The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - ECM-B fuse blown, no start!!

ChevyTech · 01-17-2013, 09:14 PM

Below I have attached a link of a schematic that may help you understand the circuit.
According to the schematic the system would set a code 54 if the inline fuel pump fuse was blown.

I am not positive this schematic is accurate for your truck, but I think it is.
http://www.justanswer.com/chevy/1om1...-350-just.html

Look at the schematic and notice if you put power into terminal G of the ALDL connector with the KEY OFF the fuel pump should run. This is a good test to see if the wiring and grounds are ok all the way back to the fuel pump.

This link will show you which terminal to put power in.
http://www.obd-codes.com/faq/read-gm...codes-free.php

01-17-2013, 09:14 PM	#15
ChevyTech Registered User Join Date: May 2004 Location: Minnesota Posts: 4,620	Re: ECM-B fuse blown, no start!! Below I have attached a link of a schematic that may help you understand the circuit. According to the schematic the system would set a code 54 if the inline fuel pump fuse was blown. I am not positive this schematic is accurate for your truck, but I think it is. http://www.justanswer.com/chevy/1om1...-350-just.html Look at the schematic and notice if you put power into terminal G of the ALDL connector with the KEY OFF the fuel pump should run. This is a good test to see if the wiring and grounds are ok all the way back to the fuel pump. This link will show you which terminal to put power in. http://www.obd-codes.com/faq/read-gm...codes-free.php __________________ For those of you that are wondering why you are not getting replies to your thread: Did you give the model, year, engine, fuel system type, and transmission information? If it is modified from what came stock from the factory, let us know that too.