Apps location on 2006

[navyjoe]

I am getting P2127 codes on my 06. It just started a few days ago. Yesterday it really game me a fit surging and bucking. I want to try the APPS connector first and be sure its not just a connection problem. Can anyone tell me where APPS connector is located on my truck?

Also I'm vacationing in the Myrtle Beach SC. Any Cummings repair centers around here?

 

[AEdelheit]

It the pedal assembly, look under the dash you should see it pretty easy

 

[navyjoe]

AE, thanks for the help. After about 5 minutes I figured out how to unplug the connector. (I'm getting too old to bend that way!).
At any rate I unplugged it then reconnected. Nothing looked unusual, so I suspect my problems may return but this is a good start.

I noticed that the unit itself had a snap-on cap. Is it ok to remove the cap and spray with contact cleaner or is it a sealed unit? I understand it is only a rheostat voltage divider that sends a signal to the computer. I've fixed many a similar devices using that method, but I know nothing about this device and don't want to mess with it without advice from others who have experience with it.