BSI BSI (BSI Systems Interface) central control unit for BSI 2004 H03-01 for Citroën/Peugeot. The unit ensures multiplex communication and control of comfort and bodywork functions – from central locking and wipers to lighting to immobilizer. Suitable as a replacement of the original episode with the same codes. Disasted from the Peugeot 307 1.6 16V, 2008.

BSI is located in the interior at the fuse panel (usually on the left under the dashboard at the driver). The defect of this unit often manifests irregular or completely non -functional body functions. The right choice by codes and subsequent coding in the car is essential for full compatibility and trouble -free operation.

what the unit controls
– central locking and remote control
– rudders, lighting, fog lights, interior lighting
– Wipers, washer, comfort function (windows, etc.)
– Communication after Can/Van with other control units and immobilizer

typical manifestations of BSI defects
– spontaneous separation or outages of lights or wipers
– Displicated distance/central, error messages on the dashboard
– Start problems caused by an immobilizer
– repeated loss of configuration after battery voltage drop
Frequent causes of damage in older dog cars are moisture in the unit space, voltage tips when recharging or disconnecting the battery and fatigue defects on plates or relays.

Mounting and coding
Always compare the numbers on the label and the hardware/boot version when changing BSI. After physical installation, it is necessary to adapt/telekoding through the diagnostics of the PSA (Diabox/Lexia/PP2000) – recording of the car configuration, pairing with immobilizer and keys. During the work, ensure stable power supply, follow the disconnection/connection procedure and back up the configuration in advance if possible.

Compatibility and verification
Determine the match primarily according to the dog number and type designation BSI 2004 H03-01 and at the same time compare the hard/boot version and connector equipment. Units within the BSI 2004 series may have various hardware and software revisions; When the version is different, functionality and necessary coding may vary.

technical information

• Manufacturer: Johnson Controls
• Model: BSI 2004 H03-01 (dismantled from Peugeot 307 1.6 16V, 2008)
• Product codes: PSA 9663510380
• Additional numbers: hard 28119737-1 and; Boot 21676031-5 B

For the correct function in your car, we recommend that you carefully verify the codes match and consult the coding procedure with the diagnostics of the dog. This episode is suitable for car mechanics and experienced home repairers looking for a quick and cost -effective solution of comfort electronics for Citroën and Peugeot.

Original Johnson Controls BSI 2004 H03-01 central body/comfort module for Citroën and Peugeot vehicles. This unit combines the fuse box, CAN gateway and controls functions such as central locking, lighting, indicators, wipers, electric windows and immobilizer. Commonly searched by part numbers 9660105780, 6580CX, 6580KC and 1660728380.

Compatibility And Origin

Unit removed from Peugeot 307 1.6 16V, year 2007. Compatibility with other Citroën/Peugeot models is possible but must be confirmed by exact part number, hardware/software index (H03-01), VIN and vehicle equipment. Matching references is critical because pinout, configuration and firmware versions may differ.

Symptoms And Causes

Failing BSI modules on older PSA vehicles typically cause intermittent electrical faults (lights, wipers, indicators, central locking), diagnostic communication errors and, in some cases, inability to start due to immobilizer issues. Common causes include moisture ingress, connector oxidation and voltage spikes from jump-starts or a discharged battery.

Replacement, Coding And Installation

When replacing the BSI you must transfer immobilizer data and configuration (memory cloning) or set the unit to a virgin state and then program it and pair the vehicle keys using PSA diagnostic tools (DiagBox/Lexia/PP2000). Follow correct battery disconnection procedure: switch off ignition, lock the vehicle, wait several minutes for modules to sleep, then disconnect the negative terminal. After installation reconnect the battery, perform coding and verify all functions.

Technical Information

• Manufacturer: Johnson Controls (PSA BSI 2004)
• Model: BSI 2004 H03-01
• Product Codes: 9660105780; 6580CX; 6580KC
• Additional Numbers: 1660728380

Recommendations

Compare labels and connectors on your original BSI before purchase. If unsure, verify compatibility by VIN and exact part codes. Ideal for workshops and DIY mechanics needing an original PSA BSI unit to restore full comfort system functionality quickly and cost-effectively.

As a critical part of the vehicle’s onboard systems, the BSI (Built-in Systems Interface) manages various functionalities including lighting control, power windows, and more. Regular replacement of this unit is recommended every few years to avoid electrical issues and ensure smooth operation. A malfunctioning BSI can lead to various problems such as lighting failures or malfunctioning electronic accessories.

Technical Information

• Manufacturer: Johnson Controls
• Model: BSI 2004 H03-01
• Product Codes: 9660105780, 6580AQ
• Other Numbers: 6580HV, 1660727980

Ensure you have the correct part for your vehicle by checking compatibility before purchase. This high-quality component is an excellent choice for maintaining the electronic integrity of your Citroën or Peugeot vehicle.

With product codes such as 9660105780, 6580CX, and 6580KC, this module integrates seamlessly with your vehicle, providing critical electronic control functions. It is important to replace the BSI unit when you experience issues related to vehicle comfort or functionality, such as seating and climate control malfunctions.

Regular inspection and timely replacement of this unit can help prevent unexpected vehicle failures and maintain the overall performance and comfort of your ride.

Technical Information

• Manufacturer: Johnson Controls
• Model: BSI 2004 H03-01
• Product Codes: 9660105780
• Additional Numbers: 6580CX, 6580KC