Python J2534 Interface

This is a interface to the J2534 API written in Python 3.10.

List Available Tools

import J2534

print(J2534.getDevices())

[['VSI-2534', 'C:\\WINDOWS\\SysWOW64\\dgVSI32.dll'], ['CarDAQ PLUS', 'C:\\WINDOWS\\system32\\CDPLS432.DLL'], 

['j2534-logger', 'C:\\Program Files (x86)\\Drew Technologies, Inc\\J2534\\j2534-logger\\ptshim32.dll'], 

['MongoosePro Chrysler', 'C:\\Program Files (x86)\\Drew Technologies, Inc\\J2534\\MongoosePro Chrysler\\monps432.dll'], 

['McS1', 'C:\\WINDOWS\\SYSTEM\\McS1v232.DLL'], ['J2534 for Kvaser Hardware', 'C:\\Program Files\\Kvaser\\Drivers\\32\\j2534api.dll'], 

['FulcrumShim', 'C:\\Program Files (x86)\\MEAT Inc\\FulcrumShim\\FulcrumShim.dll'], ]

Connect To J2534

import J2534

J2534.setDevice(index_of_tool)

device_id = J2534.pt_open()

channel_id = J2534.pt_connect(device_id, protocol, connect_flag, baud_rate)

ecu_filter = J2534.pt_start_ecu_filter(channel_id, protocol,  mask_id, rx_id, tx_id, tx_flag)

examples of parameters for ecu filter for ISO15765 connection = (channel_id, 6, 0xFFFFFFFF, 0x7E8, 0x7E0, 0X40)

Transmit and receive

set message structure for transmit and receive.

tx = J2534.PassThruMsgBuilder(protocol, tx_flag)

rx = J2534.PassThruMsgBuilder(protocol, tx_flag)

set data in buffer ready to tx.

tx.set_id_and_data(0x7e0, [0x1a, 0x87])

Transmit data.

J2534.pt_write_message(channel_id, message to send, # of messages to send, tx delay)

Read data.

J2534.pt_read_message(channel_id, message to read, how many messages to read, rx delay)

Print data.

print(rx.dump_output())