PDA

View Full Version : 0411 PCM A/C Signal Check



SuperStepside
December 9th, 2025, 01:33 PM
Hi all, can anyone check to see what a/c request signal my tune has? I need a 12v analog signal request. The PCM isnt grounding the relay control wire(pin43) so I figure I might have the wrong a/c request signal setting. Im reading that you can change this in HPTuners/TunerCat but not Efilive. I have an 0411 PCM running a 6.0LQ4 with a 1270003 cos3 tune. Thanks

nonnieselman
December 17th, 2025, 05:48 PM
I cant open it cause your using a newer software version.
Ill look at it on the other computer later.


But you can use PCM Hammer to read the tune and tuner studio to make the changes for free.