Diacom Cable (to GMY2K) Check your DIC

[Programmer]

Ok--so it's got a 4 digit date. It has a 2 digit date...it just doesn't
matter.....What possible function could be linked to a date ??? Does it honk
out "Auld Lang Syne" (probably spelled that wrong) at midnight Dec 31 ??
I've never run across any check charts, or trouble shooting systems on ANY
vehicles that says -- "hey mr. techy---did you check that the date is set
correctly? " I don't know of any written code that relates to a date issue
with a PCM or BCM system...The only links that are remotely close to
something turning on a warning light in your vehicle are preset odometer
parameters for scheduled maintenance---nothing date related. My vented .032
cents Canadian. (2 cents U.S.) Symbiotic relationship ends at the radio
clock.

LW
-----Original Message-----
From: Jeff M <tystorm at email.msn.com>
To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
Date: December 1, 1999 8:45 AM
Subject: Re: Diacom Cable (to GMY2K) Check your DIC


>Better check your DIC though, it is wired with the rest of your TGP/ECM and
>will show "00" pretty soon, won't hurt anything but you do have a date and
>it is one symbiotic part of your system.  My Wife's 1992 Trofeo has a very
>elaborate ECM/BCM/SIR/IPC system that is absolutely astonishing being that
>is  able to use the existing in-car display to show all data for many
areas;
>blower speed/volts in BCM (and 39 more), turn on and off individual
>injectors in ECM as well as snap-shot and user override/activation (allowed
>me once to find an elusive clicking noise by cycling the purge canister
>solenoid and hopping under the hood to confirm the culprit and location)
and
>31 more.  And IPC and SIR troubleshooting but not as exciting (AND all
>without a Diacom!!!).....and this system has a clock with a 4 digit year
>display that may not care if there is any different time zone or such but
>the clock does tic, and time will tell less I move it ahead my self ;-).
>
>Jeff M
>
>
>> Mark Romans wrote:
>> >
>> > GM's "Official" response is that all prior to 90 don't know what year
it
>is
>> > anyway and all 90 and later are Y2K compliant.  (so I have been told)
>>
>> Eh?  You're kidding, right?  What ECM/PCM knows the year?  I didn't know
>> ANY of them were equipped with an RTC.  If so, how would you reset the
>> clock in the ECM if say, the battery is disconnected?  How would the ECM
>> know your time zone, or compensate for Daylight time and Standard time?
>> What if you travel out of state, or live in a state that doesn't change
>> back to Standard time?  How would it handle leap years? :)
>> Heheh, I think all the panic about Y2K is really funny, there really ARE
>> people that think their car won't start come Y2K.  My girlfriend brought
>> home from her work a Y2K flyer published by the Red Cross that actually
>> said the embedded systems in some cars may not be Y2K compliant!  HAH!
>>
>> --
>> Shawn Lin
>> __________________________________________
>> NetZero - Defenders of the Free World
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