Zep40boy
Junior Member
Hey Guys, my Battery on my 12 ram has been ******** the last few months, jumped it last week.. it was in the teens and I'm sure the battery was a little froze but I needed to move it... after LOTS of boosting.. it. started up... but now no throttle (drive by wire)
Changed out battery, checked all under hood fuses... tried putting a throttle body on but that didnt do anything.
At this point I had tried every throttle relearn procedure I could find online... I see the CEL flash which I think that means it was successful.
Reading the data stream it looks like theres a couple dead spots in the throttle pedal. I've never had an issue before this but I'm wondering if I fried something when I jumped it
Theres like 2 pedal position sensors on the pedal, and the same sensor drops out around 25% and 37% consistently.. but it will do a complete % sweep starting at 0%
So tried putting the new pedal in and it didnt work. But I tried 4 different ways of doing the relearn, and the values are stuck at 49%. No sweeping, just constant 49% on both sensors.
Between yesterday and today I have a **** ton more codes too. I'm wondering if i fried the pcm. Everything I've read, when the ETC light comes on in these, top replacement is the throttle body, then the pedal, then pcm. Well, I've ruled out T.B. and the pedal (sort of) I may try and find someone with a scan tool to stop out and do the relearn on the scan tool. For some reason it's not working with the steps I've found... so before I do the pcm (which I think it may be anyway because it keeps getting random ass codes) I have to get the relearn for sure done correctly.
You'll see throughout the pictures of the codes, there gets to be more and more added. The last ones are from today.
I'm thinking alot of the original hard codes are from when I was trying to start it with low battery voltage.
Every evening I disconnect the battery cable hoping it will somehow reset itself but nothing yet.
The truck sits alot so I inspected the wire harness and found nothing bad.
When I start the truck, it always runs great, even with the new throttle pedal, idles good and smooth.. just no throttle
Why isnt my truck doing the relearn? Why do I have all these random codes?
Changed out battery, checked all under hood fuses... tried putting a throttle body on but that didnt do anything.
At this point I had tried every throttle relearn procedure I could find online... I see the CEL flash which I think that means it was successful.
Reading the data stream it looks like theres a couple dead spots in the throttle pedal. I've never had an issue before this but I'm wondering if I fried something when I jumped it
Theres like 2 pedal position sensors on the pedal, and the same sensor drops out around 25% and 37% consistently.. but it will do a complete % sweep starting at 0%
So tried putting the new pedal in and it didnt work. But I tried 4 different ways of doing the relearn, and the values are stuck at 49%. No sweeping, just constant 49% on both sensors.
Between yesterday and today I have a **** ton more codes too. I'm wondering if i fried the pcm. Everything I've read, when the ETC light comes on in these, top replacement is the throttle body, then the pedal, then pcm. Well, I've ruled out T.B. and the pedal (sort of) I may try and find someone with a scan tool to stop out and do the relearn on the scan tool. For some reason it's not working with the steps I've found... so before I do the pcm (which I think it may be anyway because it keeps getting random ass codes) I have to get the relearn for sure done correctly.
You'll see throughout the pictures of the codes, there gets to be more and more added. The last ones are from today.
I'm thinking alot of the original hard codes are from when I was trying to start it with low battery voltage.
Every evening I disconnect the battery cable hoping it will somehow reset itself but nothing yet.
The truck sits alot so I inspected the wire harness and found nothing bad.
When I start the truck, it always runs great, even with the new throttle pedal, idles good and smooth.. just no throttle
Why isnt my truck doing the relearn? Why do I have all these random codes?