SZ Viewer (for Android, Windows, Linux, macOS)

Описание, версии, история: http://malykh.blogspot.com/2014/02/sz-viewer.html (in Russian)

SZ Viewer A (for Android) - A1-2025-01-07
SZ Viewer W (for Windows) - W1-2025-01-08
SZ Viewer L (for Linux) - L1-2025-01-08
SZ Viewer M (for macOS) - M1-2023-12-19
Suzuki protocols
Module types

SZ Viewer A (for Android 4.0 or later)

SZ Viewer A1 in Google Play: https://play.google.com/store/apps/details?id=com.malykh.szviewer.android

Supported adapters:

• ELM327 (v1.3 or later) via Bluetooth (SPP) or Wi-Fi (access point mode only).

History: A1-2026-10-09, A1-2025-01-07 (151), A1-2025-01-07, A1-2024-08-26, A1-2024-04-23, A1-2024-04-04, A1-2023-11-01, A1-2023-10-18, A1-2023-10-01, A1-2023-07-08, A1-2022-10-27, A1-2022-10-15, A1-2022-09-21, A1-2022-09-01, A1-2022-06-02, A1-2022-03-31, A1-2022-03-24, A1-2021-09-22, A1-2021-05-28, A1-2021-02-08, A1-2021-01-20, A1-2020-12-21, A1-2020-10-25, A1-2020-05-07, A1-2020-02-29, A1-2020-01-22, A1-2020-01-05, A1-2019-12-21, A1-2019-11-26, A1-2019-10-11, A1-2019-07-26, A1-2019-06-05, A1-2019-05-11, A1-2019-03-25, A1-2019-02-26, A1-2019-01-27, A1-2019-01-03, A1-2018-12-02, A1-2018-09-21, A1-2017-10-28, A1-2017-05-29, A1-2017-04-16, A1-2016-11-11, A1-2016-08-04, A1-2016-06-13, A1-2016-05-17, A1-2016-02-22, A1-2016-01-30, A1-2016-01-10, A1-2015-12-19, A1-2015-12-13, A1-2014-05-12, A1-2014-03-24

SZ Viewer W (for Windows XP or later)

Download W1-2026-10-13 version (x86): sz-viewer-w1-2026-10-13.zip (43.1MB, portable ZIP-archive, SHA256: ad0a03a94ee13a395dfaba3f18158b55216bcd5eaba88015505b8698d70a4ce8)

Supported adapters:

• ELM327 (v1.3 or later) via Bluetooth (SPP), Wi-Fi (192.168.0.10:35000), USB.
• USB K-Line FTDI adapter [CAN/CAN-UDS modules are inaccessible].
• USB K-Line non-FTDI adapter with 10400 baud speed [CAN/CAN-UDS modules are inaccessible].
• VAG K+CAN "Commander" adapter.
• J2534 (PassThru) adapter (32-bit driver).

How to read raw values

Screenshot:

SZ Viewer L (for Linux, amd64/x86_64, glibc v2.12 or later)

Download L1-2026-10-13 version (amd64/x86_64): sz-viewer-l1-2026-10-13-amd64.tar.gz (36.9MB, SHA256: 20a4e314073b73d6bea810aff2da2fe9deae1d30b0a7eb8a1610af0ef9fbafe9)

Supported adapters:

• ELM327 (v1.3 or later) via Bluetooth (SPP), Wi-Fi (192.168.0.10:35000), USB.

Some preparations:

• Add the user to a dialout (or equivalent) group to access serial/USB devices.
• A bluetooth device should be bound to /dev/rfcommX

How to read raw values

Screeshot:

SZ Viewer M (for macOS 10.14 supporting amd64/x86_64 or later)

Support for macOS was completely removed from the project in 2024

Supported adapters:

• ELM327 (v1.3 or later) via Bluetooth (SPP), Wi-Fi (192.168.0.10:35000), USB.

Some preparations:

• To first run use Right Click ⇒ "Open" rather than double clicking on the app icon itself (limitation due to a “quarantine” attribute for downloaded archives).

How to read raw values

Screeshot:

Suzuki protocols

Aged Suzuki cars use a 12-pin ALDL-like diagnostic connector. This connector type is not supported by SZ Viewer.

Newer Suzuki cars use a standard (J1962) 16-pin OBDII connector. But applied protocols depend on the connected pins.




Pins #4, #5, #16 should be connected (their wires can be used as reference). To determine protocols check out pins #9, #7, #6 and #14:

• Pin #9: SDL protocol. This is an old-style 5V level protocol related with GM ALDL. Also modern Suzuki vehicles may use this pin to link with an immobilizer. These protocols are not supported by SZ Viewer.
• Pin #7: Suzuki K-Line (fast or 5Baud init) protocol. This protocol is supported by SZ Viewer. But sometimes K-Line is used for non-Suzuki protocols (early ISO 9141, for example) and pin #9 is present. In this case SZ Viewer is unable to connect to all or some modules.
• Pins #6 and #14: Suzuki CAN/CAN-UDS protocols. These protocols are supported by SZ Viewer (excepting some of the newest modules).

There is a little support of non-Suzuki engines (Diesels, or Gasoline GM 3.2 V6, for example) by SZ Viewer now because their modules use non-Suzuki (Renault, Peugeot, GM, FIAT, etc) protocols.

Experimental feature: plain OBD II protocols are supported by SZ Viewer for K-Line or CAN bus.

Module types

Module types supported by SZ Viewer (at least DTC reading):

© Anton Malykh, 2014-2026.