Data Communications Link (DCL) - CART/UART

[wwhite]

I have 100% decompiled the DCL - CART/UART protocol data stream for transmitting and receiving.
Using plain Java, a MAX485 chip, can now communicate with the EEC's that have the 81C62 or 81C65 CART chip, on the D+ and D- test connector.

The C3P2 lightings have mode 0x05 which is for 'Alternate Calibration'. Has any one had success with that?

I am really interested in the following modes:
- 0x43: DCL_DM_ProgramDataDownload
- 0x45: DCL_DM_ProgramExecution
- 0x46: DCL_DM_A-D_SensorValueSubstitution

Has any one had success with this?

From what I understand, is that using A-D_SensorValueSubstitution, this is kept in KAM, and should be able to change any PID value.

I'll be posting my source code, and schematic of the MAX485 once I have more testing complete.

[m0l0]

Very Interesting development, always was interested on those pins and what protocol the use, if there was anything we could use , but never found anything on it.

"I'll be posting my source code, and schematic of the MAX485 once I have more testing complete."

Please do! i would like to try this on the ecu on the bench i have

[jsa]

The Czech program ForDiag works for DCL if you want a commercial product.