HomeGMC GMC Select Your GMC's Diagnostic Trouble Code Body Codes B101D;Home GMCU1511 00 GMC DTC U1511 00 Make GMC Code U1511 00 Definition Interdevice Dedicated Bus Lost Communication With Device 1 Description The system voltage is between 916 V Cause U1500 01;Perform a preliminary inspection Sometimes U0155 can pop up intermittently, or it can result from a dead battery This is especially true if the code is a history code and not current Clear the code and see if it returns If it does, the next step is to perform a visual inspection
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