Brake Pressure Sensor

[fatjon]

I have an application which needs to monitor brake pressure so I found a couple of brake pressure sensors (Audi A2). Anyone know what pin is what on them. I assume it's 5v, GND and output but can't find any documentation about which is which.

Sorry, I know it's not really engine technical, but it is technical!

[stevieturbo]

Test and find out, chances of doing any damage through wrong connection is slim.

[anonymous-user]

iirc, it's

1) Signal
2) GND
5) 5v

but i could be wrong, see to remember they are pretty robust and resist being incorrectly connected. If in doubt start with a 470ohm resistor on the 5v supply wire!

[fatjon]

thanks chaps. I reckon volt drop over a 470R should be minimal at a couple of mA so will try that to be sure I dont fry it.

[tapkaJohnD]

Autodata would give you all the info you would need.
But it's an online service that garage workshops subscribe to, and not cheap!
If the above isn't enough, perhaps a local Audi dealer will look up the brake sensors for you on their PC.
Or just stroll into the workshop and ask!
John