SZ Viewer: read DTC for Suzuki

SZ Viewer A1: A Suzuki Diagnostic Tool Utilizing ELM327

SZ Viewer A1 is a diagnostic application designed for Suzuki vehicles. It leverages specific protocols (K-Line and CAN bus) in addition to standard OBDII protocols to read and clear Diagnostic Trouble Codes (DTCs) from numerous Suzuki control modules. This includes extended and historical codes.

Importantly, SZ Viewer A1 supports Japanese Domestic Market (JDM) Suzuki vehicles, even those lacking standard OBDII compliance.

Requirements:

• An ELM327 adapter (Bluetooth or Wi-Fi) version 1.3 or higher is necessary. Note that counterfeit ELM327 adapters (often labeled as v2.1 or certain v1.5 versions) are incompatible due to missing essential commands.
• Older vehicles (pre-2000) using the SDL protocol (5V levels, OBDII connector pin #9) are not supported because of hardware limitations with ELM327.

Supported Modules:

SZ Viewer A1 provides DTC viewing and resetting capabilities for various control modules, including but not limited to: powertrain, engine, automatic/CVT transmission, ABS/ESP, SRS (airbag), AC/HVAC, BCM (body control module), power steering, EMCD/4WD/AHL (electronic multi-control drive/4-wheel drive/automatic headlight leveling), TPMS (tire pressure monitoring system). The presence of specific modules will vary depending on the vehicle.

Important Note: An HVAC module might display DTCs B1504 or B150A during diagnostics due to insufficient sunload sensor illumination. This is not indicative of a sensor fault.

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