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OBDSTAR  |  SKU: M015A

OBDSTAR (M015A) | Honda 4-pins OBD – 16-pins OBD2 Adapter Cable | Motorboat

€25,95 incl.
€21,45 excl.

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The OBDSTAR M015A connects the 4-pin diagnostic port on Honda outboard and marine engines to the 16-pin OBD2 (J1962)-socket of your OBDSTAR diagnostic device. The 4-pin side plugs directly into the engine port.

Honda uses a proprietary 4-pin diagnostic connector on its outboard and marine engines instead of the standard automotive OBD2 socket. Communication runs over the K-line. This cable remaps the non-standard Honda port layout to the standardised J1962 pinout, allowing your diagnostic tool to read engine data correctly. What you gain is access to the outboard engine control unit. The cable itself adds no coverage — your device's software determines which Honda engines and functions are supported.

KEY BENEFITS

✔Correct pin mapping — the Honda-specific port layout is remapped to the J1962 standard your device expects.
✔Works in tight spaces — the compact cable design fits easily in the confined space around a marine engine.
✔No engine modification — the cable connects to the existing diagnostic port; engine wiring remains untouched.
✔Standard OBD2 at the device end — the 16-pin connector plugs directly into your device's OBD2 socket.

IMPORTANT NOTES

✕Not for Honda cars or motorcycles — the cable is designed for marine applications and not for road vehicles of the same brand.
✕4-pin connector only — Honda engines with a different connector type are not supported by this cable.
✕OBDSTAR equipment only — diagnostic systems from other manufacturers cannot be used with this cable.
✕Does not add vehicle coverage — which engines and functions are available depends on your device's software.

Applications and functionality

This connection gives you access to the engine electronics of the Honda outboard motor.

Control units you can reach

  • Engine control unit: The control unit of the outboard motor, connected to the 4-pin diagnostic port.
  • Other modules: Whether additional modules are accessible varies by engine and device.

What you can do

  • Read fault codes: Retrieve stored and active diagnostic trouble codes (DTCs) from the engine control unit.
  • Clear fault codes: Remove retrieved trouble codes from memory after diagnosis or repair.
  • Display live data: Monitor engine parameters such as engine speed, coolant temperature and fuel pressure during operation.
  • Note: Available functions vary by engine and OBDSTAR device.

Compatible vehicles and applications

The determining factor is the 4-pin diagnostic port on the engine, not the model. No separate Honda engine models or model years are specified; only outboard motors with this port are supported.

  • Honda: Outboard motors (motorboat) with 4-pin OBD diagnostic port.
💡
Good to know: The 4-pin Honda diagnostic port is typically located directly on or near the engine block of the outboard motor; the location may vary by engine model and year.Check that your engine has the 4-pin Honda port before ordering.

Package contents

  • 1xOBDSTAR (M015A) | Honda 4-pins OBD – 16-pins OBD2 Adapter Cable | Marine Engine

Technical specifications

General

The brand of the cable or adapter. It often has to match the brand of your diagnostic tool.Brand
OBDSTAR
The type of product: a separate adapter cable, an adapter without a cable or a complete set.Product type
Adapter cable

Suitable for

The brand of diagnostic tool the cable works with. A cable for one brand usually does not fit a tester of another brand.Compatible diagnostic tool
  • OBDSTAR
Whether the cable needs a separate power connection, for example via battery clamps. A passive cable works without one.Separate power supply required

Connections

The connector that plugs into the diagnostic port of the vehicle or machine. It must fit exactly.Vehicle-side connector
4-pin OBD
The connector on the side of your diagnostic tool or interface. Usually a 16-pin OBD2 connector.Tool-side connector
16-pin OBD2 (J1962)
The data lines through which the cable passes signals. The vehicle and the tester must use the same communication method.Communication
  • K-line

Size and weight

The weight of the cable or adapter.Weight
0.1 kg

Other specifications

Application
Honda outboard motors with 4-pin diagnostic port
Device-side Connection
16-pins OBD2 (J1962)
Control Units
Outboard motor engine control unit
Segment
Marine Engine
Model Range
Honda outboard motors equipped with 4-pin diagnostic port; specific models and production years not specified
Required to Use
OBDSTAR diagnostic device with marine coverage, such as Marine Master or IScan variant
Additional Requirements
None; cable operates without adapter or separate power supply