Re: Alfa Romeo & KWP2000 problem

Hi Radix,

Just tried your suggestions:

Tried fast and slow init resetting to 10400 8n1.

--- In opendiag@yahoogroups.com, radix <juglandis@g...> wrote:
> PID 0C RPM is OK SAE J1979
> try an other test after startCom
(check too 81 11 F1 81 <cs>)
OK

Also tried
C1 33 F1 81 cs (startCommunication)
Rx:NO RESPONSE

>
>readSnapshot in short form, without address info
>02 21 01 24 (cs is incl.)
Rx:04 61 01 00 00 66

> my ECU response in byte 35Hbyte, 36Lbyte RPM (Bosch 1.5.5 Opel)
> try Mode ReadDataByLocalIDService $21
>
> ReadFreezeFrame 03 12 FF 00 <cs> multiple responds (Opel)
Rx:03 7F 12 11 A5 (serviceNotSupported)

> or ReadPIDsupport 82 10 F1 01 00 <cs>
Rx:03 7F 12 11 A5 (serviceNotSupported)

> or 82 10 F1 01 20 <cs>
Rx:03 7F 12 11 A5 (serviceNotSupported)

> try functional addressing C2 33 F1 01 0C F3 (cs is incl.) CARB-
mode 01 RPM it must work
Rx:NO RESPONSE

> ReadPIDsupport C2 33 F1 01 00 <cs>
Rx:NO RESPONSE

>
> please let me know your results.
>
> radix
>

I tried sending the following, and it seems to be a short message
format with NO format or address bytes, just a length byte as a
header.

Tx:02 21 03 26
Rx:05 61 03 01 2F 3A D3

Tx:02 21 05 28
Rx:04 61 05 00 00 6A

Tx:02 21 0A 2D
Rx:04 61 0A 00 B6 25

Tx:02 21 0B 2E
Rx:04 61 0B 00 01 71

Tx:02 21 0C 2F
Rx:05 61 0C 00 00 00 72

Tx:02 21 (00->02,O6->09,0D->10) cs
Rx:03 7F 21 12 B5 (subFunctionNotSupported - invalidFormat)

The first byte is a length byte, the last the checksum. I think this
is just another way of reading readDataByLocalIdentifier.

Unless someone has a Local ID list it will be guess work as to what
the values mean (Sander - I will send you an email about your
message).

Surely there must be a way of using 0x0C, 0x0D etc in some format to
get the RPM, vehicle speed and so on unless I'm doing somthing
stupid ,which is very possible :-)=)

 
Received on Mon Nov 17 13:54:01 2003