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CAN bus -OBD11

 
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Old 03-16-2008, 08:26 PM
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CAN bus -OBD11

anyone know if the 01 preludes have a CAN bus?

thanks
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Old 03-17-2008, 05:13 AM
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Forgive the ignorance, but what is a CAN bus?
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Old 03-17-2008, 01:04 PM
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x2 never heard of that
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Old 03-17-2008, 01:20 PM
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Old 03-17-2008, 01:24 PM
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x4....never heard of that one. please elaborate..or is someone having a laugh at our expense
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Old 03-17-2008, 01:37 PM
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googled it and got this

CAN Bus Description
The Controller Area Network (CAN) specification defines the Data Link Layer, ISO 11898 defines the Physical Layer.

The CAN bus [CANbus] is a Balanced (differential) 2-wire interface running over either a Shielded Twisted Pair (STP), Un-shielded Twisted Pair (UTP), or Ribbon cable. Each node uses a Male 9-pin D connector. The Bit Encoding used is: Non Return to Zero (NRZ) encoding (with bit-stuffing) for data communication on a differential two wire bus. The use of NRZ encoding ensures compact messages with a minimum number of transitions and high resilience to external disturbance.
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Old 03-17-2008, 01:50 PM
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ahh so thats what it is..
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Old 03-17-2008, 01:51 PM
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i thought he was asking for some canabus!?
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Old 03-17-2008, 02:15 PM
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i still dont understand can someone elaborate please
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Old 03-17-2008, 07:51 PM
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Quote:
Originally Posted by 1BadBB6 View Post
googled it and got this

CAN Bus Description
The Controller Area Network (CAN) specification defines the Data Link Layer, ISO 11898 defines the Physical Layer.

The CAN bus [CANbus] is a Balanced (differential) 2-wire interface running over either a Shielded Twisted Pair (STP), Un-shielded Twisted Pair (UTP), or Ribbon cable. Each node uses a Male 9-pin D connector. The Bit Encoding used is: Non Return to Zero (NRZ) encoding (with bit-stuffing) for data communication on a differential two wire bus. The use of NRZ encoding ensures compact messages with a minimum number of transitions and high resilience to external disturbance.

And that is exactly what on our cars? I have to ask.


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Old 03-17-2008, 08:09 PM
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is that just the way a certain type of wiring is set up????
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Old 03-17-2008, 08:41 PM
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sorry for the confusion, are cars are obd2 but not CAN they are ISO.
It just has to do with how the computer communicates in our cars. All new cars made these days have to have CAN but i believe its been around since the 80's.

I was wondering cause i wanted one of those dashhawk computers for the lude, ended up buying a dashguard 2 instead as it doesn't need CAN

This FAQ from the dashhawk website explains CAN pretty well:

What vehicles are supported by DashHawk?

Many Ford, Chrysler, and GM vehicles started implementing Controller Area Network (CAN) communications in 2004. As new vehicles are introduced, most are CAN compliant. As a result, you have some vehicles in 2004, many more in 2005-2006, most 2007s, and finally by 2008 ALL vehicles sold in the US must be CAN compliant. A matrix for known supported vehicles is shown in the supported vehicles page.

My vehicle is not on the supported list. Is it CAN compliant?

If you vehicle is not listed in the supported vehicles page, all is not lost! There are many vehicles being added/tested every day and it is hard to capture them all and keep them up to date, so a good way to see if your car has a CAN bus is the following:

Locate the OBDII connector. It is under the dash on the driver’s side of the vehicle, often either under the steering wheel or tucked up next to the driver’s side kick panel.
Look carefully at the plug with a flash light or other bright light source. If pins 6 and 14 have metal pins in them (i.e. are “populated”) then the vehicle has a CAN bus and DashHawk will most likely work with this vehicle.
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Old 03-17-2008, 08:44 PM
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i guess i was goin in the right direction lol
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Old 03-17-2008, 08:45 PM
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heres the website for the Scanguage if anyones interested.
www.scanguage.com
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Old 03-17-2008, 09:12 PM
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missin' the lude.

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you mean this?? LOL!!!
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Old 03-18-2008, 07:27 PM
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heres the website for the Scanguage if anyones interested.
www.scanguage.com

I got one. Just need to read the book and set it up once I fire up the car here in a few weeks.


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