98 C230 Black

TPS hook up


This vehicle is a drive by wire, meaning that it has an electric motor that drives the throttle body. However, you can test a TPS located near the hood hinge area. Connect your positive scope lead to the Purple and yellow signal wire. Do a KOEO test. Note that since this is a computer controlled throttle, you will not be able to make a full sweep of the TPS because the PCM limits the sweep it will allow. This is still ok for your lab work, just not that you are working on a drive by wire car.

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