Equipment & Gear > Power Equipment & RV
Dealership question for auto repair
EnglishSetter:
--- Quote from: jackelope on February 22, 2025, 11:13:40 AM ---
--- Quote from: EnglishSetter on February 22, 2025, 09:57:42 AM ---
--- Quote from: jackelope on February 22, 2025, 09:03:41 AM ---Negative.
The right thing for any dealership to do if the pcm was modified aka tuned is to not touch it. It will more than likely put the truck into limp mode.
As much as I hate to admit it, we did that one time not knowing the pcm was tuned. Truck had zero throttle. It would idle but that’s it. Had to have it towed to a diesel performance shop and fortunately they were able to recover the tune that was in the truck and get it running again.
I’ll add that I don’t know why anyone would have to do anything to the pcm to fix your backup sensors.
--- End quote ---
He does state Chrysler has an update for the ECM. Not that the ECM would be flashed to correct the parking sensor issue.
Then again, the computer operates a lot of things. My old company truck's infotainment ran through the computer.
I'd prolly speak to the service manager at Dodge and ask if the reflash could be avoided. Or avoid dealers altogether.
--- End quote ---
There are probably 15 “computers” in the truck unless it’s 25 years old, but since it has backup sensors I’m assuming it’s a newer truck. Park sensors would be run through a body control module. When he says “ECM” I’m assuming he’s referring to what is mostly now referred to as a PCM AKA powertrain control module.
Nothing would be done to modify the body control module that has to do with performance, tuning etc. and nothing would run through the PCM that would control the park sensors.
You’re calling the setup in your company truck an infotainment system. That’s a Ford term so maybe it was a Ford. That system runs through an audio control module if it was a Ford.
--- End quote ---
Well it was a Chevy (1/2T Silverado). I don't even recall what the issue was. I think a black screen The "fix" was a flash. Do they reflash modules? I've had one replaced in my C6. Infotainment was meant generically. The screen provided both entertainment and vehicle data.
But back to OP's concern: That if the vehicle was brought to Dodge that the PCM/ECM would be reflashed as policy vs specific repair. The service manager should be able to answer that. They know a lot of trucks get "tuned".
jackelope:
Gotcha. Yeah. Individual modules get updated all the time. I’m not sure why anyone would have any sort of policy about updating modules for no reason. We don’t. I’ll take tuned vehicles in without issue. Just won’t mess with anything that involved the PCM.
Not sure if it makes a difference, but I am a Ford dealership service manager. Been in the dealership business for 25 years.
jackelope:
Crunchy-
Is the update they’re telling you about intended to fix your backup sensors? Sounds like maybe it’s a recall if you’re getting communications from Chrysler about doing it.
Crunchy:
--- Quote from: jackelope on February 22, 2025, 12:16:23 PM ---Crunchy-
Is the update they’re telling you about intended to fix your backup sensors? Sounds like maybe it’s a recall if you’re getting communications from Chrysler about doing it.
--- End quote ---
no its an emmisions type update
Crunchy:
--- Quote from: jackelope on February 22, 2025, 12:05:43 PM ---My point I guess is that you should be able to get your backup sensors fixed without messing with your tune.
--- End quote ---
yes but I don't know if I can trust the Chrysler service dept to NOT update anything with the ECM period. No matter how many times I tell them.
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