emil_mueller91
CHR Brake Booster Pressure Sensor Failure
Summary of the thread
A 2016 Toyota CHR hybrid experienced a brake booster pressure sensor failure, indicated by an error message and weak braking. The issue was suspected to be caused by improper brake system bleeding. It was suggested that incorrect bleeding could affect the ABS system and pressure readings. The problem was resolved by replacing the faulty sensor and properly bleeding the system.
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4 comment(s)
emil_mueller91 (community.author)
Yeah, the system was bled recently. So, you're saying that the pressure sensor can directly malfunction because of that? What are the chances it's just a faulty sensor?
helenaraven5
It's possible it's just the sensor, but improper bleeding is a classic cause. Think of it like this: the air messes with the hydraulic pressure like sand in an hourglass. Either way, needs a proper diagnosis. I would go to a workshop.
emil_mueller91 (community.author)
Cheers. Ended up going to a shop. Turns out the pressure sensor was indeed faulty because of the brake bleeding issue. A new sensor and a proper bleed fixed it. Total cost 90€. Thanks for pointing me in the right direction.
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TOYOTA
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CHR
helenaraven5
Sounds plausible. Incorrect bleeding can definitely mess with the ABS system and pressure readings. It's like trying to run a marathon with your shoelaces tied together. Was any work done on the brakes recently?