace the breaks. Cruise control, Engine Brakes, Park brake, clutch pedal, throttle pedal, brake pedal, transmission neutral switch and DPF soot load need to be working and reading the condition the ECM requires to initiate the process. Clearance lights on a 1999 Mack e7-460 Mack truck are coming on and off with the brake lights...I’ve split all of the close contact points that I’m aware of...taillights in the truck ...trailer connection in the truck...it’s still here...I’m not sure where to look now. If the test light is not on, you have to change this wire. I have a 2005 Mack Granite CV712. Mack Body Builder material is located on our public Mack Trucks web site here. We support Alberta Apprenticeship Programs by hiring apprentices and pairing them with experienced journeyman as a part of a growth and mentorship program, while providing our customers with the utmost quality work. It can be faulty brake light switch causing the problem or its blown brake light bulb. The ECM runs numerous checks on the condition of switches it requires to initiate a parked Regen. Free shipping ... 2x Waterproof 10 LED Oval Truck Trailer Stop Turn Brake Tail Light Flange Mount. I get a dim light a the connection plug to the trailer, but the controller does not recognize when I connect my trailer. In most European cars, the same bulb does the job of the tail and brake lighting. There might possible have been or … Any change or addition to the system may cause the vehicle to no longer be in compliance with US Stock 5" 18LED Car Motorcycle Working Light Flood Beam LED Lamp 54W 8000LM X1 (Fits: Mack CXU) $28.89. Mack Trucks has a long history of pioneering safety innovations, so it was no surprise features related to safe operations were a top priority for engineers when they designed the new Mack Anthem ® highway tractor.. When this particular truck came into the shop, we noticed the park brake indicator on the dash was not on with the park brake set. The driver places the truck on a surface away from potential fire hazards, sets the park brake, insures the cruise and engine brake switches are in the off position then holds the “Regen” button like hes supposed to… problem is, the light on the button just flashes and nothing happens. Driving at night with either brake lights or tail lights not working is dangerous for you and other drivers on the road. If any of them does not work, other drivers behind you won’t see if you are moving or not. >> A list of high-quality used cars from Japan you should have a look at <<. The transmission will not shift gears and driver is limited to about 6 MPH. When coolant temperature is excessive, the red STOP tell-tale illuminates and the buzzer will sound. For turn signal not working it can be faulty turn signal switch or its issue with wiring:----. Suran I think you have a broken wire, bad relay or bad light/signal switch. Both brake and tail lights are crucial for road safety. The connection and the bulb housing could be corroded. I have a 2003 mack granite tri axle dump with a 427 e tech. Free shipping. Jim, common problem. Also the brake relay powers the flasher, not fuse 4 as shown on the diagrams. A successful company is a product of its people. Couple things-this shoes relays I don’t have. It could happen due to a loose connection of the wire or the corrosion or damage of the wire ends. When the fuse is blown it does not allow the circuit to complete. What is Speed Shifting and How to Speed Shift Properly? Can someone please give me advice. Hi there its mack truck 2007 ,GU813. Usually when the “Regen” button flashes, its an indicator to the driver that a condition isn’t met. There are several warning lights that can appear on a MitsubishiFk4truck. We pride ourselves in hiring and developing strong individuals. In order for you to receive the best possible offers, please make sure your answers above are accurate prior to submitting. $16.48. I’m having the same issue currently. Blown out light bulbs are the most common reason for why the brake lights not working but the tail lights are. Need help. https://youtu.be/qxTC01SrWnk Besides, try to find out the cause of the blown fuse. Are Cars Designed to Fail At A Certain Point? Don't just “check lighting,” though. Im thinking a fuse, but it’s so difficult to locate that fuse. Doing a visual sweep of the gauges and lights on a pre-trip can avoid an unwanted tow bill or worse yet, the loss of a contract with the client. Proud partners with Canadian Truck Wash & Lube. 73992 Brake lights work fine until the headlights are turned on. These are the ABS sensor wires. What’s the problem? Amazon Affiliate Link to Brake Light Switch: https://amzn.to/2VWDBVvPlease click my name under the video to view all my easy how-to videos. 000569, Member of Tokyo Chamber of Commerce Boueki - 201650, 5 Reasons Why Brake Lights Not Working but Tail Lights Are, How to Find out a Faulty Canister Purge Solenoid, What Is HOAT Coolant? In this instance, the driver did everything correctly but the truck wasnt responding. Then there is no lights at all that work on the trailer. When I apply brakes my headlights come on what causes it. My tail lights don’t work, but my hazards, blinkers and brake lights do. 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