How To Test Tpms Sensor Battery

Each tire has a sensor.

How to test tpms sensor battery.

Rigney cautions that it s difficult to interpret the scanned data because the readout could be a battery life percentage or a one. When this warning lamp illuminates on your instrument panel at least one of your tires is 25 percent below its correct pressure. Sometimes the sensor system simply needs resetting. There are a couple of ways to check the system.

Tire pressure sensors work with the tire pressure monitoring system on many passenger vehicles. 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. The indirect tpms has sensors placed on the car s abs brakes and or the speed sensors on each wheel. Some tpms sensors use a 1 250 volt nickel metal hydride 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. Put the key in the ignition and turn it to the on position but do not start the car. Tire pressure monitoring sensors are usually powered by a 3 volt lithium ion battery. However the direct tpms is most likely to malfunction due to bad weather conditions.

It is usually found in cars in the united states. These sensors collect information and send it to the car s on board computer. A battery that is running low on or is depleted requires the replacement of the entire tpms sensor assembly. The battery is encased in the sensor s molded plastic housing.

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. First the system.