There are two sensor-side ways to test TPS units. One is by disconnecting the harness, and checking for variable resistance using the ohms function of a multimeter.

The throttle position sensor (TPS) on a vehicle does just what the name suggests: it measures how far down the gas pedal is depressed. In the days before cars had computers there was no TPS. With the ...

Learn when TPMS sensor replacement is needed, how sensor modes work, and tips for troubleshooting signal issues in the shop.