OBDSTAR (M074) | Yanmar 3-pins OBD – 16-pins OBD2 Adapter Cable | Internal combustion engine
The OBDSTAR M074 is an adapter cable that converts a Yanmar 3-pin diagnostic connector to a standard 16-pin OBD2 port (J1962). The cable is designed for use with OBDSTAR diagnostic devices or programmers and enables diagnostics on Yanmar combustion engines equipped with a proprietary 3-pin connector. The cable features a Yanmar-specific 3-pin connector on one end and a standard OBD2 female connector on the other.
The adapter cable connects the diagnostic port of the Yanmar engine to the OBDSTAR diagnostic device via the OBD2 interface. The 3-pin Yanmar connector plugs directly into the engine-specific diagnostic socket, after which the signal is transmitted through the cable wiring to the 16-pin OBD2 female side. This allows the OBDSTAR device to communicate with the engine control unit (ECU) of the Yanmar engine for diagnostic and reading purposes. The cable length and wiring are tailored to the pin configuration of the Yanmar protocol, ensuring the correct signal lines are passed to the connected device.
ADVANTAGES
KEY POINTS
Applications and functionalities
The OBDSTAR M074 Adapter Cable supports the following diagnostic applications on Yanmar engines via a compatible OBDSTAR device.
- Read fault codes: Stored diagnostic trouble codes (DTCs) are read and displayed on the OBDSTAR device through the connection with the Yanmar ECU.
- Clear fault codes: After diagnosis, fault codes can be cleared from the engine control unit memory via the connected OBDSTAR device.
- Live data frames: Reading real-time engine parameters such as RPM, temperatures, and sensor values during operation of the Yanmar engine.
- Connection conversion: Conversion of the Yanmar 3-pin diagnostic port to a 16-pin OBD2 connector for use with OBDSTAR diagnostic hardware.
Compatible vehicles and applications
The following Yanmar engines with a 3-pin diagnostic connector and combustion technology are compatible with the OBDSTAR M074 Adapter Cable when used with a compatible OBDSTAR device.
Yanmar:
- Yanmar internal combustion engines with 3-pin OBD diagnostic connector
Package Contents
- 1x OBDSTAR (M074) | Yanmar 3-pin OBD – 16-pin OBD2 Adapter Cable | Internal combustion engine




