Brakes/Limp mode

[Donjazz]

Will the Supra go into limp mode if I continue to dive it with the brake warning on? I’m headed back from vacation and have a long drive and the “continued driving possible for a short distance” warning is on. My rear brakes triggered are low and triggered it.

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[jtsang25]

No dealer you can take it to close by? I wouldn't gamble with brakes.

 

[Donjazz]

There’s one in Knoxville which is near where we are at. I’m gonna call them to see if they have the pads in stock. I can put them on bc we are staying at a friends who has the tools etc I’m think it would trigger the ABS sensor and maybe go limp but I’m really unsure.

 

[Rocksandblues]

If they wear down to the actual wear sensor then yes limp mode

Sounds like the warning you get when you hit the sensor. So while it is possible to drive, power limited.

 

[Donjazz]

Got it, thx!

 

[razorlab]

If they wear down to the actual wear sensor then yes limp mode

Sounds like the warning you get when you hit the sensor. So while it is possible to drive, power limited.

I’ve done two track days with the wear sensor ripped off and with that warning. No limp mode.

At least on my 2020, it just gives that warning msg.

 

[Donjazz]

So when I had a drive train malfunction power reduced etc using XHP it would still get up to 70 mph - 75 mph but I didn’t have much power. Is that limp mode?

 

[Rocksandblues]

I’ve done two track days with the wear sensor ripped off and with that warning. No limp mode.

At least on my 2020, it just gives that warning msg.

hmmmm. The one time (first season) I hit a sensor it limited power in a big way. Day was done. It was front sensor. But i am at a loss if it is a 2021 vs 2020 thing?? front vs rear senors throw different warnings? puzzled.

I snipped both sensors and wired together since brakes are something i look at every track day anyway religiously.

 

[razorlab]

hmmmm. The one time (first season) I hit a sensor it limited power in a big way. Day was done. It was front sensor. But i am at a loss if it is a 2021 vs 2020 thing?? front vs rear senors throw different warnings? puzzled.

I snipped both sensors and wired together since brakes are something i look at every track day anyway religiously.

Are you confusing the brake wear sensor with the adjustable strut wire?

 

[Rocksandblues]

no sir. was 100% the pad sensor that got me

 

[razorlab]

no sir. was 100% the pad sensor that got me

Interesting. Yea must be a 21+ difference.

 

[Donjazz]

Will I need to do anything to the electric
e brake so it releases the shoes? Like go into diagnostic mode etc

 

[razorlab]

Will I need to do anything to the electric
e brake so it releases the shoes? Like go into diagnostic mode etc

No shoes for our e-brake, it uses the rotor pads. You have to make sure the e-brake isn't on and use something like Bimmerlink to unwind the rear e-brake motor.

 

[Rocksandblues]

Before i hot wired my sensors and i tripped the front brake sensor on my 2021. I replaced the brake sensor that one and only time i DID have to go into the diagnostic menu and reset that sensor. It will NOT reset unless it is a new sensor or hot wired.

 

[Silverbmpra]

Did you drive the car for a long time after you got a brake wear warning? I ripped mine while installing brakes. I taped it and it just started a mileage countdown but no loss in power. I just replaced it and reset the brake warning. I am a 2021

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