Electronic throttle moto relay

Hi,

The electronic throttle control relay is on when the key is in the run position and not accessory. Power supply for the throttle control motor is provided to the ECM via the throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to the throttle control motor relay, and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to the throttle control motor relay, and battery voltage is not provided to the ECM.

Let me know if this answers your question.

Take care,

Joe

So when the car is idling, the relay stsys on? Or when driving the relay stays on or of? Thanks very much. I have understood the first explaination.

Hi,

When the key is on, the relay has power, regardless if it is running or not.

Let me know how things turn out for you. I'm interested in knowing.

Take care,

Joe

Thanks.

Hi,

You are very welcome. If you have a chance, let me know how things turn out for you or if you have other questions.

Take care,

Joe

I will not hesitate to ask. Your services and guide has improve my understanding and ability to solve problems relating to car technology. I could not have solved so may problems without 2CarPros. I will always come back when i need more ideas. Thanks again

You are very welcome. I don't want you to have more problems, but I do hope to see you again in the future. LOL

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Take good care of yourself,

Joe

Please, could you help me understand what voltages goes to the 6 wired cables which goes into the electronic throttle body.. The red cable when tested with key on and engine running, i notice zero voltage, normally, when the relay stays on, i am suppose to get 5v or 12 volt of the red colored cable which enter the electronic body.

Hi,

I need to get a better understanding. Normally, sensors will receive a 5v reference. I need confirmation of which wires you are referring to.

Let me know,

Joe

The wires which connects to the throttle body itself. They are 6 wires.That goes or fits via a connector to the Throttle body.

Hi,

If you look at the first 8 pics below, I provided the entire powertrain management wiring schematic. I had to cut them in half to make them readable, but I did overlap them so you can follow from one to the next.

Now, I highlighted all six of the wire you are referring to so you can have a visual of where they go and to help check them.

If you look at the very last pic below, it explains what the voltages are for the wires at the TB. For example, it explains to test the voltage to pin 50 on the PCM, which is the white wire between the PCM and the TB (TPS 1). It indicates what the voltage should be based on the throttle position.

If you look at pic 4, it shows the connection you are referring to at the throttle body.

Let me know if this helps or if you have other questions.

Take care,

Joe