I knew this before I bought the car that it has an electrical fault that kills the DSC, ABS and Speedo.... Read on this forums using many searches that it must be one of the ABS sensors is dead.
That should be the correct thing? I believe that the car is actually from the USA not Europe.. Does that mean I can get just any old OBD2 thing or should I still get the BMW one?
PS I plan on doing most things on the car myself so this will be the first post of many!
Also I read that particular ABS sensors report different things to the ECU so is it for example, the rear right sensor that has failed as that is the one that controls the Speedo?
I knew this before I bought the car that it has an electrical fault that kills the DSC, ABS and Speedo.... Read on this forums using many searches that it must be one of the ABS sensors is dead.
That should be the correct thing? I believe that the car is actually from the USA not Europe.. Does that mean I can get just any old OBD2 thing or should I still get the BMW one?
PS I plan on doing most things on the car myself so this will be the first post of many!
Also I read that particular ABS sensors report different things to the ECU so is it for example, the rear right sensor that has failed as that is the one that controls the Speedo?
Cheers for the help!
Tom.
I think they are technically called Pulse Generators. I'd suspect you'll probably need a GT-1 to diagnose as i don't think an OBD2 or a Peake will give you a specific enough code. In any case, Peake gives a more specific version of OBD, so try a Peake first, and if that doesn't work you can take the car to a dealer for a GT1 reading.
So if these are using a pulse... Is it possible to be able read this with an Oscilloscope? Are these sensors reasonably easily accessible? Can anyone point me to a diagram....?
So if these are using a pulse... Is it possible to be able read this with an Oscilloscope? Are these sensors reasonably easily accessible? Can anyone point me to a diagram....?
I can safely say I have no idea what type of pulse is generated - could be an electrical pulse or could be an Ibus communication. I would imagine it has to be electrical and therefore should be visible with an oscilloscope. This still leaves you with the issue of not knowing what to expect.
From using the search quite a lot I found that many people say it is the rear left that is linked to the speedo... Maybe a visual inspection will turn up something but I doubt it......I have got the Carsoft program installed on a laptop, so all I need is the OBD2 -> USB connector to get much more detailed information..? Or will it just be the same codes as the Peake reader and therefor not worth it?
I really appreciate all the help everyone, thank you.
From using the search quite a lot I found that many people say it is the rear left that is linked to the speedo... Maybe a visual inspection will turn up something but I doubt it......I have got the Carsoft program installed on a laptop, so all I need is the OBD2 -> USB connector to get much more detailed information..? Or will it just be the same codes as the Peake reader and therefor not worth it?
I really appreciate all the help everyone, thank you.
OBD is a generic set of codes that apply to all brands of vehicles. Peake readers provide the BMW specific codes. Hooking up and OBD2 reader will give you LESS information than a Peake.
I can safely say I have no idea what type of pulse is generated - could be an electrical pulse or could be an Ibus communication. I would imagine it has to be electrical and therefore should be visible with an oscilloscope. This still leaves you with the issue of not knowing what to expect.
d-
they generate ac voltage. put a meter on it and spin the wheel and see if anything happens.
Sometimes the wheel sensors get dirty or the sensor cables get worn out. It's a high failure item. I recommend doing a visual inspection of them. Just one screw each to remove.
OBD is a generic set of codes that apply to all brands of vehicles. Peake readers provide the BMW specific codes. Hooking up and OBD2 reader will give you LESS information than a Peake.
Doug
Actually, P0*** are generic codes through OBDII connection, P1*** and P2*** are manufacturer specific. I don't use a peake reader, but instead use Modis with German vehicles. ABS, Transmission, Body and Air Bag modules have different entrances to their faults and can't not always be read through an OBD system. Newer vehicle will have CAN communication and can't be read with an OBDII scanner.
Linear Mode
