Yes. If this switch is not telling the PCM that the vehicle is in park or neutral, then it will not start the engine.
If this is the case, then we need to start with using the wiring diagrams above to test for voltage at the starter on both wires. If you are not getting it then we need to go back in the circuit and find where you are losing it.
It very well could be this switch so follow the testing above to make sure it is producing the correct voltage in each position.
Let us know what questions you have on this. Thanks
Friday, November 5th, 2021 AT 4:36 PM