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U1300 Diagnostic Trouble Code Discussion for February 2006

Class 2 Data Line Short To Ground


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Trouble Ticket Help Requests for DTC U1300
Help Request Posted
2002 Pontiac Montana 3.4L MIL Lamp on VIN: 1GMDU03E42
U1300: data link low in abs module list. With key on, all modules have no codes and data can be read, after starting, will not communicate data with aftermarket scanner (snap-on), and these codes all return. When abs module left out of circuit, all can be read but code u1040 comes back. Have checked ...
February 18, 2006
2002 Pontiac Montana 3.4L MIL Lamp on VIN: 1GMDU03E42
U1300: data link low in abs module list. With key on, all modules have no codes and data can be read, after starting, will not communicate data with aftermarket scanner (snap-on), and these codes all return. When abs module left out of circuit, all can be read but code u1040 comes back. Have checked ...
February 18, 2006