KMKDiesel

My buddy has a 2005 cummins. He has had a lot of problems with the truck today going into limp mode and now not starting. It also died once on him driving on the free way here is the list of codes.
p0113 Intake Air / Charge Temperature Sensor High
p0341 Camshaft Position Sensor Performance / Rationality
p0236 Turbocharger Boost Pressure Sensor Performance / Rationality
Do any of you have any ideas on what is going on with it. He was welding on it installing a 5th wheel hitch but said he unhooked the batteries. I am heading over to tow his truck and look at it but hopefully some of you have replied by the time I get back. Thanks in advance.

vzdude

Wiring near the back of the a/c compressor comes to mind. I remember a lot of guys having similar problems and found grounded wiring near the a/c pressure transducer. Shorts out the 5v reference signal that feeds most of the sensors.

KMKDiesel

K just towed his truck to his house he has bully dog so I plugged it in got the same 3 codes he got from the key cycle thing. I cleared the codes a couple times wouldnt clear out they were active. Unplugged it replugged it in and they cleared now there are two more codes in it. U2032 and this one is weird its U20(then a triangle)0. They wouldnt clear tried the same thing as above then they wouldnt read and the key cycle wouldnt pick up anything. Anyone know what the u-codes are.

vzdude

Can't find any U-codes for an 05. here's a list from an 06. Definately sounds like a CAN BUS system problem.


U0001-CAN C BUS CIRCUIT
U0021-CAN B BUS (+) CIRCUIT OPEN
U0022-CAN B BUS (+) CIRCUIT LOW
U0023-CAN B BUS (+) CIRCUIT HIGH
U0024-CAN B BUS (-) CIRCUIT OPEN
U0025-CAN B BUS (-) CIRCUIT LOW
U0026-CAN B BUS (-) CIRCUIT HIGH
U0027-CAN B BUS (-) SHORTED TO BUS (+)
U0100-LOST COMMUNICATION WITH ECM/PCM
U0101-LOST COMMUNICATION WITH TCM
U0114-LOST COMMUNICATION WITH FINAL DRIVE CONTROL MODULE
U0121-LOST COMMUNICATION WITH ANTI-LOCK BRAKE MODULE
U0141-LOST COMMUNICATION WITH FRONT CONTROL MODULE (TIPM)
U0151-LOST COMMUNICATION WITH OCCUPANT RESTRAINT CONTROLLER (ORC)
U0155-LOST COMMUNICATION WITH CLUSTER/CCN
U0156-LOST COMMUNICATION WITH EOM
U0164-LOST COMMUNICATION WITH HVAC CONTROL MODULE
U0168-LOST COMMUNICATION WITH VEHICLE SECURITY CONTROL MODULE (SKREEM/WCM)
U0169-LOST COMMUNICATION WITH SUNROOF CONTROL MODULE
U0184-LOST COMMUNICATION WITH RADIO
U0186-LOST COMMUNICATION WITH AUDIO AMPLIFIER
U0195-LOST COMMUNICATION WITH SDARS
U0196-LOST COMMUNICATION WITH VEHICLE ENTERTAINMENT CONTROL MODULE
U0197-LOST COMMUNICATION WITH HANDS FREE PHONE MODULE
U1108-ADDITIONAL CAN B ECU DETECTED

KMKDiesel

Well checked the wire by the ac compressor allready been fixed, the truck is under warrenty so we are just going to take it to the dealer.

SGTweisbrod

I got same thing going on those 3 codes on my 2003.
U2032
U20>0 which may be U20E0 ?
and 3rd is p3532
All I find is speed sensor -rear, above drive shaft on top of Diff
I see you took to dealer under warranty, what did they fix?