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Discussion Starter #1
2009 enclave cxl fwd. No start. Code P0627. Initial issue before this problem was bad fuel pump. Replaced fuel pump, still no start. Code for no communication fscm. Had the fscm replaced. Cranked and then shut off immediately. Code P0627 open circuit fuel pump A. Replaced wire harness due to rodent eating wires. Still codes P0627 and no start. Does anyone have any ideas?
 

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Discussion Starter #3
The entire harness for the gas tank was replaced. I am trying to locate all of the ground wires. I have had the battery grounds cleaned and also the alternator ground cleaned. Are there more ground wires that can create the open circuit? Thank you for your assistance.
 

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2015 Enclave Leather.
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There is a connector outside, under the drivers seat which has been known to give trouble with a no crank condition.
 

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There is a connector outside, under the drivers seat which has been known to give trouble with a no crank condition.
Which connector do you know? What is it actually connected to? Is there a diagram showing the location? Does the connector have a specific name. Thank you for the information.
 

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2015 Enclave Leather.
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The only one down there by the drivers seat, I don't have the wiring diagram on this computer.
 
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