Failed brake servo/pedal simulator - a how-to DIY fix

[hondaero]

Willing to understand if the error / fault you saw was permanent on the cluster or intermittent.

Yesterday I've got "(PS) Brake System Problem / Brake Performance May be Reduced" however it went off when I've restarted the car.
Drove the car today and no more messages.

Thanks
~amo~

[obitoo]

Willing to understand if the error / fault you saw was permanent on the cluster or intermittent.

My problem appeared the same day as yours! First cold day here in the UK and all the errors lit up in the morning, so I left the car - tried it in the afternoon and it was ok (warmer?) but next morning same issue.
Taken it into the dealer who advised its a 'brake servo' although its not yet clear to me if this is the brake simulator issue or theres another servo eg on the parking brake (which initially wouldn't disengage - suspicious)

[hondaero]

just got back from Honda dealer who told me NO braking system problem has been logged !
only a parking system error !

i showed them what I've seen on my cluster but they said those facts haven't been logged.
a parking system error was reported as well (no picture of that one as I thought it is the least relevant) however much more:
- Brake System Problem. Brake performance might be reduced
- Low Speed Breaking Control Problem
- Brake System Problem. Honda Parking Pilot not available.

how is that possible ? no trace on the Honda system on those messages / incidents ?

indeed, I'm using the car for the last week without any error in the dash.

your advises are highly appreciated.

thanks
~amo~

[Ebenezer]

I've got a poorly Honda, taking into Stockport Swansway ASAP to get it looked at. Think it might be the same problem described in this thread. Wish me luck!

An update on this. It was the braking simulator that was faulty, and they replaced it free of charge "under warranty" (even though my car is now out of its 3yr warranty). A massive relief and still loving my little E

[MattHero]

I've got a poorly Honda, taking into Stockport Swansway ASAP to get it looked at. Think it might be the same problem described in this thread. Wish me luck!

An update on this. It was the braking simulator that was faulty, and they replaced it free of charge "under warranty" (even though my car is now out of its 3yr warranty). A massive relief and still loving my little E

Wow, well done on your dealer for doing that. That's a *big* bill they've saved you paying!

[Honda ZC7]

just got back from Honda dealer who told me NO braking system problem has been logged !
only a parking system error !

i showed them what I've seen on my cluster but they said those facts haven't been logged.
a parking system error was reported as well (no picture of that one as I thought it is the least relevant) however much more:
- Brake System Problem. Brake performance might be reduced
- Low Speed Breaking Control Problem
- Brake System Problem. Honda Parking Pilot not available.

how is that possible ? no trace on the Honda system on those messages / incidents ?

indeed, I'm using the car for the last week without any error in the dash.

your advises are highly appreciated.

thanks
~amo~

The 2023 model year is not affected on the brake simulator problem because they already installed the revised part at the factory in Saitama on these.

If you had a (temporary) problem with a parking sensor your low speed brake control will not work.

[hondaero]

thank you very much for your input !

after additional discussions with local dealer, i can confirm my issue is NOT related to brake pedal simulator but a glitch with the one of the parking sensor - front right center sensor (DTC = B2627-96). wondering if that was NOT related to local interferences in the area where it happened.

~amo~