How To Test Tpms Sensor Battery

The battery is encased in the sensor s molded plastic housing.

How to test tpms sensor battery. Use your vehicle s tpms reset button. Rigney cautions that it s difficult to interpret the scanned data because the readout could be a battery life percentage or a one. The indirect tpms has sensors placed on the car s abs brakes and or the speed sensors on each wheel. Each tire has a sensor.

Check your owner s manual for the location of the tpms tire pressure monitoring system reset button. A battery that is running low on or is depleted requires the replacement of the entire tpms sensor assembly. 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. It is usually found in cars in the united states.

Tire pressure sensors work with the tire pressure monitoring system on many passenger vehicles. These sensors collect information and send it to the car s on board computer. This tpms sensor uses a lithium battery with a five to 10 year. Put the key in the ignition and turn it to the on position but do not start the car.

When this warning lamp illuminates on your instrument panel at least one of your tires is 25 percent below its correct pressure. Some tpms sensors use a 1 250 volt nickel metal hydride battery. Sometimes the sensor system simply needs resetting. 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.

First the system. Tire pressure monitoring sensors are usually powered by a 3 volt lithium ion battery.