Coach & Bus Week, May 2017 'Diagnostic Solutions’

A Diagnostic Conundrum

One of the most challenging and time consuming problems for workshops and service technicians maintaining multi-make fleets is the ever growing diversity of electrical equipment on bus and coach, in addition to the numerous OE imports, and body and chassis combinations. All of which impacts the efficacy of continuing vehicle repairs and maintenance, and the diagnosis of faults.

In response to this, over the past 20 years ACTIA has been at the forefront of designing integrated system solutions that optimise vehicle hardware, thereby reducing the need for bolt-on systems, controllers, and ECU interfaces. By combining off-board tools and services through a series of comprehensive diagnostic tools and systems, workshops are empowered to improve capabilities and reduce all-important vehicle downtime.

Comprehensive Solutions

ACTIA’s Multi-AID, Multi-MUX, and Multi-DIAG diagnostic tools offer complete solutions to meet the many needs and requirements of multi-make workshops.

By providing 2-way communication with the vehicle from an embedded system level, technicians receive a fast diagnosis of performance and faults, including body electronics, engine, transmission, brakes and suspension, thereby providing a thorough maintenance and preventative solution.

Get Connected

With its focus on UK manufactured buses and coaches from ADL, Optare, and Plaxton, Multi-AID offers extensive access to the Multi-BUS electrical system to identify stored faults, view and control I/O status, adjust parameters, and download, configure and view network layouts.

In addition, optional remote access is available for ACTIA’s Multi-BUS system through its telematics platform. As if connected by cable, bus operators can monitor the electrical status of their vehicles, and even fix problems from their offices.

Multi-MUX provides similar diagnosis functions by integrating with the Acti-MUX electrical system. Via a single communications interface and a suitable laptop or tablet PC, Multi-MUX links with the vehicle’s major systems and again removes the need for several ECU interfaces.

To complement Multi-AID/Multi-MUX, ACTIA designed Multi-DIAG Bus & Truck, a multi-make solution which allows more time-efficient fault diagnosis of gearboxes, brakes, suspension, Adblue faults, and so on, for all major truck, bus, coach and trailers. With integrated technical documentation and wiring diagrams, the user is guided through diagnostic operations step-by-step.

ACTIA has also developed the PassThru+ XS 2G kit, which is a VCI that assists you to communicate and reprogram a vehicle’s ECU according to the J2534 and J2534-1 specifications.

Having developed the first electronic diagnostics in the 1980s, ACTIA’s diagnostic tools support numerous vehicle systems, such as Multi-BUS, Acti-MUX, Aladin, Kibes, Optare, Alexander Dennis, Plaxton, as well as the optional support for Cummins, Allison, and Voith, making them some of the most widely used, and valuable, solutions on the market.


ACTIA was founded in 1986 and, with subsidiaries in 16 countries, is a market leading specialist in electronic diagnostics and garage equipment for repairing and testing vehicles, and onboard systems for buses, coaches, trucks, and other commercial vehicles.

T: 01686 611150