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Jaltest  |  SKU: JDC111A / 5.5.2

Jaltest (JDC111A) | Knorr-Bremse (KB4-TA ABS) 7-pins OBD - 16-pins OBD2 Adapter Cable | Trailer

€139,95 incl.

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The Jaltest JDC111A is the adapter connecting the 7-pin connector of the Knorr-Bremse KB4-TA trailer ABS to the standard 16-pin OBD2 interface of the Jaltest Link. The diagnostic connector is located on or near the ABS control unit, typically at the front of the chassis; the specific trailer or semi-trailer built around it doesn't affect the connection.

The cable opens the diagnostic line to the ABS Trailer (KB4-TA) control unit, the anti-lock braking system it's designed for. With it, Jaltest equipment reads fault memory and wheel speed sensors per axle, controls valves and modulators, and adjusts brake system configuration; some of these functions only become available with the separate Knorr-Bremse Diagnostics module (ref. 71502007). Trailers have never had a standardized diagnostic connector requirement, which is why this connector remains in use as long as the system is on the road. The cable falls under Jaltest CV (commercial vehicles).

KEY BENEFITS

✔Works on any trailer brand: What matters is the Knorr-Bremse control unit, not the trailer manufacturer.
✔Access to the trailer's braking system: Fault codes, wheel speed sensors per axle, and control of valves and modulators.
✔No model year limit: Trailers have never been required to have a standard diagnostic connector.
✔Beyond reading data, also configure parameters, perform calibrations, and reset service messages on systems where Jaltest offers these procedures.

IMPORTANT NOTES

✕Some functions require the separate Knorr-Bremse Diagnostics module (ref. 71502007) in addition to your Jaltest license.
✕Only for the 7-pin KB4-TA connector: Newer TEBS generations use a different connector.
✕Jaltest also covers TEBS Gen2, TEBS G2.x, TEBS4 CAN, TEBS4 via K, iTEBS X, TIM G2, TRM, TPMS and iTPMS; TEBS generations have their own connector.
✕Requires a Jaltest Link with valid CV license; the cable itself does not add coverage.

Applications and features

Using this connection, you can access the Knorr-Bremse brake control unit on the trailer with Jaltest software.

Control units you can access

  • ABS Trailer (KB4-TA): The anti-lock braking system this cable is designed for.

What you can do

  • Read and clear fault codes: Access the fault memory of the brake control unit and clear it after repairs.
  • View live data: Real-time sensor readings, including wheel speed values per axle.
  • Actuate components: Directly activate valves and modulators to test their operation.
  • Configure parameters: Read and adjust brake system settings.
  • Perform calibrations: For systems where Jaltest offers a calibration procedure.
  • Reset service reminders: Clear service notifications after maintenance is completed.

Compatible vehicles and applications

The connector type is what matters, not the model. This cable fits any semi-trailer or trailer with a Knorr-Bremse KB4-TA ABS control unit featuring a 7-pin diagnostic connector; check which connector is on your chassis in person.

Application:

  • Semi-trailers and trailers with a Knorr-Bremse KB4-TA ABS control unit
  • All chassis manufacturers that install this control unit, such as Krone, Schmitz Cargobull, Kögel, Van Hool and Pacton
  • Model year not relevant: No OBD requirement applies to trailers
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Good to know: The diagnostic connector is located on or near the ABS control unit, typically at the front of the chassis. Knorr-Bremse uses a different connector for each generation. Check which connector your trailer has before ordering.

Package contents

  • 1x Jaltest (JDC111A) | Knorr-Bremse (KB4-TA ABS) 7-pin OBD to 16-pin OBD2 Adapter Cable | Trailer

Technical Specifications

Specification Description
Brand Jaltest (Cojali)
Reference Number JDC111A
Type Adapter Cable
Application Knorr-Bremse KB4-TA Trailer ABS
System-Side Connection 7-pin OBD
Interface-Side Connection 16-pin OBD2
Control Units ABS Trailer (KB4-TA)
Segment Trailer
Jaltest Module Jaltest CV (Commercial Vehicles)
Optional Addition Knorr-Bremse Diagnostics Module (ref. 71502007) for full feature set
Required to Use Jaltest Link with valid software license