Ram Truck 1500, 2500 & 3500 (2006-2008)

5.9L L6 VIN C Auto 9

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Trouble Code: U0103



Lost Communication With Electric Gear Shift Module

Possible Causes:



CAN C Bus failure open or shorted
 
Electric gear shift module has failed
 
PCM has failed
 

Trouble Code: U0104



Lost Communication With ACC Module

Possible Causes:



CAN C Bus failure open or shorted
 
PCM has failed
 

Trouble Code: U0121



Lost Communication With ABS Module

Possible Causes:



CAN C Bus failure open or shorted
 
ABS module has failed
 
PCM has failed
 

Trouble Code: U0140



No Body Bus Message

Possible Causes:



Communication link with BCM has failed
 
PCI Bus circuit open
 
PCM has failed
 

Trouble Code: U0155



No Cluster Bus Message

Possible Causes:



Communication link with instrument cluster has failed
 
Instrument cluster operation improper or has failed
 
PCM has failed
 

Trouble Code: U0168



No SKIM Bus Message

Possible Causes:



Intermittent operation
 
PCI Bus circuit open or shorted from PCM to SKIM
 
Loss of communication between PCM and SKIM
 
SKIM or PCM has failed
 

Trouble Code: U110A



Lost Communication With Steering Control Module (SCCM)

Possible Causes:



CAN C Bus failure open or shorted
 
SCCM module has failed
 
PCM has failed
 

Trouble Code: U110C



No Fuel Level Bus Message

Possible Causes:



PCI Bus circuit open between PCM and BCM
 
Fuel level Bus message circuit failure
 
BCM has failed
 

 
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