one headlight turning on when car is off and loud clicking in the engine

Hi,

We need to determine where the sound is coming from. This vehicle has an integrated power control module. (TIPM). Something could have a bad connection there.

I attached the entire wiring schematic below for the headlamps. Take a look through it. I don't see how it is related to the other work you've done, but anything is possible. I had to cut the pic in half to make it readable, but I did overlap them so you could follow them.

See if you can tell if the sound is coming from the TIPM, which is under the hood on the left side of the engine compartment.

Let me know what you find or if you have other questions.

Take care and God Bless,

Joe