Cummins ISX fault codes jake not working, help please

Ok, couple of things... Any code with an "A" means it is an active code. "P" mean previously active, or not happening right now, (historic). Secondly, the LCD display does not show codes properly and should never be used for troubleshooting. The display will show the wrong code numbers and codes from modules that do not even exist. Troubleshooting needs to be done with a proper scan tool with proper software, or you can be chasing a ghost. MID 128 is from the engine, MID 136 is from the ABS. MID 92 is unknown. International tells us to never use the LCD display for diagnostics. Do you have an ABS light on at all? If the display is accurate, it is showing an active ABS fault for the right steer sensor air gap too large. It may be possible your truck has traction control, which is disabled when there is an active ABS fault, and the engines brakes may also be disabled from this. This is why it is important to use the proper scan tooling. The devices all use actual trouble codes, and the LCD display shows faults in SAE format. The conversion from trouble codes to SAE is sloppy and full of errors. Here is some more information in the LCD display if you want;
http://www.thetruckersreport.com/tr...nal-forum/204043-fault-codes.html#post3094907

 

Hey, bringing this thread back up. 2006 9400i with isx. Jake not working after shop replaced the timing cover and I have the following codes.

Mid 128:f03
Sid082p
Sid029p

They become active when I turn the Jake switch on

 

Check the Jake harness to the pass through on the left side of the engine, about half way from front to rear on the head just below the rocker cover.