Brake Bleeding - How to Cycle ABS Valves? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Jamestl · 11-11-2018, 02:19 PM

Any anyone here figured out to cycle the ABS valves on our cars without a diagnostic tool? I know I can get a harder brake pedal feel but after boiling some fluids at the last track day and activating ABS a couple of times, I feel like air may have gotten into the ABS modules that I can't seem to get rid off after two bleeds (where no air came out on the last one). Brakes still work fine but not as firm as usual after a flush.

I've looked around and it seems like older Subaru models can self cycle per this thread: https://www.iwsti.com/forums/gd-gene...-problems.html

I'm wondering if such a self diagnostic mode exist for our cars. Otherwise I need to buy an OBD tool that will do that for me, and who wants to spend extra money on a tool when you can do it for free! Thanks.

Mr.ac · 11-11-2018, 08:03 PM

Sounds like brake pads are toast. Not abs.

Jamestl · 11-11-2018, 08:35 PM

Quote:

Originally Posted by Mr.ac

Sounds like brake pads are toast. Not abs.

Yeah that’s not the issue. On the second flush I went to winter pads. Same issue.

Mr.ac · 11-11-2018, 10:57 PM

That's an odd ball. Well, might want to spend some money on obd tool. Might want see what on sale on Black Friday.

cueball89 · 11-11-2018, 11:01 PM

Are there any dirt or gravel roads near you? Engage the abs a few times when it's safe to do so.

11-11-2018, 02:19 PM	#1
Jamestl Senior Member Join Date: Jun 2017 Drives: None Location: Chicago Posts: 267 Thanks: 26 Thanked 62 Times in 49 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Brake Bleeding - How to Cycle ABS Valves? Any anyone here figured out to cycle the ABS valves on our cars without a diagnostic tool? I know I can get a harder brake pedal feel but after boiling some fluids at the last track day and activating ABS a couple of times, I feel like air may have gotten into the ABS modules that I can't seem to get rid off after two bleeds (where no air came out on the last one). Brakes still work fine but not as firm as usual after a flush. I've looked around and it seems like older Subaru models can self cycle per this thread: https://www.iwsti.com/forums/gd-gene...-problems.html I'm wondering if such a self diagnostic mode exist for our cars. Otherwise I need to buy an OBD tool that will do that for me, and who wants to spend extra money on a tool when you can do it for free! Thanks.

11-11-2018, 08:03 PM	#2
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,369 Thanks: 709 Thanked 1,558 Times in 930 Posts Mentioned: 30 Post(s) Tagged: 0 Thread(s)	Sounds like brake pads are toast. Not abs. __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

11-11-2018, 10:57 PM	#4
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,369 Thanks: 709 Thanked 1,558 Times in 930 Posts Mentioned: 30 Post(s) Tagged: 0 Thread(s)	That's an odd ball. Well, might want to spend some money on obd tool. Might want see what on sale on Black Friday. __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

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11-11-2018, 11:01 PM	#5
cueball89 Senior Member Join Date: Apr 2016 Drives: 23 BRZ 15 Impreza Location: NY Posts: 160 Thanks: 58 Thanked 76 Times in 50 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Are there any dirt or gravel roads near you? Engage the abs a few times when it's safe to do so.

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