Order before 16:00 on business days? Shipped the same day!

Fast & reliable shipping throughout Europe

Expert customer service with professional advice

Mega Sale: Discounts up to 75%! While supplies last!

Jaltest  |  SKU: JDC632.9

Jaltest (JDC632.9) | Mercury/Tohatsu 6-pins OBD - 26-pins DB26 Adapter Cable | Motorboat

Regular price
€171,95 incl.
€142,11 excl.

Warranty directly via AsTools

We handle warranty cases ourselves, quickly and without involving the manufacturer. Thanks to our own parts inventory and technical expertise, we can usually assist you immediately. Only in exceptional cases do we still send the product to the supplier.

2 years warranty on all products

All our products come with a 2-year factory warranty. This ensures you long-lasting quality and service.

Easy returns

You can easily request your return through your account. We will send you the return label by email. Return shipping costs are your responsibility.

Professional customer service

Our experts are ready to help you quickly and professionally, both online and in our physical store. Questions? Feel free to contact us!

The Jaltest JDC632.9 is the adapter connecting the 6-pin diagnostic connector of small Mercury and Tohatsu outboard engines to the 26-pin DB26-port on the Jaltest Link. This version does not terminate in OBD2: the DB26 connector connects directly to the SubD-26 input on the Link, without an OBD2 intermediate cable. On the engine side, the 6-pin connector is located under the engine cover.

The cable opens the diagnostic line to the engine control unit of these outboard motors: ECM by Tohatsu under Mercury model names and ECM (Engine Control Module) under Tohatsu model names — the same control unit with identical functionality. This allows diagnostic equipment to read fault codes and live data, control components, and monitor values while the engine runs; parameter configuration, calibration, and maintenance reset are not supported on this engine control unit. Jaltest supplies the cable for models in the 10-20 hp power class. The cable falls under Jaltest Marine.

KEY BENEFITS

Designed specifically for the 10-20 hp class of Mercury and Tohatsu, which share the same engine control unit.
Connects with the DB26 connector directly to the SubD-26 port on the Jaltest Link, without an OBD2 intermediate cable.
Provides fault codes and live data plus component testing, including direct tests on fuel injection and ignition.
Covers two brands with one cable: Mercury 15 and 20 FourStroke and Tohatsu MFS models in the same class.

IMPORTANT NOTES

10-20 hp models only. If you have a Tohatsu in the 40-60 hp class, the JDC633A is the correct 6-pin cable.
No parameter configuration, calibration, or maintenance reset on this engine control unit — you can read data, measure, and test, but cannot make adjustments.
With the Jaltest Link V9, the marine cable catalog for DB26 connections assumes the extension cable JDC100B (2.5 m SubD-26 with jack); please verify that you have it.
Requires a Jaltest Link with valid Marine license; the cable does not add coverage on its own.

Applications and features

Through this connection, you can access the engine control of small Mercury and Tohatsu outboard motors using Jaltest software.

Control units you can access

  • ECM by Tohatsu — Engine Control Module: This covers the engine management of Mercury models in this power class, including fault codes, live data, sensor readings, component activation, and control unit information.
  • ECM — Engine Control Module: The same control unit under Tohatsu model names, with the same feature set.

What you can do

  • Read fault codes: Access the engine control fault memory with detailed descriptions of detected issues.
  • View sensor data: Monitor current readings from all sensors connected to the engine control unit.
  • Activate components: Run active tests on the engine control, including direct fuel injection and ignition diagnostics.
  • Live monitoring: Track values in real time while the engine is running.

Compatible vehicles and applications

The connector type and power class determine compatibility, not the model name. This cable fits Mercury and Tohatsu outboard motors in the 10–20 hp power class with the 6-pin diagnostic connector. Jaltest Marine covers the models listed below; check under your engine hood to confirm which connector you have.

Mercury:

  • 15 FourStroke — control unit ECM by Tohatsu
  • 20 FourStroke
  • 15 SeaPro

Tohatsu:

  • MFS 15 — control unit ECM (Engine Control Module)
  • MFS 20
  • MFS 9.9
💡
Good to know: This adapter terminates in a 26-pin DB26 connector for the Jaltest Link's SubD-26 port; if you're using the 16-pin OBD2 cable instead, you'll need the JDC632A. The engine-side connection is the 6-pin connector located under the engine hood. Be sure to verify which connector your engine has before placing your order.

Package contents

  • 1x Jaltest (JDC632.9) | Mercury/Tohatsu 6-pin OBD - 26-pin DB26 Adapter Cable | Outboard Motor

Technical specifications

Specification Description
Brand Jaltest (Cojali)
Reference number JDC632.9
Type Adapter cable
Application Mercury and Tohatsu outboard motors, 10-20 hp
Engine-side connector 6-pin OBD
Interface-side connector 26-pin DB26 (SubD-26)
Control units ECM by Tohatsu / ECM (Engine Control Module)
Important for Jaltest Link V9 Catalog note: Marine cables with DB26 connectors require the extension cable JDC100B
Category Outboard Motor (marine)
Jaltest module Jaltest Marine
Part of cable set Not included in a cable set; available separately in the Jaltest catalog
Required to use Jaltest Link with valid software license