I have a 2020 that I disabled auto start stop with forscan and had no issues until I decided to leave the auxiliary transmission pump out after rebuild. I have a P0C2C code bc of it being missing and I ignored the code in hptuners but it is still giving me the wrench light in the cluster. Can anyone point me in the right direction to change the as built data in the cluster as if it never had auto start stop installed? Thanks much

 

Auto Start/Stop Disable - by disabling BMS (Battery Management System)
BCM 726-48-02 x0xx xxxx xxxx
FCIM 7A7-01-01 xxxx x0xx xxxx (optional - disables switch)
IPC 720-01-01 xxxx 1xxx xxxx (optional - disables stop/start message center in the trip/fuel IPC menu)

 

I believe I have the first 2 of those done. I want to know how to get rid of the wrench message that says "see manual" this pops up because of a P0C2C code due to the 12v trans fluid pump not being reinstalled when I had the trans built. I dont need to disable start stop I need to tell the cluster it wasnt built that way. Thanks

 

I double checked and verified I had all 3 of these done already.

 

There’s a small plug attached to the battery. Pull it. No auto start/stop. You’re welcome…

 

Again my auto start stop feature hasnt functioned in years it has and is disabled in forscan. I am asking how to reconfigure my as built data in the PCM to say that the truck did not come with auto start stop to begin with (when it was manufactured). The reason I want to do this is because I am getting an error message (i.e. see manual) the code is P0C2C and it is coming up bc when I got my trans built I did not reinstall the 12V transmission pump (bc I dont have or want start stop). I want to get rid of the error message. Thanks

 

There is a setting in the power steering column that disables the Auto Start/Stop system. I forget the actual setting name but setting it to "0" makes the system not engage due to "steering event" reasons. In short, the system thinks you're turning the wheel and therefore it never engages... This leaves the BMS otherwise completely intact and functions normally.

 

Again my truck hasnt shut off in years. Because of this I left the auxiliary transmission pump (it runs while the truck is off during an auto stop) out when I had my trans built. I now have an error message bc of it being missing. I am asking if there is a place in the PCM as built data that I can change to let the truck know that it does not have that pump and therefore prevents the error message. Thanks

 

I did a fair amount of research, never could find any way to bypass what you are trying, actually nothing but; don't do it. I understand the 'not needed' for you, I just scratch my head why you removed it? Good luck

 

The built trans that I had put in didnt have it in and the builder said it didnt need to be (which was my preference so it's not on him although I didnt know about the light). Simple as that. Everything works fine just the error message was an oversight and Im not tearing it apart just for that (not to mention I no longer have the pump or the proper harness since that was his core). Not the end of the world. Surely there is a way to change the as built in the PCM. Thanks much