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OBDSTAR  |  SKU: M085

OBDSTAR (M085) | MTU 12-pins OBD – 16-pins OBD2 Adapter Cable | Motorboat

Regular price
€59,95 incl.
€49,55 excl.

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The OBDSTAR M085 connects the round 12-pin MTU diagnostic connector on the engine to a 16-pin OBD2 (J1962)-port for your OBDSTAR diagnostic equipment. The engine-side connector features a cylindrical housing with a locking ring, characteristic of MTU systems in marine environments.

MTU marine engines in motorboat applications lack a standard OBD2 port. This cable remaps the pin configuration from the 12-pin connector to the corresponding OBD2 pins, ensuring communication protocols such as CAN-bus or K-line reach your diagnostic scanner correctly.

What this cable unlocks is the engine control system of your MTU motor: fault codes, engine parameters, and system data. The cable is designed exclusively for OBDSTAR diagnostic scanners and programmers, and the capabilities of your specific device determine what data is actually available.

KEY BENEFITS

✔Direct 12-pin connection — links to a standard OBD2 port without additional adapters.
✔Cylindrical locking connector — the locking ring on the engine side keeps the connection mechanically secure, suited to marine environments.
✔CAN-bus and K-line support — both protocols are carried through, making fault codes and engine parameters accessible.
✔Built for MTU marine engines — the pin layout matches the 12-pin MTU connector standard.

IMPORTANT NOTES

✕12-pin version only — MTU also uses 10-pin diagnostic connectors; those require a different cable.
✕Marine applications only — diagnostics for road transport or industrial vehicles are outside the scope.
✕OBDSTAR equipment only — this cable is not compatible with diagnostic tools from other manufacturers.
✕Cable without built-in coverage — available functions depend on the software of your connected OBDSTAR device.

Applications and Features

Through the 12-pin connector, you access the engine management system of the MTU marine engine.

Control units you can reach

  • Engine management system: the engine control of the MTU marine engine behind the 12-pin round connector.
  • Other modules: which additional units are accessible on board depends on your system configuration.

What you can do

  • Read fault memory: retrieve stored diagnostic trouble codes from the engine management system to identify faults in engine components.
  • Clear fault codes: remove stored codes after diagnosis and repair, with the cable providing the communication link.
  • Monitor live data: read real-time engine parameters such as RPM, temperature and pressure via the CAN-bus or K-line connection.
  • Marine engine system diagnostics: access to the MTU engine system in motorboat applications via the 12-pin round connector.
  • Please note: what you can actually perform depends on the OBDSTAR device and its accompanying software.

Compatible vehicles and applications

The 12-pin round MTU connector is what matters, not the engine type. Compatibility is based on available source data; specific engine models with production years are not listed.

  • MTU (Motoren und Turbinen-Union): marine engines with 12-pin round OBD connector, motorboat application
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Good to know: The 12-pin MTU diagnostic connector is typically located directly on or near the engine management system of the marine engine; consult the documentation for your specific MTU engine model to find the exact location. Verify that the MTU connector has twelve pins and not ten before ordering.

Package contents

  • 1x OBDSTAR (M085) | MTU 12-pin OBD – 16-pin OBD2 Adapter Cable | Motorboat

Technical specifications

Specification Description
Brand OBDSTAR
Part number M085
Type Adapter cable
Application MTU 12-pin round diagnostic connector on marine engines
Vehicle-side connection MTU 12-pin OBD
Device-side connection 16-pin OBD2
Communication CAN-bus and K-line
Control units Marine engine management system
Segment Motorboat
Supported brands MTU (Motoren und Turbinen-Union)
Model range Not limited by model year; determined by the presence of the 12-pin round MTU connector
Required to use OBDSTAR diagnostic scanner with marine coverage, such as the Marine Master or an iScan variant
Additional requirements None; the cable operates without an adapter or power supply
Weight 0.1 kg