S1279 Module S.1279 Obd2 Male Female Cable Converter Cable Adapter

Module S.1279 for PPS2000 Lexia-3 | Citroen & Peugeot Diagnostic Module

The S.1279 module is an essential diagnostic module for Citroen and Peugeot vehicles, specifically designed to ensure the compatibility of your Lexia-3 diagnostic interface with certain models such as the Citroen Nemo, Peugeot Boxer III, and Jumper III. It connects the Lexia-3 interface via an OBD2 male-to-female cable and enables precise vehicle diagnostics.

The S.1279 module is particularly required for vehicle platforms where the communication structure of the diagnostic line has changed compared to older PSA models. Without this additional module, direct communication between the diagnostic software and control units may not be possible. By integrating the module, the diagnostic connection is correctly adapted, and stable data transmissions between the vehicle and the diagnostic device are ensured.

Compatible Vehicle Models

• Peugeot Bipper
• Peugeot Boxer III and Boxer III Minibus
• Citroen Nemo
• Citroen Jumper III and Jumper III Minibus

The S.1279 module is primarily used in commercial vehicles and compact vans, which have a partially different electronic architecture within the PSA Group. Although these vehicles use the standardized OBD2 connector, diagnostic protocols and communication lines may vary slightly. The S.1279 module ensures that the Lexia-3 diagnostic platform can communicate correctly with the relevant control units.

Typical Applications for these Vehicles

Many of the compatible vehicles are used in commercial applications. These include delivery services, craft businesses, courier companies, and municipal fleets. Especially in such applications, fast and reliable diagnostics are particularly important to minimize downtime.

• Service and maintenance work on vans
• Fault diagnosis in engine management systems
• Reading out fault codes from control units
• Checking sensor signals and actuators
• Software diagnostics within the vehicle's electrical system

Product Features

• Type: Diagnostic module S.1279
• Connection: OBD2 male to OBD2 female
• Compatibility: Works with Lexia-3 PPS2000 interfaces for Citroen and Peugeot vehicles

The S.1279 module is designed to be installed directly between the vehicle connector and the diagnostic interface. It functions as an adapter module, correctly translating the communication between the vehicle network and the diagnostic software.

Electrical and Technical Characteristics

The diagnostic communication of modern vehicles takes place via various bus systems. In addition to classic K-Line connections, CAN bus systems are primarily used today. The S.1279 module ensures that the signals are correctly forwarded to the Lexia-3 diagnostic unit.

Precise signal routing is crucial because diagnostic devices continuously exchange data packets between the vehicle and software during a session. Faulty signal levels or incorrect pin assignments can lead to control units not being recognized or diagnostic functions remaining incomplete.

Robust Construction for Workshop Use

Diagnostic equipment is frequently used in workshops. Adapters and modules must therefore be mechanically stable and ensure a reliable connection. The S.1279 module is designed for daily use and features robust connectors and a solid cable construction.

Technical Function of the Diagnostic Module

The S.1279 module performs an important mediating function within the diagnostic chain. While the diagnostic software operates on the computer or laptop and the Lexia-3 hardware takes over communication with the vehicle, the module ensures that the connection to specific vehicle platforms is established correctly.

Adaptation of Diagnostic Lines

Some PSA vehicles have different pin assignments within the OBD2 connector. The S.1279 module compensates for these differences and ensures that the corresponding diagnostic lines are correctly connected. This allows control units such as the engine control unit, ABS system, airbag control unit, or comfort modules to be recognized without problems.

Stable Data Communication

Stable data communication is particularly important for extensive diagnostic functions. These include, among others:

• Live data monitoring of sensor signals
• Fault code analysis
• Actuator tests
• Coding and adaptations
• Control unit identification

Without a correct adapter module, certain control units may not be addressable, or diagnostic functions may remain limited.

Practical Applications in the Workshop

In everyday workshop operations, the S.1279 module is frequently used when diagnosing PSA Group vehicles that are not fully supported by the standard wiring of the Lexia-3 interface.

Troubleshooting Commercial Vehicles

Vans such as the Citroen Jumper or Peugeot Boxer are used intensively and often cover high mileages. This can lead to electronic faults, for example, in the area of engine control, exhaust aftertreatment, or driver assistance systems.

With the help of the Lexia-3 diagnostic software and the S.1279 module, workshops can specifically read out fault codes and perform a detailed diagnosis. This enables rapid fault localization.

Diagnosis of Comfort and Body Systems

In addition to the powertrain, modern vehicles have numerous electronic comfort systems. These include, for example, central locking, electric windows, climate controls, or body control modules.

By using the S.1279 module, these control units can also be addressed correctly. This significantly simplifies diagnostic work and reduces the time required for troubleshooting.

Software Integration with Lexia-3 and PPS2000

The Lexia-3 diagnostic platform works in combination with the PSA software PPS2000 and, for newer systems, partly also with Diagbox. This software enables comprehensive diagnostics of Citroen and Peugeot vehicles.

Typical Diagnostic Functions

• Reading and deleting fault codes
• Display of live data
• System tests of individual control units
• Initialization and calibration of sensors
• Configuration changes within the vehicle electronics

For these functions to be fully utilized, hardware communication must work correctly. The S.1279 module ensures that the connection between the diagnostic interface and the vehicle remains stable.

Support of the Diagnostic Architecture

The PSA diagnostic software works with a structured control unit architecture. During a vehicle scan, all existing control units are recognized and analyzed. The S.1279 module supports this process by enabling a clean physical connection between the vehicle and the diagnostic device.

Scope of Delivery

• Module S.1279
• OBD2 male to OBD2 female cable

All components are designed to be used directly with existing Lexia-3 diagnostic interfaces. Additional configuration is generally not required.

Easy Integration into Existing Diagnostic Equipment

The S.1279 module is simply plugged between the vehicle connector and the diagnostic interface. This allows it to be integrated into existing workshop equipment without much effort.

Since many workshops already work with Lexia-3 or PPS2000, this module represents a practical extension to reliably diagnose additional vehicle models.

Expansion of Diagnostic Capabilities for PSA Vehicles

The S.1279 module for PPS2000 Lexia-3 significantly expands the diagnostic capabilities for Citroen and Peugeot vehicles. By adapting the diagnostic connection, workshops can establish stable communication with the control units even on special vehicle platforms.

Especially for commercial vehicles such as the Peugeot Boxer III or Citroen Jumper III, the S.1279 module ensures a reliable connection between the diagnostic interface and the vehicle electronics. This allows faults to be identified more quickly, maintenance work to be carried out efficiently, and repairs to be planned precisely.

For workshops that regularly work with PSA vehicles, this diagnostic module is a valuable addition to existing diagnostic equipment and contributes to reliably performing professional diagnostic work.

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