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Where to Find Stoplight Circuit in 2018 Chevy Express Van Cutaway for Brake Controller  

Updated 10/22/2025 | Published 04/02/2025

Question:

I have a 2018 Chevy Cutaway Van and Im having trouble finding a trailer brake control for it. The brake pedal switch is run by a 5v signal and most of the brake controls are 12v. Could you tell me what I need to wire a control in please. Also, the van is not wired for trailer brakes. Thank you!

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Expert Reply:

Hey Ryan, when we installed a brake controller in a 2019 Chevy Express Van similar to yours we actually used a fuse tap under the hood for the brake switch circuit. If you fast forward to the 15 minute mark of the video I attached on this page you'll see our installer Shane point out which fuse he used.

The fuse tap he uses in the video is the part # 3375601000.

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Jameson C
Jameson C. profile picture

Jameson C.

10/22/2025

Hey Ryan, how did things go with wiring the brake controller using the fuse tap under the hood? Your update could make it easier for others working on a similar Chevy van setup.

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