How To Test Tpms Sensor Battery

Tire pressure sensors work with the tire pressure monitoring system on many passenger vehicles.

How to test tpms sensor battery.

Each tire has a sensor. When this warning lamp illuminates on your instrument panel at least one of your tires is 25 percent below its correct pressure. Rigney cautions that it s difficult to interpret the scanned data because the readout could be a battery life percentage or a one. Put the key in the ignition and turn it to the on position but do not start the car.

Use your vehicle s tpms reset button. Tire pressure monitoring sensors are usually powered by a 3 volt lithium ion battery. These sensors show the driver the psi pounds per square inch of pressure in each tire by displaying the readings on the vehicle s instrument panel. Some tpms sensors use a 1 250 volt nickel metal hydride battery.

Playing an important role in tire pressure monitoring system tire pressure sensors help you to warn about the under inflated or over inflated tires in your vehicle there are basically two kinds of tire pressure monitoring system direct tpms dtpms and indirect tpms itpms. When a customer visits a tire dealer a technician can test each tpms sensor s battery life but only if his or her scan tool can display battery life and the pressure sensor is equipped to output that data. Sometimes the sensor system simply needs resetting. It is usually found in cars in the united states.

This tpms sensor uses a lithium battery with a five to 10 year. Check your owner s manual for the location of the tpms tire pressure monitoring system reset button. The indirect tpms has sensors placed on the car s abs brakes and or the speed sensors on each wheel. A battery that is running low on or is depleted requires the replacement of the entire tpms sensor assembly.

There are a couple of ways to check the system. First the system.