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U1040 Diagnostic Trouble Code Discussion for October 2012

Lost Communication With Antilock Brake System Module


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Trouble Ticket Help Requests for DTC U1040
Help Request Posted
2008 Pontiac Grand Prix 3.8L abs traction
I have a communication error . Scanner seems to communicate ok. I have pulled apart the bus connector 205 and checked for shorts to ground and continuity. All were 4k-6k. I have never did a bus communication so I am a virgin here. I would presume there is a pr...
October 30, 2012
2008 Pontiac Grand Prix 3.8L abs traction
I have a communication error . Scanner seems to communicate ok. I have pulled apart the bus connector 205 and checked for shorts to ground and continuity. All were 4k-6k. I have never did a bus communication so I am a virgin here. I would presume there is a pr...
October 30, 2012