OBDSTAR (M064) | Mercury 2+4-pins OBD – 16-pins OBD2 Adapter Cable | Motorboat
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2 years warranty on all products
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The OBDSTAR M064 is an adapter cable that converts a Mercury 2-pin and 4-pin OBD connection to a standard 16-pin OBD2 (J1962) connector. The cable is intended for use with Mercury motorboat engines and enables diagnostic connections on vessels that do not have a standardized OBD2 port. The cable is exclusively compatible with OBDSTAR diagnostic devices and programmers.
The adapter cable connects the brand-specific Mercury diagnostic plug — available in both 2-pin and 4-pin versions — to the 16-pin OBD2 side of the connected OBDSTAR device. This connection transmits diagnostic protocols that make the engine systems of the outboard or inboard motor accessible for reading and diagnosis. The split cable setup with two separate connectors on the vehicle side allows selecting the correct connection depending on the port type on the engine unit.
ADVANTAGES
IMPORTANT NOTES
Applications and functionalities
The M064 Adapter Cable enables the following diagnostic applications on Mercury motorboat engines via a connected OBDSTAR device.
- Reading fault codes: Retrieving stored and active DTCs (Diagnostic Trouble Codes) from the Mercury engine control unit for fault diagnosis.
- Clearing fault codes: Removing stored fault codes from the engine system after repair or inspection.
- Reading live data: Display of real-time engine parameters such as RPM, temperature, and fuel pressure during operation of the outboard or inboard engine.
- System diagnosis via brand protocol: Communication with the Mercury-specific diagnostic interface via the 2-pin or 4-pin OBD connector on the engine unit.
Compatible vehicles and applications
The compatibility below is based on available product information from OBDSTAR. Only confirmed Mercury marine engine applications are included.
Mercury Marine:
- Outboard engines (Outboard): Models with 2-pin or 4-pin Mercury OBD diagnostic connector
- Inboard engines and sterndrive engines (MerCruiser): Models with 2-pin or 4-pin Mercury OBD diagnostic connector
Package Contents
- 1x OBDSTAR (M064) | Mercury 2+4-pins OBD – 16-pins OBD2 Adapter Cable | Motorboat






