Software On ELM Street - OBD2 Software Development

[Jayme]

maybe it only runs the fault checks when the engine is running?

[Holden202T]

surely it would have to have something to say theres open circuits or similar!

[Tazzi]

maybe it only runs the fault checks when the engine is running?

Ignition is on according to everything. Seems the traffic actually slows down once I connected the ECU. Maybe all that traffic was the TCM asking for the ECU to respond?

Dunno.. I'll have to brute force the codes with the AVT anyway. Would have been nice to do it on the bench setup.

Got the VE to test on for auto anyways. Well.. Id hope it has no transmission faults.

surely it would have to have something to say theres open circuits or similar!

Exactly my thoughts... but nooooo, VZ V6 TCM thinks its all hunky dory.. with nothing attached.. open circuits everywhere.. no other data input... lol.
It even thinks its in 2nd gear


Soo for our first course of tranmission logging data we have:
7E2 04 2C FE 28 10 55 55 55
7EA 02 6C FE AA AA AA AA AA
7E2 10 0E 2C FD 00 0C 00 0D
7EA 30 00 0A (0A.. think mean go slower)
7E2 21 19 9A 19 54 19 A1 19
7E2 22 4F 55 55 55 55 55 55
7EA 02 6C FD AA AA AA AA AA
7E2 10 0A 2C FC 19 41 19 42
7E2 21 19 40 00 05 55 55 55
7EA 02 6C FC AA AA AA AA AA
7E2 10 0A 2C FB 19 70 19 91
7E2 21 1A 2D 19 72 55 55 55
7EA 02 6C FB AA AA AA AA AA
7E2 10 0E 2C FA 19 9E 19 9F
7E2 21 19 92 19 93 19 94 19
7E2 22 95 55 55 55 55 55 55
7EA 02 6C FA AA AA AA AA AA
7E2 10 10 2C F8 11 41 19 50
7E2 21 28 06 28 07 28 0F 19
7E2 22 51 19 76 55 55 55 55
7EA 02 6C F8 AA AA AA AA AA
7E2 04 2C F7 1A 01 55 55 55
7EA 02 6C F7 AA AA AA AA AA

7E2 10 09 AA 03 FE FD FC FB
7E2 21 FA F8 F7 55 55 55 55

5EA FE 1E 00 00 00 00 00 00
5EA FD 00 00 00 03 20 00 00
5EA FC 00 00 00 00 00 78 00
5EA FB 00 00 00 FD 97 0C 00
5EA FA 00 00 00 00 00 00 00
5EA F8 70 91 11 91 0B 80 00
5EA F7 00 00 00 00 00 00 00

[Tazzi]

Whats interesting in the above data.. is it does this: 7E2 10 09 AA 03 FE FD FC FB

And from what I understand, 03 actually means "log at medium speed". Whereas the Engine data does an 04 there for "smash me with your data".
Curious to why they would choose a slower speed... maybe the tcm isnt as quick as the engine ecu. Probably best to stick with the 'recommended'.

[Charlescrown]

I have a problem with that data and I know it's at my end because I saw it on another forum. There are 6 skype phone numbers in the data. Does anyone know what I need to set to stop it displaying like this?

[vlad01]

turn off skype click to call plugin on the browser?

[Charlescrown]

Thank you it worked.

[Tazzi]

So lets break this down:

7E2 04 2C FE 28 10 55 55 55
DPID FE has PIDs:
2810

7E2 10 0E 2C FD 00 0C 00 0D
7EA 30 00 0A (0A.. think mean go slower)
7E2 21 19 9A 19 54 19 A1 19
7E2 22 4F 55 55 55 55 55 55
DPID FD has PIDs:
000C
000D
199A
1954
19A1
194F

7E2 10 0A 2C FC 19 41 19 42
7E2 21 19 40 00 05 55 55 55
DPID FC has PIDs:
1941
1942
1940
0005

7E2 10 0A 2C FB 19 70 19 91
7E2 21 1A 2D 19 72 55 55 55
DPID FB has PIDs
1970
1991
1A2D
1972

7E2 10 0E 2C FA 19 9E 19 9F
7E2 21 19 92 19 93 19 94 19
7E2 22 95 55 55 55 55 55 55
DPID FA has PIDs:
199E
199F
1992
1993
1994
1995

7E2 10 10 2C F8 11 41 19 50
7E2 21 28 06 28 07 28 0F 19
7E2 22 51 19 76 55 55 55 55
DPID F8 has PIDs:
1141
1950
2806
2807
280F
1951
1976

7E2 04 2C F7 1A 01 55 55 55
DPID F7 has PIDs:
1A01

7E2 10 09 AA 03 FE FD FC FB
7E2 21 FA F8 F7 55 55 55 55
Requests to start spam of FE,FD,FC,FB,FA,F8,F7 dpids.

5EA FE 1E 00 00 00 00 00 00
5EA FD 00 00 00 03 20 00 00
5EA FC 00 00 00 00 00 78 00
5EA FB 00 00 00 FD 97 0C 00
5EA FA 00 00 00 00 00 00 00
5EA F8 70 91 11 91 0B 80 00
5EA F7 00 00 00 00 00 00 00

And PID's above are sent out in order of how data was requested.

A good 29 different parameters there. This should be interesting!
Just got to get the AVT routine pumped out and a reverse engineering we go!

[Tazzi]

Managed to sort out all the above PIDs. Some good Trans stuff there

Iv got trans ADAP left to do, and that will be the VZ V6 TCM sorted for engine data.

Im still not sure on what to do about automatic LS1 ecus.. Ill have to work out how the tech2 identifies them.. pretty sure its a 1A 9A message or something like that.

[Tazzi]

No more warnings of freeze data on initial starting, has been completely removed from startup reading.

Engine reading works great. Graphing is accurate with so much data coming in.

EngineReadingNew.PNG (26.9 KiB) Viewed 4962 times