ACTIA 504273039 I/OU FLEX NG – Irisbus Input/Output Module
Original ACTIA I/OU FLEX NG module with OEM part number 504273039, also written as 50 42 73 039. The module manages input and output signals within the bus electrical system. It has been tested before sale and comes with a 6-month warranty.
Applications of the ACTIA I/OU FLEX NG Module
The 504273039 module is used in selected configurations of Irisbus buses manufactured approximately from the mid-2000s onwards:
- Irisbus Crossway – selected intercity bus versions,
- Irisbus Citelis – selected city bus versions,
- Irisbus Arway – selected intercity versions,
- Irisbus Crealis – selected city bus configurations,
- Irisbus Magelys – selected coach versions,
- Irisbus Proway and Daily Tourys – selected equipment configurations.
Compatibility does not depend solely on the model, year or engine capacity. Before purchasing, compare part number 504273039, the I/OU FLEX NG designation, connectors and configuration with the original module.
Common Symptoms of a Faulty I/O Module
A faulty input/output module may cause symptoms including:
- selected electrical equipment in the bus not operating,
- loss of control over lighting, doors or body equipment,
- intermittent operation of several circuits at the same time,
- module communication faults within the vehicle network,
- no diagnostic communication with the module,
- electrical devices switching off or activating unexpectedly.
These symptoms may also have other causes, including faults in the wiring, connectors, power supply or communication bus. Vehicle diagnostics are recommended before replacing the module.
Programming and Module Preparation
The ACTIA 50 42 73 039 module is fully tested. Depending on the bus configuration, coding, parameterisation or synchronisation using suitable diagnostic equipment may be required after installation.
- the configuration must correspond to the equipment installed in the specific bus,
- data transfer from the old module is possible only if its condition and the technology used allow it,
- the module is not offered as VIRGIN or as an unconditional Plug & Play unit,
- the required preparation should be determined before purchase based on the part number of the original module.
Frequently Asked Questions
Is the ACTIA 504273039 module compatible with the Irisbus Crossway?
The module is used in selected Irisbus Crossway versions. Compatibility must be confirmed by comparing part number 504273039, the I/OU FLEX NG designation, connectors and equipment configuration.
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Is the 50 42 73 039 module compatible with the Irisbus Citelis or Arway?
This module is used in selected Citelis and Arway buses, but the vehicle model alone is not sufficient to confirm compatibility. The part number of the original module must match.
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Does the ACTIA I/OU FLEX NG require programming after installation?
Coding, parameterisation or configuration matching to the bus equipment may be required. It should not be assumed that the module will operate in every vehicle without additional procedures.
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Can the Irisbus 504273039 module be cloned?
The possibility of transferring the configuration depends on the condition of the original module and the technology used. The scope of the service should be confirmed individually before sending the module.
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Has the ACTIA input/output module been tested?
Yes. The module offered has been tested before sale and comes with a 6-month warranty. However, part number and configuration compatibility must be confirmed before installation.
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