Why is the tire pressure monitoring screen not lighting up?
2 Answers
The reason the tire pressure monitoring screen is not lighting up is: the tire sensor has malfunctioned. Its functions are: 1. Preventing accidents; 2. Extending tire service life; 3. Making driving more economical; 4. Reducing wear on the suspension system. Instruments for measuring tire pressure include: 1. Tire pressure monitoring system; 2. Handheld tire pressure gauge; 3. Pressure gauge integrated with an air pump. The principles of tire pressure monitoring are: 1. Direct tire pressure monitoring devices use pressure sensors installed in the tires to measure tire pressure, transmitting pressure information from inside the tire to a central receiver module via wireless transmitters to display the tire pressure data; 2. Indirect tire pressure monitoring works by detecting when a tire's pressure decreases, causing the vehicle's weight to reduce that wheel's rolling radius, and then comparing the rotational speed differences between tires to monitor tire pressure.
Tire pressure monitoring screen not lighting up? I've seen this a lot. The most common issue is a blown fuse - it's in the engine compartment fuse box, and the specific fuse for TPMS tends to burn out. The screen's backlight or LED might be faulty, especially in older models where components age. Loose wiring or open circuits can cause signal loss, particularly on bumpy roads. If the tire pressure sensors aren't transmitting signals, the screen stays dark. When the car battery voltage is low, the entire system may go into sleep mode and shut down functions. Recommendation: First check the fuses (the manual has location diagrams); if that doesn't work, inspect for loose screen connectors. Safety first - don't gamble on highways, get to a repair shop quickly for a diagnostic scan to pinpoint the issue.
