ELM327

From Automotive Wiki from mr-fix
Revision as of 12:26, 16 May 2018 by Admin (talk | contribs) (Created page with "== Versions == * 1.0 * 1.0a * 1.1 * 1.2 * 1.2a * 1.3 * 1.3a * 1.4 * 1.4b * 2.0 * 2.1 * 2.2 == Supported protocols == * SAE J1850 PWM (41.6 kbaud) * SAE J1850 VPW (10.4 kbaud)...")
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Versions

  • 1.0
  • 1.0a
  • 1.1
  • 1.2
  • 1.2a
  • 1.3
  • 1.3a
  • 1.4
  • 1.4b
  • 2.0
  • 2.1
  • 2.2

Supported protocols

  • SAE J1850 PWM (41.6 kbaud)
  • SAE J1850 VPW (10.4 kbaud)
  • ISO 9141-2 (5 baud init, 10.4 kbaud)
  • ISO 14230-4 KWP (5 baud init, 10.4 kbaud)
  • ISO 14230-4 KWP (fast init, 10.4 kbaud)
  • ISO 15765-4 CAN (11 bit ID, 500 kbaud)
  • ISO 15765-4 CAN (29 bit ID, 500 kbaud)
  • ISO 15765-4 CAN (11 bit ID, 250 kbaud)
  • ISO 15765-4 CAN (29 bit ID, 250 kbaud)
  • SAE J1939 CAN (29 bit ID, 250* kbaud)
  • USER CAN (11* bit ID, 125 kbaud)
  • USER CAN (11* bit ID, 50 kbaud)

AT commands

Basic commands

PIDs

Chip identification and naming

Fakes

By checking the response to the AT commands you can determinate real version of the clone. [1]

Supported software

  1. https://www.elmelectronics.com/wp-content/uploads/2017/01/AT_Command_Table.pdf