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U1040 Diagnostic Trouble Code Discussion for February 2009

Lost Communication With Antilock Brake System Module

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Trouble Ticket Help Requests for DTC U1040
Help Request Posted
2003 Buick LeSabre Custom 3.8L Cuts out, Stall VIN: 1G4HP52K23
U1040: stored fault-loss comm with EBCM. hello thanks in advace. Need help with this buick. car towed in .car starts fine and runs fine with no problem. soon place trans in gear engine stalls out. it will stay running if bring the RPM up to 1500 in gear and it does same thing in reverse. it almost li...
February 23, 2009