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Jaltest  |  SKU: JDC304A

Jaltest (JDC304A) | Wabco (ATC/MTS) 4+4-pins OBD - 16-pins OBD2 Adapter Cable | Bus

Regular price
€122,95 incl.
€101,61 excl.

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The Jaltest JDC304A connects the two 4-pin diagnostic connectors from Wabco bus electronics to the 16-pin OBD2 socket where your Jaltest Link diagnostic cable plugs in. Behind that socket, the cable splits into two branches, each with a black 4-pin connector featuring a locking clip and two rows of two positions. One branch carries yellow, white and blue wires, the other red, black and green. The cable measures 28 to 30 cm in length.

With both branches connected, the Jaltest software reaches two control units that have their own electronics alongside the drivetrain. These are the ATC and the ATC Coach, the bus's automatic climate control, and the MTS, the modular door control that operates the doors. This allows door faults and climate complaints to be assessed using fault codes and measured values rather than with a multimeter alone; for these two systems, coverage remains limited to reading data. The cable works with Jaltest Link V8.1 and V9 and falls under the Jaltest CV module.

ADVANTAGES

✔Behind the OBD2 coupling, the cable splits into two branches, so you can diagnose the climate control and door operation without switching connectors reached.
✔Determining is the Wabco control unit, not the bodywork manufacturer; Jaltest lists ATC and MTS among others in the coverage of Solaris and Solbus.
✔Door faults and climate complaints are easily fault codes and measurement values to be assessed rather than solely with the meter.
✔Compatible with both the Jaltest Link V8.1as theLink V9, so also compatible with the newer interface.

IMPORTANT NOTES

✕For ATC and MTS, Jaltest coverage remains with reading out: Component control, parameters and calibration are not covered in the compatibility table for these two systems.
✕Only for the 4+4-pin connector; other Wabco systems such as ABS/ASR, EBS, the ECAS air suspension and Tyre Pressure Monitoring Systemhave each their own connector.
✕The two connectors are not at the vehicle's OBD port but at the control unit itself, in a switchbox in the cab or by the door.
✕With 28 to 30 cm the cable is short, so you work next to the switchbox rather than from the driver's seat.

Applications and functionality

Via this dual connection you access the comfort and body electronics of the bus using Jaltest software. These are systems that operate independently of the powertrain and have their own control unit. The units listed below are covered by Jaltest's Wabco coverage.

Control units you can access

  • ATC and ATC Coach, automatic climate control: The bus climate control system, covered in Jaltest under climate management.
  • MTS, modular door control: The system that operates the bus doors, covered under electronic modules.

What you can do

  • Read and clear fault codes: Access the fault memory of the climate or door control unit and clear it after repair.
  • View measured values: The current sensor readings on the control unit, such as temperature sensors and door positions.
  • View system diagnostic messages: Jaltest displays the diagnostic message that the MTS control unit generates itself.

Compatible vehicles and applications

The system is what matters, not the bus brand. This cable is designed for the Wabco ATC climate control and the Wabco MTS door control with the 4+4-pin connector. Jaltest covers these units in the range of Solaris and Solbus. It is not the bus manufacturer that determines whether the cable fits, but the connector on the control unit.

Application:

  • Urban and regional buses: With a Wabco ATC climate control system on the 4+4-pin connector.
  • Buses with Wabco MTS door control: The modular control system that operates the doors.
  • Bus make irrelevant: Jaltest lists both systems in the coverage of Solaris and Solbus, among others.
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Good to know: The two 4-pin connectors are located on the control unit itself, in a switchbox in the cab or at the door, and not at the vehicle's OBD port. Wabco uses a different connector for each system. Check the bus itself to identify which connector is fitted to the control unit before ordering.

Package contents

  • 1x Jaltest (JDC304A) | Wabco (ATC/MTS) 4+4-pin OBD - 16-pin OBD2 Adapter Cable | Bus

Technical specifications

Specification Description
Brand Jaltest (Cojali)
Reference number JDC304A
Type Adapter cable
Application Wabco ATC climate control and Wabco MTS door control (bus)
Length 28–30 cm
Interface Jaltest Link V8.1 and V9
Vehicle-side connection 4+4-pins OBD (two black 4-pin connectors)
Interface-side connection 16-pins OBD2
Control units ATC and ATC Coach (climate control), MTS (door control)
Segment Bus
Jaltest module Jaltest CV (commercial vehicles)