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Reading Wiring Diagram

Discussion in 'Electrical' started by Sierra, Apr 23, 2025.

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Apr 23, 2025 at 11:34 AM

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Sierra [OP] New Member

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Aug 31, 2024

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Hi,

I was able to figure out what most of the abbreviations are for in this wiring diagram but was unable to find out what the E, B, and FSG represent (Marked with red arrows). Where would I lookup this information? Thanks for your help.

Sierra, Apr 23, 2025

#1

Apr 23, 2025 at 3:14 PM

#2

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BubbaW Blessed 2 B above Ground

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Aug 19, 2019

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Bubba

Where Eagles Nest

Vehicle:

04 DC LTD 4X4 4.7 V8

T150 Lover

An E represents a ground
B, B+, BATT are battery voltage
That FSG signal is a ground also once the Fuel OPN relay energizes. My guess is that F is fuel considering what component it's part of(Fuel Door Wiring), G for ground since that is the signal at that point. S, I have no clue.

BubbaW, Apr 23, 2025

#2

Apr 24, 2025 at 2:52 PM

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Sierra [OP] New Member

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Thank you.

Sierra, Apr 24, 2025

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BubbaW likes this.

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