What is the reason why the tachometer of Hyundai Verna does not work?
4 Answers
The reasons why the tachometer of Hyundai Verna does not work are: 1. The flexible shaft connection is disconnected; 2. Wiring problems; 3. There is foreign matter stuck inside the meter, making it unable to move; 4. Problems with the dashboard; 5. The pointer has fallen off. If the tachometer of Hyundai Verna does not work, it is necessary to go to a 4S store or a professional auto repair shop for inspection in time, and then carry out targeted repairs after determining the problem. The Hyundai Verna is a small 4-door 5-seater sedan with a length, width, and height of 4300mm, 1705mm, and 1460mm respectively, a wheelbase of 2570mm, equipped with a 5-speed manual transmission, and a top speed of 170 kilometers per hour.
Last time I encountered a similar situation, it was actually due to a loose wiring harness under the steering wheel. If the tachometer isn't working, the first thing to check is the corresponding 15A fuse in the fuse box, located in the small compartment under the driver's seat. If the fuse is fine, there's an 80% chance it's a faulty crankshaft position sensor—this component is installed at the rear of the engine and specifically sends signals to the tachometer. This issue is most common after the rainy season, as water ingress in the sensor connector can cause poor contact. You can try unplugging the sensor and cleaning the copper contacts yourself. If that doesn't work, take it to a repair shop to read the fault codes. By the way, owners who have modified their steering wheels should pay extra attention to wiring harness contact issues.
Hey, veteran driver shares experience: Hyundai Verna tachometer failure comes in three scenarios. First, if the needle doesn't move at all after startup, 80% chance it's a loose connector behind the instrument cluster - you'll need to remove the dashboard and reseat it. Second, if it suddenly drops to zero while driving but the engine runs normally, most likely it's damaged wiring related to the vehicle speed sensor causing a short circuit. The most troublesome is when the needle gets stuck at a certain position - this usually requires replacing the entire instrument cluster assembly. Last week my neighbor's car had a burnt relay that affected the instrument power supply. When troubleshooting, don't forget to check the OBD port data stream - it can quickly determine whether it's a sensor or the instrument cluster itself that's faulty.
I've researched this issue: First, feel the temperature of the dashboard. If it's hot, the circuit board might be burnt. Focus on checking three areas: the crankshaft position sensor (silver cylindrical object on the left side of the engine), the vehicle speed sensor (top of the transmission), and the wiring harness behind the dashboard. From personal experience, the 2012 Hyundai Verna is particularly prone to signal interruption due to oxidized sensor connectors. A temporary fix is to spray the connectors with WD-40, but in the long run, the parts need to be replaced. Note that if the speedometer fails at the same time, it's likely the vehicle speed sensor is done for. Repair costs are around 200+ for the sensor and 700-800 for the entire instrument cluster.
