Jaltest (JDC201A) | Volvo 8-pins OBD1 - 16-pins OBD2 Adapter Cable | Commercial and Work Vehicle
Warranty directly via AsTools
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
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
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
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 JDC201A is the diagnostic cable for the round 8-pin connector from Volvo Trucks; the cable brings that connection to the 16-pin OBD2-input of the Jaltest equipment. The 8-pin connector is located in the cab and is used on pre-Euro IV generation vehicles.
With this connection, the Jaltest equipment reads out the control units that Cojali manages for these Volvo generations: The engine control EDC, the central VECU, the transmission control TECU with the diagnostic unit GECU, the braking systems ABS and EBS, the air suspension ECS and the instrument cluster, body, and tachograph modules. The number of these varies significantly by model: On the FL 6, Jaltest covers the engine, VECU, brakes, instrument panel and air suspension, while the list for the FH 12 V2 includes dozens of units. Volvo stuck with this proprietary round connector until the introduction of Euro IV (October 2005); after that, the 16-pin OBD2 connector became standard and you won't need this cable. The cable falls under Jaltest CV (commercial vehicles).
KEY FEATURES
IMPORTANT NOTES
Applications and functionality
Through this connection, you can access with Jaltest software the control units that Cojali supplies for Volvo truck generations before Euro IV. Which units are present varies by model and year of manufacture.
Control units you can access
- EDC Euro 3, Electronic Diesel Control: The engine control of the D-series engines in this generation; on the latest model years, Jaltest also supports EDC Euro 4/5.
- VECU, Vehicle Electronic Control Unit: The central vehicle control unit of the chassis.
- TECU, Transmission Electronic Control Unit and GECU, Gearbox lever: The transmission control and the gear lever unit.
- ABS, Antilock braking system and EBS 2.X / EBS 5 / EBS Gen 2: The braking and brake management systems from this period.
- ECS, Electronically controlled air suspension: The electronically controlled air suspension, including on the FL 6.
- IC, Instrument cluster and MD, Instrument cluster - display: Instrument panel and display, with serial number and software version of the unit.
- CC, Body computer, BBM, Bodywork Module and LCM, Light Control Unit: Body, structure and lighting modules.
- SRS, Supplemental Restraint System and TCO, Tachograph: Airbag system and tachograph.
What you can do
- Read and clear fault codes: Read the fault memory of the control unit, with a description of the detected fault.
- View live data: The current values of the sensors connected to the control unit, displayed as numbers and graphs.
- Activate components: Directly activate parts to determine whether the fault is in the component itself or in the wiring.
- Configure Parameters: Write configurations and settings to the control unit.
- Run Calibrations: For systems where Jaltest offers a calibration procedure, such as after component replacement.
- Reset Maintenance: Reset the service counter through the vehicle's maintenance system.
Compatible Vehicles and Applications
The connector type determines compatibility, not the model.This cable works with any Volvo truck featuring the round 8-pin diagnostic connector from before Euro IV. The Jaltest CV software includes exact production years for the truck generations listed below; check which connector is installed in your cab on-site.
Volvo Trucks:
- FH 12 (all series up to V2): (1993 - 2005)
- FH 16 (all series up to V2): (1993 - 2005)
- FM 7 / FM 10 / FM 12: (1998 - 2005)
- FM 9 V2: (2002 - 2005)
- FL 6: (1985 - 2005)
- FL 7: (1985 - 2000)
- FL 10: (1985 - 2000)
- FL 12: (1995 - 2000)
Package Contents
- 1x Jaltest (JDC201A) | Volvo 8-pin OBD1 to 16-pin OBD2 Adapter Cable | Commercial and Work Vehicles
Technical Specifications
| Specification | Description |
|---|---|
| Brand | Jaltest (Cojali) |
| Reference Number | JDC201A |
| Type | Adapter Cable |
| Application | Volvo Trucks (FH, FM and FL generations pre-Euro IV) |
| Vehicle-side connector | 8-pin OBD1 |
| Interface-side connector | 16-pin OBD2 |
| Control Units | EDC (engine), VECU (vehicle control unit), TECU and GECU (transmission), ABS and EBS (braking), ECS (air suspension), IC and MD (instrument cluster and display), CC, BBM and LCM (body, structure and lighting), SRS (airbag), TCO (tachograph) |
| Segment | Commercial and Work Vehicles |
| Jaltest module | Jaltest CV (commercial vehicles) |
| Part of cable set | Truck and Bus Cable Set (29362) |
| 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.






