ISO9141 questions

From: acetoel <Nik@...>
Date: Sun Dec 07 2003 - 16:17:32 CET

Hello

I'm interfasing a microcontroller to a VW GOL Diesel Pump ECU. I
need to know if I can ask the ECU only for ONE DATA Element, instead
of asking for FOUR DATA Elements (command 0x29).
Also, somebody told me that some VW ECUs stops communication when
you ask for RPM and the RPM is higher than 2500rpm. Is this true?
It will be nice if somebody can explain me what can I do with the
following commands...

0x04 Test
0x08 Read data channel
0x09 Acknowledge
0x10 Recode
0x11 Set Group
0x12 Data Group
0x21 Adapt Read
0x22 Adapt Test
0x28 Set Other
0x2a Adapt Save
0x2b Logon

Thanks very much
Ezequiel

 
Received on Sun Dec 07 07:17:34 2003

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