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U1040 Diagnostic Trouble Code Discussion for April 2007

Lost Communication With Antilock Brake System Module


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Trouble Ticket Help Requests for DTC U1040
Help Request Posted
2000 Pontiac Grand Am SE 2.4L No Start VIN: 1G2NF12T6Y
U1040: Lost Communication With Antilock Brake System Module. We have had this vehicle for some time, customer finally traded in after so many problems diagnosing this concern. Withscan tool connected fuel pump relay isnt engaging all the time, when fuel pump relay is in off state vehicle wont start, intermittantaly the ...
April 20, 2007
2000 Pontiac Grand Am SE 2.4L No Start VIN: 1G2NF12T6Y
U1040: Lost Communication With Antilock Brake System Module. We have had this vehicle for some time, customer finally traded in after so many problems diagnosing this concern. Withscan tool connected fuel pump relay isnt engaging all the time, when fuel pump relay is in off state vehicle wont start, intermittantaly the ...
April 20, 2007