ABS ALDL comms

[Len Sabatine]

     Even with J1850 Implimentation , UART is still being used for inter 
module comms.
     [ or carried over ]  , in spite of GM OBD2  VPW protocol. Car makers 
have their
     own flavors of  SAE J1850 [ Standards , within standards].


>On newer vehicles (At least 94 and newer) there are multiple computers...
>ABS, Air Bag, ECM/PCM, HVAC, some GM radio systems communicate over ALDL
>also, BCM...
>With the new OBD_II, there were some ALDL alongside the OBD comms... I
>believe all systems now are all running the OBD_II SAE J1850 protocols
>
>
>==================================================
>David Cooley N5XMT Internet: N5XMT at triad.rr.com
>I am Pentium of Borg... Division is Futile!
>==================================================
>
>
> > -----Original Message-----
> > From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf
> > Of ae2598 at wayne.edu
> > Sent: Friday, November 17, 2000 8:47 AM
> > To: gmecm at diy-efi.org
> > Subject: Re: ABS ALDL comms
> >
> >
> > How many systems, other than the ECM, communicate on the ALDL?   Do ABS
> > controllers have any comms capability?
> >
> >
>
>----------------------------------------------------------------------------
>To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
>in the body of a message (not the subject) to majordomo at lists.diy-efi.org

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org