Supported protocols
The generic function supports ISO 9141-2, ISO 14230 and ISO 15765, subject to interface hardware. Ross-Tech interfaces do not support SAE J1850 VPW or PWM, used by many older US-market vehicles.
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Check the interface too
HEX-NET, HEX-V2 and HEX+CAN cover the listed ISO/CAN protocols. Legacy non-CAN interfaces cannot communicate using CAN; Micro-CAN supports CAN but not the two older ISO protocols for generic OBD.
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Choose the appropriate readout
Mode 1 provides emissions-related live data. Mode 9 can provide vehicle and calibration information, but the amount varies by car. Use the correct repair documentation for test interpretation.
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Sources / references 1
- Ross-Tech VCDS manual ↗Reviewed Oct 8, 2026
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