Subscribe to a magazine

Testing The Throttle Position Sensor

Back to article View Gallery
8 of 14
To diagnose a faulty tps unit, use a multimeter and watch the screen for any sort of jump in voltage output. A dead spot will cause a numeric inconsistency in the tenths and hundredths when viewing in the 0.00- to 5.00-volt range. Again, go slow, or you won’t see it on the multimeter.

Advertisement