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P0615 Diagnostic Trouble Code Discussion for October 2020

Starter Relay Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0615
Help Request Posted
2013 GMC Sierra 1500 SLE 5.3L No Start VIN: 1GTR2VE79D
P0615: starter relay control circuit. ... inherited this from trans shop next door. they replaced the unit and now it doesn't start . I'm trying to diag the codes above, and getting stuck on some of the theory. Checking power and grounds at the pcm, I have 9.5v at pin 47(ckt 1339, pink/bk) whi...
October 20, 2020