My CEL lit up and I found the P1652 code, I did a search to help me figure the P1652 code. Can anyone respond with a decent interpretation of the code. I have seen it as a "IAC monitor disabled by PSP switch failed on" and also something to do with J1850 communications bus. I am just wondering if it is something important to go to the dealer with or just something I can clear with no problem with my Autotap software.

Thanks

 

go to auto zone the will read the code i think it might be something with the fuel like injectores

 

Yes, it's the Comms Bus fault. Have you done anything to any of the comms bus cable lately
It's possible that it's your Boxes that have caused the faults from when you plugged them in. See if yo can get someone to reset the codes then keep an eye on it and see if comes back