<<. The ECU is programmed with your DeVille’s gear ratios and stock tire height. The VSS is usually not very expensive, and they are not that difficult to replace. Is there a fuse for the speedometer and where is it located. This could be due to two reasons. 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. If your Mercury Grand Marquis’s speedometer is not working, it’s usually going to be caused by an issue with the VSS (vehicle speed sensor), or a bad ECU. Tsukasa’s blog is one of the best resources for information about keeping your favorite imported car running smoothly. 23%. of the time it's. It happens due to a faulty sensor that cannot process the information received from the ECU. Faulty readings. The entire ECU needs replacement. 35%. Because the transmission is shifting fine I feel like its not a sensor issue. A modern vehicle’s speedometer takes the input from the Vehicle Speed Sensor and sends that data to the ECU. You also have the option to opt-out of these cookies. .AnswerIf your speedometer is not working, it is probably the speed (distance) sensor. The wires can short or worn out in an older car and cause the fuse to blow out. In an older speedometer that is cable driven, the cable could have broken. If neither of these indicators is working, then the problem may lie within the speed sensor on your vehicle. The rate at which your tires cover ground changes and if the speedometer is not calibrated accordingly, it can show a faulty reading. While there are a variety of reasons your Chevrolet Astro speedometer is not working, the most common 3 are the vehicle speed sensor (VSS), a faulty speedometer, or an electrical issue. The speedometer shows wrong readings because it is calibrated to the dimensions of the factory-fitted tires. The speedometer determines the vehicle’s speed by drawing information from the transmission and driveshaft. Speedometer. When you spin it you must have a signal between 5 and 8 Volts. Reattach the hose, air cleaner and electrical connector on to the sensor. Problems with the inbuilt computer will require replacement. Typically, these malfunctions are caused by an issue with a car's wiring, a broken gear in the speedometer … Odometer and Speedometer not Working. Now, take it out and see if the cruise control still works. It also causes the speedometer behaving erratically. Whether you have a digital or manual speedometer, if it's not displaying accurate information, it doesn't really help you. A speedometer may stop working due to a bad sensor. I replaced the cable but then the speedometer only bounced when it wa But opting out of some of these cookies may have an effect on your browsing experience. This could be dangerous on a road where driving at a low speed is essential for safe driving. Speedometer Not Working Causes: Kia Sportage. It is mandatory to procure user consent prior to running these cookies on your website. Mine wasn't working but I had a good signal from the paddle-wheel. A speedometer that is not working fails to translate this information and can be a potential risk to drivers. What Causes A Knock Sensor To Go Bad? Remember to rotate the ignition key to the ‘Auxiliary’ position after the installation of the new unit. Speedometer. Attach the electrical connector to it, and tighten it. A Detailed Analysis to the Mechanism of Speedometers, my speedometer stopped working how do i fix it, what causes the speedometer to stop working, 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]. ~ You will find the speed sensor on the driver’s side behind the transmission.~ Raise the vehicle up from the driver’s side using a car jack.~ Remove the wheel.~ Disconnect electrical connectors present on the sensor and remove bolts, keeping the sensor in place, using a socket.~ Remove the sensor carefully, and fix a new one in its place. Click here!!! We've created informative articles that you can come back to again and again when you have questions or want to learn more! You will see a thick black wire leading into the instrument cluster, this is the speedometer cable.~ Take out the bolt from under the dashboard, so that you can easily access the old cable.~ Also, remove the nut on the transmission and pull the cable out through the passage. A speedometer repair or replacement can be done in your own garage. Also I put my Snap-On scanner on it and it has input and output speed readings, but no vehicle speed reading. 35%. Using a code scanner to examine the error codes is the first step to reach the root of the trouble. Frequent changes in the readings. We hope you enjoy this website. In older cars a break in the cable that connects the transmission to the speedometer is the most common cause. 000569, Member of Tokyo Chamber of Commerce Boueki - 201650, Car Speedometer Not Working – Symptoms, Causes, and Fixes, How to Find out a Faulty Canister Purge Solenoid, What Is HOAT Coolant? 17 Posts . Any thoughts on what part might be nee I just bought a 97 600XC. Also you've to check if you have 12 volts at the plus wire on your speedometer. Speedometers are calibrated according to the radius and diameters of the factory-fitted tires of your car. Home / World View / What Causes My Speedometer Not to Work? It’s obvious that the speedometer may give wrong readings in case of certain ECU problems. Reasons and Solutions are Here. Cars produced after 1990 are usually equipped with speed sensors, which may crash and cease to transmit speed readings to the speedometer. A problem that occurs with digital speed sensors is that they may malfunction and stop sending data to the car’s computer. A ‘check engine’ light is a serious issue on its own and must be checked immediately. A signal originates from a driven gear that meshes with the transmission tail shaft. It monitors and controls multiple engine activities, including speed. Speedometer. The wires can short out for many reasons, causing the fuse to blow out and stopping the operation of the speedometer. Safety on the road depends on many factors and maintaining the right speed limit is one of them. of the time it's. Essential Tips for Maintaining a Car You Rarely Use, Safe Driving Tips Every Car Owner Should Know. of the time it's . Common reasons for this to happen: Broken Speed Sensor: A speed sensor has many purposes including indicating the speed of the vehicle, regulating flow of fuel and ignition timing, and operating the cruise control. 23%. You can reset it but it will only be a temporary fix. Is Driving Safe Then? A failed speedometer poses a potential safety threat. Bought it like this, but am wanting to get it fixed now. A speedometer is an instrument which provides the driver with instantaneous readings of speed. Connecting the scanner to the ECU will help to pinpoint the failed components. This could be dangerous on a road where driving at a low speed is essential for safe driving.