Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.The code P0573 in most cases is set due to a failing Stop Lamp Switch which can affect the cruise control as well. In order to determine if the switch is the source of your problem you are going to need to do some testing. I have enclosed the steps in the link below. Copy and paste the link to your browser to open and view the steps.https://dl.dropboxusercontent.com/u/104923897/P0573%20Dec%205.pdf
Yes the break light can work and not send the signal to the cruise system. The only why to know would be to do the test steps.
Okay then the next step would be to scan the computer system with your scan tool and see if there are any fault codes setting.
The active code P0573 is the one you need to address first as I mentioned in my first response, did you ever check the steps I sent you then?
Okay then the next step is to run through the long version pinpoint test for the code P0573 See it in the link below.https://dl.dropboxusercontent.com/u/104923897/P0573%20Dec%208.pdf
See the diagram in the link below.https://dl.dropboxusercontent.com/u/104923897/crusie%20control%20Dec%209.pdfhttps://dl.dropboxusercontent.com/u/104923897/Stop%20lamp%20circuit%20Dec%209.pdf