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Bleeding the brakes with the ABS modulator

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Old Oct 6, 2019 | 02:50 PM
  #1  
Shipoffools's Avatar
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From: Texas
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Bleeding the brakes with the ABS modulator

I just bled the brakes on my 2016 for the second time and the pedal still feels soft. I've read that on cars that have ABS, there could be some air trapped in the pump. Thinking this could be the issue, I read into it more. The best way to do it is with a scan tool, but I don't know have the money for one of those or to take it to the shop. I've had previous cars taken to the shop for this issue and they've never been quite the same.

Is there a way to short the wires on the relay to activate the pump? I've seen it done on older Hondas but didn't know how that was achieved on newer ones.
 
Old Oct 7, 2019 | 02:04 AM
  #2  
Action Jackson's Avatar
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From: Ontario, CANADA
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Which order did you bleed the brakes?

For North American models, it should be front left, front right, left rear then right rear to bleed.

I just changed my rotors and pads for the first time on my Fit. Been perfectly fine for a couple of weeks now.

I've changed brakes on all my other cars without issues.
 
Old Oct 7, 2019 | 05:36 AM
  #3  
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I'm curious as to why air is suspected to be in the ABS module.

Unless you took the tubing apart, there are 5 possible places air can enter into the ABS module. 4 of them are the bleeder valves with the 5th being through the reservoir.

From the bleeders, it requires keeping the reservoir cap closed, so that small air bubbles can travel up the tubing.

From the reservoir, it just means draining out the fluid until air goes all the way.

~~~~~

So, was the "bleed" method started with some poorly decided drain, instead of the proper method of constantly filling the reservoir before it ever empties out?

Oh yeah, if you get air into the ABS module due to draining the reservoir empty, that now requires the master cylinder to be completely removed from the car and bench bled as air will get trapped in there before air can get in the ABS module.
 
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