RC Vehicle Electronic Speed Control Replacement
Maxwell Limon and 5 other contributors
Last updated on Jul 2, 2025
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Introduction
Go to step 1 ↓If your Electronic Speed Control is no longer working on your Remote Controlled vehicle, use this guide to replace and guarantee your ESC functions correctly again.
The Electronic Speed Control unit sends signals to the remote control to allow the car to move at different speeds. A broken or faulty Electronic Speed Control unit will not transmit the signal to the control, ultimately making your vehicle not able to move.
In this Electronic Speed Control tutorial, I will be showing you how to replace and install your new Electronic Speed Control unit. To complete this guide you will only need a few tools and some household items. This is fairly simple to do and I'm positive you will be able to complete it!
What you need
Tools
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Utility Scissors4.9
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×2
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×2
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Position the car so that the wires are facing upwards.
Ask FixBot
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Unplug the thin bundle of black, white, and red wires.
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Move both ends to the side of the car to clear your workspace.
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Tool used on this step:iFixit Opening Tool$1.99
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Slide an opening tool beneath the red controller unit.
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Pry upwards with moderate force until the controller unit is detached.
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Tool used on this step:iFixit Opening Tool$1.99
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Slide an opening tool beneath the power button.
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Pry upwards with moderate force until the power button is detached.
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Dampen a shop towel with 99.9% pure isopropyl alcohol.
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Rub the dampened towel over any residual adhesive on the car.
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Clean the residue until the surface is smooth.
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Dampen a shop towel with 99.9% pure isopropyl alcohol.
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Rub the dampened towel over the bottom of the controller unit.
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Dampen the shop towel with more 99.9% pure isopropyl alcohol.
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Rub the dampened towel over the bottom of the power button.
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Position the controller unit so that the bottom faces upwards.
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Unwind 1 inch of double-sided adhesive.
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Center the adhesive on the bottom and press down to secure it.
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Tool used on this step:Utility Scissors$5.59
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Trim any excess adhesive from the bottom of the controller unit.
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Smooth the adhesive by rubbing it with your thumb.
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Peel off the red layer from the adhesive attached to the controller unit.
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Secure it to the original spot of the old controller unit.
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Peel off the red layer from the double-sided adhesive attached to the power button.
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Secure it to the original spot of the old power button.
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Locate the thin bundle of black, white, and red wires and reconnect their heads.
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Secure the black, white, and red wires to the frame of your car using two 4-inch zip ties.
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Plug the yellow wire into the connector at the bottom of the motor (Image 2).
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Plug the blue wire into the connector at the top of the motor (Image 3).
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