Jaltest (JDC614A) | Mercury (A9) 2-pins OBD – 16-pins OBD2 Adapter Cable | Motorboat
Warranty directly via AsTools
Warranty directly via AsTools
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2 years warranty on all products
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Easy returns
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The Jaltest JDC614A is the diagnostic cable for Mercury marine engines; it connects the 2-pin A9 connector to the 16-pin OBD2 port on your Jaltest diagnostic tool. This connector is located in the engine compartment, on or next to the engine. Mercury uses different diagnostic connectors depending on the generation and system—in addition to this 2-pin A9, there's a 4-pin, a 10-pin MEFI, and a SmartCraft G3 connector. If you're working with the Jaltest Link V9, you'll also need the extension cable JDC100B.
Through this connection, your diagnostic equipment accesses the control units that Mercury runs on this connector. On the outboard side, these are the engine control modules PCM-555 and PCM-555 G3, ECM-555, ECM-555 G3, and ECM-70 G3 for Fourstroke engines, and the ECM DFI for Optimax engines; on the inboard side, the MEFI 1-2 and MEFI 3-4 for MerCruiser engines. You'll also gain access to the control electronics DTS G3 and TVM G3. The difference in coverage lies in the functions: the PCM and ECM-555 control units include parameters, calibration, and reset options, while the MEFI and ECM DFI do not. This cable falls under Jaltest Marine.
KEY FEATURES
IMPORTANT NOTES
Applications and Features
Through this connection, you can access the control modules of your Mercury engine and throttle/shift electronics using Jaltest software.
Control modules you can access
- PCM-555 and PCM-555 G3 — engine control: The engine electronic control system, with fault codes, live data, sensor readings, component activation, ECU information, parameters, calibration, reset, and real-time monitoring.
- ECM-555, ECM-555 G3, and ECM-70 G3 — engine control: Control modules for Fourstroke engines, with the same feature set.
- ECM DFI — engine control: Direct fuel injection control for Optimax engines, with fault codes, sensor readings, component activation, ECU data, and live monitoring.
- MEFI 1-2 and MEFI 3-4 — engine control: Fuel injection systems for MerCruiser inboard engines.
- DTS G3 and TVM G3 — throttle/shift electronics: Digital throttle and shift control, plus steering control.
What you can do
- Read fault codes: Access the engine control fault memory and view detailed descriptions of detected issues.
- View sensor data and monitor live: Track real-time sensor readings while the engine is running.
- Component Control: Direct control of engine management actuators.
- Parameters, Calibration & Reset: Available on PCM and ECM-555 control units; these functions are not supported on MEFI and ECM DFI systems.
Compatible Vehicles & Applications
The connector type determines compatibility, not the engine model.This cable is designed for the 2-pin A9 connector. Jaltest Marine covers Mercury outboard and inboard engines; check your engine's connector type in person to confirm compatibility.
Mercury:
- Fourstroke Series: Outboard engines from 15 to 300 hp, including Jet Fourstroke variants
- Verado Series: Outboard engines from 135 to 600 hp
- Optimax Series: Outboard engines from 75 to 250 hp
- Pro XS, Pro Max & SeaPro: Outboard engines from 15 to 500 hp
- MerCruiser Inboard: Including 4.3, 5.0, 5.7, 6.2, 7.4, 8.1 and 8.2 MPI and MAG models, 496 MAG, Scorpion and Vazer engines
Package Contents
- 1x Jaltest (JDC614A) | Mercury (A9) 2-pin OBD – 16-pin OBD2 Adapter Cable | Marine Engine
Technical Specifications
| Specification | Description |
|---|---|
| Brand | Jaltest (Cojali) |
| Reference Number | JDC614A |
| Type | Adapter Cable |
| Application | Mercury marine engines (A9 connector) |
| Engine-Side Connector | 2-pin OBD |
| Interface-Side Connector | 16-pin OBD2 |
| Control Units | PCM-555 and PCM-555 G3, ECM-555, ECM-555 G3, ECM-70 G3, ECM DFI, MEFI 1-2 and MEFI 3-4 (engine control), DTS G3 and TVM G3 (management electronics) |
| Segment | Motorboat |
| Jaltest module | Jaltest Marine |
| Part of cable kit | Marine cable kit vessel (70002008), inboard (70002009) and outboard (70002025) |
| Extension cable required | JDC100B (2.5 m SUBD-26) when used with Jaltest Link V9 |
| Required to use | Jaltest Link with valid software license |

To ensure you always have access to the latest software updates and releases for your Jaltest device, it's important that you register the correct distributor.
Only the authorized distributor can perform new software installations and updates. When you designate us as your distributor, we can handle this for you and guarantee that your device stays current and runs smoothly.
How does it work?
-
Download and complete the change form
You can find the form as a PDF file here. -
Send us the completed form
You can easily do this by email to support@astools.eu. -
We'll take care of the rest
With the form, we can notify Jaltest of the change and officially register you as our customer.






