ETC Electronic Throttle TPS Test

E.T.C. Electronic Throttle TPS Tests ...
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The Electrothrottle diagnostic unit seen here is an industry first. It allows you to diagnose and clean electronic throttle control or E.T.C. units by actuating or opening the throttle. That being said, you also need to diagnose or prove the dual throttle position sensors built into the modern electronic throttles. For the purpose of diagnosing the internal TPS, we have created a new unit. It is called, the Blue Voltage Reference Voltage Simulator. The Blue Voltage does exactly that, it simulates the ECM provided sensor voltage. It is a rock solid voltage regulator unit. It is also short proof, so you can short the Blue Voltage Simulator and no damage will occur to it.
The Electrothrottle and the Blue Voltage Simulator are both used in conjunction with each other. Next, we’ll show you how to use the Electrothrottle and the Blue Voltage Simulator, together with a common graphing multimeter or oscilloscope.
First we connect the Electrothrottle to the two motor control terminals. Polarity does not matter, as you will be able to flip the switch and change it later.
Next, we connect the Blue Voltage Simulator ground and 5 volt reference terminals. These two also, for the purpose of testing, can be connected regardless of polarity. WHat you are looking for is the signal output from both of the TPS or throttle position sensors. One signal will go from low or ground to 5 volts, and the other signal will do the opposite. So, connect the ground and 5 volt reference, and do not worry about polarity.
Lastly, you then connect your multimeter, graphing multimeter, or scope, to one of the TPS signal outputs. A graphing meter or scope is the best option, since it is hard to just look at the changing digits on the meter.
As you can see, as we turn or operate the Electrothrottle knob, we see the E.T.C. electronic throttle actuation in action. This is done with the engine and ignition key off. We are now simulating all aspects of the ECM engine control module. We are providing the sensor ground, 5 volt reference, both using the Blue Voltage, and we are also providing the electronic throttle E.T.C. actuation commanded control signal. This is Bi Directional control at its best.
Just remember that most E.T.C. throttle bodies have at least two TPS sensors for redundancy. So, the two signal are going to be inverse to each other.
The Electrothrottle and the Blue Voltage Reference Simulator is an unbeatable automotive diagnostic pair, providing E.C.M. level regulated sensor voltage and and actuation. Enjoy.

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Darnaka Widayat Terima kasih telah berbagi: Thank you for sharing...
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