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U0109 Diagnostic Trouble Code Discussion for April 2019

No comm with fuel pump module

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Trouble Ticket Help Requests for DTC U0109
Help Request Posted
2007 Chevrolet Silverado 1500 LTZ 6.0L No Start VIN: 2GCFK13Y17
U0109: No comm with fuel pump module. So i have this one here that came in for no start. Thought it to be the fuel pump so installed pump and still no start. Started checking fuses found no power to number 21 fuse for fuel pump. swapped relay for fuel pump. No change jumped fuel pump relay and...
April 22, 2019