OBDSTAR (M070) | Tohatsu 18-pins ECU – 16-pins OBD2 Adapter Cable | Motorboat
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The OBDSTAR M070 is an adapter cable that converts a Tohatsu 18-pin ECU connection to a 16-pin OBD2 (J1962) connector. The cable is designed for use with OBDSTAR readers or programmers and enables diagnostics on Tohatsu outboard motors equipped with an 18-pin ECU diagnostic port. The cable features a robustly shielded cable body with lockable connectors on both ends.
The M070 mechanically and electrically connects the 18-pin ECU port of the Tohatsu engine to the 16-pin OBD2 input of the connected OBDSTAR diagnostic device. Through this connection, the diagnostic signals from the engine control unit are transmitted to the reader, allowing functions such as reading fault codes and retrieving live engine data. The pin configuration of the 18-pin Tohatsu connector differs from the standard OBD2 layout, making this specific adapter cable necessary to establish communication.
ADVANTAGES
KEY POINTS
Applications and functionalities
The M070 Adapter Cable supports the following diagnostic functions on Tohatsu outboard motors via compatible OBDSTAR equipment.
- Read fault codes: Stored and pending fault codes are read from the outboard motor’s ECU, allowing the cause of a malfunction to be identified.
- Clear fault codes: After diagnosis and repair, stored fault codes can be erased from the ECU memory via the connected OBDSTAR device.
- View live datastream: Real-time engine parameters such as RPM, water temperature, and fuel pressure are read via the ECU connection and displayed on the diagnostic device.
- Retrieve ECU information: Data about the engine control unit, including software version and identification numbers, can be read for documentation or verification purposes.
Compatible vehicles and applications
The compatibility below is based on available product information from OBDSTAR. Only Tohatsu outboard motors with an 18-pin ECU diagnostic port are supported.
Tohatsu:
- Outboard motors with 18-pin ECU connection: Check the OBDSTAR compatibility list for specific engine models and production years.
Package Contents
- 1x OBDSTAR (M070) | Tohatsu 18-pins ECU – 16-pins OBD2 Adapter Cable | Motorboat






