SZ Viewer: read DTC for Suzuki

Anton Malykh

About this app

Developed for Suzuki vehicles SZ Viewer A1 uses specific protocols (via K-Line and CAN bus) along with standard OBDII ones. This application can read and reset DTC codes (including extended and historical codes) of many Suzuki control modules.

Japanese domestic market (JDM) Suzuki cars are also supported even if they do not support OBDII protocols.

An ELM327 adapter (Bluetooth or Wi-Fi) version 1.3 or later is required. Fake (so called v2.1 and some v1.5) ELM327 adapters are not suitable for use as they do not support the required ELM327 commands.

Older (pre-2000 model year) SDL protocol (5V levels, pin #9 of OBDII connector) is not supported because of physical incompatibility with ELM327.

This application allows you to view and reset DTC errors for various control modules: powertrain, engine, AT/CVT, ABS/ESP, SRS, AC/HVAC, BCM, PS, EMCD/4WD/AHL, TPMS, etc. However, not all modules may be present on a tested vehicle.

An HVAC module may display B1504 or B150A DTC due to insufficient illumination of a sunload sensor during a diagnostic procedure. This is not a symptom of a sunload sensor malfunction.

Ratings and reviews

Excellent app works like a charm!I'm using the app with a Konwei elm327 based adaptor and I get all readings!I wish that all options on the pc based app was also on android app.. Nevertheless it's a GREAT app,hats off to the developer!!

Tried lots of OBD reader for my Baleno Next-G (Aerio Sedan or Liana Sedan), and this is the only app that works). Using a mini ELM v2.1 connected using bluetooth. Even though connecting is sometimes need a few reignition, after connected the data is shown in real time. It would be nice if in the future you can save log files and shown it graphically. Thank you developers.

This app is really amazing. I tried all other OBD2 apps trying to find error codes for my Suzuki Alto 2009, but none of them worked for me. My vehicle has issue with ABS/ESP. This SZ Viewer A1 was able to determine the error and reset some other errors which makes me happy .. It would be wonderful if it can save log data. Hopefully in the future update. Thanks for this amazing app with such amazing work. Definitely 5 stars 👍

What's new

A1-2024-08-26

D13A Engine (AZG413D) support.


A1-2024-04-23

"Clear DTC" action on the DTC tab.


A1-2024-04-04

Target API level 34 (Android 14).


A1-2023-11-01

Changing units of measurement.


A1-2023-10-18

Changed DTC tab formatting.

Workaround for the permission bug of Chinese devices running Android 12+.


A1-2023-10-01

A new tab with temperatures.