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Fuse 14???

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Old Feb 21, 2023 | 04:04 PM
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Default Fuse 14???

I have a 2017 F150 XLT SCab with 100k miles. I came out to my truck being completely dead this weekend, charged it up and figured out the battery was toast. I replaced the battery chalking it up to service interval as 7 years and 100k seemed like a reasonable time to replace it. After installed the battery, it started up and ran fine.

Come today, I go out to start it and its completely dead again. I tested voltage drop across the various fuses and found 3 separate fuses drawing current, see chart below.

What does fuse 14 power? I cant find any info online about it other than "Amplifier". Thanks in advance!




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Old Feb 21, 2023 | 04:11 PM
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BJB Fuse-14 (20 A) powers the DSP (Digital Signal Processor) and the subwoofer amplifier if so equipped.
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Old Feb 21, 2023 | 04:13 PM
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Thank you. I use my rear speaker wires to trigger the remote turn on for a kicker hideaway. Power is tied directly to the battery + terminal, and ground is direct to chassis. Do you think a faulty kicker unit would draw this power from that fuse?
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Old Feb 21, 2023 | 04:15 PM
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Originally Posted by tjleonard98
Thank you. I use my rear speaker wires to trigger the remote turn on for a kicker hideaway. Power is tied directly to the battery + terminal, and ground is direct to chassis. Do you think a faulty kicker unit would draw this power from that fuse?
Disconnect it and see if your problem goes away.
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