Elm327 or similar device

[pocket-rocket]

Hopefully your PCM isn't like my wife. If it is then it could have lost the keys...

[90v65speed]

Not exactly the samething but check out ebay auction #280455113434 Its a programer that I have never seen before and is pretty cheap. I wonder if it is worth a shit. I almost want to buy it just to see if it works at all. But I just hpt and don't really need it.
Brent

[Weatheralls Auto]

My wife has just lost her mind lol.

As for that programmer, I have seen them before, but it is KPW, we need
J1850 VPW protocol.

[90v65speed]

So it wouldn't work on our cars at all? I ordered an elm 327 scanner off ebay hopefully it will be here next week so I can pull some codes on the old ladys aurora.

[Weatheralls Auto]

No that programmer will not work on our cars, mainly European.

The Elm will get you your info though!

[pocket-rocket]

My wife has just lost her mind lol.

The worst part of mine loosing her primary keys is now she has the spare (our only one for now) and the keys have a keyfob built into them and aren't readily available like they are for my car...

[Weatheralls Auto]

Well, I have been successfully in writing the App to get Seed & Key!

Also (though many have told me the ELM can't get the Osid) I can retrieve the OSID and Vin of the PCM!!!!

Here is a SS
Let me know if anyone wants to try it out!!!

[robertisaar]

i have no idea what OSID is, but i am interested...

i can use my ATX power supply and give the PCM 12 volts and go through what i think may be the correct set of hex digits...

may be able to get the OBD1.5 tuning ball rolling...

[Weatheralls Auto]

I think OSID is Operating System ID? I know it is the PCM ID
example = the OSIDs that DHP supports http://spreadsheets.google.com/pub?k...n1_K034oyJoMUQ

My OSID is 12221682 which is if you look at that chart from a 2001 3.4 Impala, which is what I got the PCM from.

I am inputing some different commands here and getting some interesting results.

The Elm327 doesnt do highspeed so thats next on my list, but I am going through some commands that a found in the HPTuners archive

Make sure key is on Position, engine off.. and enough battery power.

Disable normal message transmission on all nodes
Send: 6C FE F1 28 00
Rec: 6C F1 <active node> 68 00

Read Seed - Data Link Security Access
Send: 6C 10 F1 27 01
Rec: 6C F1 10 67 01 <2 byte Seed>

Send Key - Data Link Security Access
Send: 6C 10 F1 27 02 <2 byte Key>
Rec: 6C F1 10 67 02 <Sucess status?>

Request High Speed Mode From All Nodes
Send: 6C FE F1 A0
Rec: 6C F1 <active nodes> E0 AA

Begin High Speed Mode
Send: 6C FE F1 A1
Rec: 6C F1 <active node> EF

Scan Tool/Test Device is Present
6C FE F1 3F

<DOWNLOAD BOOT LOADER>


Request Upload
Send: 6C 10 F1 35 01 <2 byte size> <3 byte start address>
Rec: 6D F1 10 75 01 54 (Request Response)
Rec: <Data block>
Send: 6C 10 F1 76 00 54 (Block Transfer Response OK)
Repeat

Return to Normal Mode
Send: 6C FE F1 20
Rec: 6C F1 <active nodes> 60

Without HighSpeed I know I can not flash, but hoping to be able to dump the bin from PCM with the Elm327

Maybe dimented24x7 can chime in here

[Weatheralls Auto]

Uploaded at

http://60degreev6.com/forum/local_links.php?catid=9

Need to clean up code and comment then I will upload source as well.

[robertisaar]

looks like roughly the same command scheme as the OBD1 setup...

[Weatheralls Auto]

I just remembered I have a 95 Jimmy 4.3 Pcm and connectors at the shop somewhere.
That would be OBD1.5 ?

[robertisaar]

from my diagrams, it looks like it. looks like the only thing that's removeable from the PCM is the knock filter, which is the same way the 93-95 3100 and 94-95 LT1 are...

[Weatheralls Auto]

I'll go through my pile of stuff in shop this week, see if I can find it and see if I can communicate with it.

[Weatheralls Auto]

Hehe, well had a free hour this aft, so added a seach of .xls file to get Veh info cross referenced by OSID, and change the look of the Form a bit.

What do you think?

(will upload latest version later this evening)