No brake pressure after replacing the power brake actuator?

Tiny
LOCHOW2021
  • MEMBER
  • 2007 TOYOTA PRIUS
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
I asked a mechanic to help replace the power brake actuator, but he told me the brake doesn't work even after the bleedings. And he told me a scan tool is required to make it work. He asked me to bring the car to the dealer to reset it because he doesn't have the scan tool. Is a scan tool a must? I saw some videos saying no scan tool is required. Does anyone here know what to do?
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Tuesday, September 27th, 2022 AT 8:56 AM

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Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,544 POSTS
Yes, so what happens is air gets trapped inside the ABS controller and the only way to remove it is to connect a scanner and open the ABS valves while bleeding the system.

Check out this video which shows you how the job is done:

https://youtu.be/nQRnKyVyMuQ

Please let us know if you need anything else to get the problem fixed.
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Tuesday, September 27th, 2022 AT 11:44 AM

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