P0601 appears even on stock tune
Moderator: sohfast94
P0601 appears even on stock tune
Put an 87 tune on my 2017 Ram 1500- cel came on-- cleared it using the Trinity 2 EX- upon next start it appears again. Rolled back to stock tune- still appearing upon every restart of the truck.
Help?
Dave Weig
[email protected]
2017 Ram Rebel
Hemifever ECU (unlocked)
T2 EX
Help?
Dave Weig
[email protected]
2017 Ram Rebel
Hemifever ECU (unlocked)
T2 EX
-
sbenja2008
- Posts: 61
- Joined: Fri May 31, 2019 5:34 pm
Re: P0601 appears even on stock tune
Possible Causessocket462 wrote:Put an 87 tune on my 2017 Ram 1500- cel came on-- cleared it using the Trinity 2 EX- upon next start it appears again. Rolled back to stock tune- still appearing upon every restart of the truck.
Help?
Dave Weig
[email protected]
2017 Ram Rebel
Hemifever ECU (unlocked)
T2 EX
Error Code P0601 means the PCM has gone bad, which can be caused by a short circuit within the PCM itself, or if wires and connectors from the PCM is disconnected while the battery is still connected. The most common cause of this error code is a faulty or damaged PCM and low voltage to the PCM.
Re: P0601 appears even on stock tune
It runs and drives fine. This only occurred when I flashed my first tune on it. It's a Hemifever ECU.
- MagsTuning
- Posts: 113
- Joined: Fri Oct 11, 2019 1:17 pm
- Location: Tifton GA
- Contact:
Re: P0601 appears even on stock tune
It's a knew issue and DS is working on it.
If it's throwing a CEL your tuner can kill the light for now.
If it's throwing a CEL your tuner can kill the light for now.

Re: P0601 appears even on stock tune
Thank you.. yes, I can clear it- it comes back on next start. Annoying but manageable.
- mikel
- Posts: 58701
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: P0601 appears even on stock tune
Please post the last tune written from the tunes folder on the device and I will fix this for you.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
Re: P0601 appears even on stock tune
My tunes folder was empty-- so I flashed the 91 octane canned tune. I opted for TC off and MDS off. It seemed to flash fine- but when I started it BOTH MDS and TC were not off-- they were working as normal. weird..
Attached is the tune file for this
Dave
Attached is the tune file for this
Dave
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- mikel
- Posts: 58701
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: P0601 appears even on stock tune
the mds is off inthe file, what makes you believe it is not disabled?
Please load the attached custom tune to the root of the i3 drive then to the truck and it should be fine.
Thanks
Please load the attached custom tune to the root of the i3 drive then to the truck and it should be fine.
Thanks
You do not have the required permissions to view the files attached to this post.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
Re: P0601 appears even on stock tune
I figured the MDS was still on because the ECO light still lit up and off.
I have a T2 EX- not an I3. Was that just a typing error?
Thank you for the quick responses.
Dave Weig
I have a T2 EX- not an I3. Was that just a typing error?
Thank you for the quick responses.
Dave Weig
- mikel
- Posts: 58701
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
Re: P0601 appears even on stock tune
eco is not MDS 
eco just means you arent driving it hard enough!
My mistake, same process for i3 or t2.
Thanks
eco just means you arent driving it hard enough!
My mistake, same process for i3 or t2.
Thanks
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
Re: P0601 appears even on stock tune
lol... I need to wear heavier shoes! I will try this tune. Thank you!
Dave
Dave