Engine/Transmission (1998.5 - 2002) APPS Update, HELP!

[CumminsFarmer]

Hey guys, for all 21 of you who read my previous post, Im having troubles with the APPS. Well here's whats been tried so far. I limped the rig up to cruise control speed and then drove by the buttons to a shop in a neighboring town. Cleared the codes and test drove, happened again. No problem, put a new APPS on, cleared the codes, test drove, happened again! Came back, checked all voltages and everything was fine. Found moisture in the ECM wiring harness, AHA! Dried it up, put dielectric grease in, cleared codes, test drove, HAPPENED AGAIN!

At this time, Im stumped. Im going back over tomorrow to troubleshoot some more, if you guys have any input, please indulge me!



Thanks, Cole.

 

[Devan Manis]

what are the codes?

 

[mhenon]

If you found moisture in the ECM plug then you might check all of your connectors. Wouldn't hurt to start pulling ground wires and check for good contact to ground.

Mike

 

[CumminsFarmer]

Codes were the standard 1693, and then 0122. Low voltage to APPS. Tomorrow I'll start by checking the PCM connections and then chasing grounds.