Leo
 

I have a 2001 Dodge 3500 with a 5.9L turbo diesel. My Hypertech Power Programmer reports a DTC of U3EFE. Can't find what it is. Please Help. Thanks. Leo

U3EFE= Unidentified by ecm/pcm


The first character identifies the system related to the trouble code.
P = Powertrain B = Body C = Chassis U = Undefined
The second digit identifies whether the code is a generic code (same on all OBD-II equipped vehicles), or a manufacturer specific code.
• 0 = Generic (this is the digit zero -- not the letter "O")
• 1 = Enhanced (manufacturer specific)
The third digit denotes the type of sub-system that pertains to the code
• 1 = Emission Management (Fuel or Air)
• 2 = Injector Circuit (Fuel or Air)
• 3 = Ignition or Misfire
• 4 = Emission Control
• 5 = Vehicle Speed & Idle Control
• 6 = Computer & Output Circuit
• 7 = Transmission
• 8 = Transmission
• 9 = SAE Reserved
• 0 = SAE Reserved
The 4th and 5th digits , along with the others, are variable, and relate to a particular problem

Thank you. Leo