1. Introduction
This manual provides detailed instructions for the installation, setup, and operation of the PSA-RZ-15 Canbus Box Decoder. This device is designed to integrate with your vehicle's electrical system, specifically for car radio installations in compatible Peugeot and Citroen models, facilitating communication between the new head unit and the vehicle's CANBUS system.
The PSA-RZ-15 Canbus Box Decoder is a compact module that translates CANBUS signals, ensuring functions like steering wheel controls, ignition sensing, and illumination signals are correctly transmitted to an aftermarket car radio.


2. Compatibility
The PSA-RZ-15 Canbus Box Decoder is compatible with a range of Peugeot and Citroen vehicles. Please verify your vehicle's year and model against the list below to ensure compatibility. It is also crucial to consider the original radio jack configuration.

Compatible Peugeot Models:
- Peugeot 308: 2012-2018
- Peugeot 308s: 2015-2018
- Peugeot 301: 2014-2018
- Peugeot 2008: 2020, 2014-2016
- Peugeot 4008: 2016-2019
- Peugeot DS5: 2013-2018
- Peugeot 508I: 2019
- Peugeot 408: 2014-2019
- Peugeot 3008: 2013-2019
- Peugeot 508: 2011-2016
- Peugeot 5008: 2017-2019
Compatible Citroen Models:
- Citroen C-Triumph: 2006-2010
- Citroen C5 Aireross: 2017
- Citroen Elysee: 2013-2018
- Citroen C4L: 2010-2018, 2019
- Citroen C4: 2009-2017
- Citroen DS5LS: 2014-2016
- Citroen C-Qurtre: 2015-2018, 2010-2016
- Citroen C5: 2010-2016
- Citroen C3-XR: 2014-2019
If you are unsure whether this product is suitable for your vehicle, please provide your vehicle information (year and model, and a picture of the original radio plug) to your supplier for assistance.
3. Specifications
| Attribute | Value |
|---|---|
| Model Name | Canbus+Cable |
| Item Type | Cables, Adapters & Sockets |
| Voltage | 12 V |
| Item Weight | 0.1kg |
| Origin | Mainland China |
| High-concerned chemical | None |
4. Safety Information
- Always disconnect the vehicle's power supply (battery) before beginning any electrical installation to prevent short circuits or damage to components.
- Ensure all connections are secure and properly insulated to avoid electrical hazards.
- Do not attempt to modify the Canbus box or its wiring. Unauthorized modifications can lead to malfunction or damage.
- If you are not experienced in replacing car parts or working with vehicle electronics, it is highly recommended to seek professional installation.
5. Installation and Setup
Follow these steps carefully for proper installation and setup of your Canbus Box Decoder.

5.1. Power Cable Installation Steps:
- Disconnect Vehicle Power Supply: It is highly recommended to disconnect the vehicle's battery before starting the installation.
- Remove Original Car Stereo: Carefully remove the existing car stereo from its mounting.
- Connect New Power Cable: Plug the new power cable (provided with your aftermarket radio or harness) into the corresponding port on the rear of the new radio. Then, connect this power cable to the original car wiring harness, ensuring all ports and pins match correctly.
- Install ACC Cable (if required): If your setup requires an Accessory (ACC) cable for ignition sensing, install it according to your new radio's instructions.
5.2. CANBUS Setup and Installation:
- Plug in CANBUS Decoder: Plug the CANBUS decoder (PSA-RZ-15) into the corresponding port on the power harness.
- Confirm CANBUS Protocol Compatibility: Before proceeding, confirm that the CANBUS protocol is compatible with your vehicle. This decoder is designed for specific Peugeot and Citroen models; ensure it matches your vehicle's requirements.
- Enter Head Unit Settings: Access the head unit's settings interface. Navigate to "Settings" and then to "Factory Settings." (Note: The exact menu path may vary depending on your aftermarket head unit model.)
- Set CANBUS Brand and Model: Within the factory settings, locate the CANBUS configuration options. Set the corresponding CANBUS brand (e.g., Peugeot, Citroen) and your specific vehicle model.
- Save and Restart: Click "Save" to apply the changes and then restart the head unit device. The CANBUS function should automatically take effect, enabling features like steering wheel controls and proper ignition sensing.
6. Operating Instructions
Once the PSA-RZ-15 Canbus Box Decoder is correctly installed and configured as per Section 5, its operation is largely automatic and integrated with your aftermarket car radio. The decoder works in the background to ensure seamless communication between your vehicle's CANBUS system and the new head unit.
- Automatic Functionality: After successful setup and device restart, the CANBUS functions (such as steering wheel controls, ignition signal, illumination, reverse gear signal, etc., depending on your vehicle and head unit) should automatically become active.
- No User Interaction Required: The Canbus box itself does not require direct user interaction during normal operation. It continuously translates signals between the vehicle and the radio.
- Verify Functions: After installation, test all integrated functions (e.g., steering wheel buttons, automatic light sensing, reverse camera activation) to ensure they are working as expected.
7. Maintenance
The PSA-RZ-15 Canbus Box Decoder is a low-maintenance electronic component. No regular maintenance is typically required.
- Secure Connections: Periodically check that all wiring connections to the Canbus box and the car radio remain secure and free from corrosion.
- Keep Dry: Ensure the Canbus box is installed in a dry location, away from moisture and extreme temperatures, to prevent damage.
- Cleaning: If necessary, gently wipe the exterior of the unit with a dry, soft cloth. Do not use liquid cleaners or solvents.
8. Troubleshooting
If you encounter issues after installing the Canbus Box Decoder, refer to the following troubleshooting tips:
- No Functionality (e.g., steering wheel controls not working):
- Check Connections: Ensure all power cables and the Canbus decoder are securely plugged into their respective ports on the radio and vehicle harness.
- Verify Head Unit Settings: Re-enter the head unit's "Factory Settings" and confirm that the correct CANBUS brand and vehicle model are selected and saved.
- Restart Head Unit: Perform a full restart of the car radio.
- Incorrect or Intermittent Functionality:
- Loose Connections: Inspect all wiring for any loose or improperly seated connections.
- Software Glitch: Sometimes a simple restart of the head unit can resolve minor software-related issues.
- Decoder Does Not Fit / Incompatible (e.g., for a 2003 Peugeot 307 2.0):
- Re-check Compatibility: Double-check your vehicle's exact year and model against the compatibility list in Section 2. The decoder may not be compatible with all years or specific sub-models.
- Original Radio Jack: Ensure the original radio jack configuration matches the requirements for this decoder.
- Contact Support: If your vehicle is not listed or you are unsure, contact your supplier with your vehicle details (year, model, and a picture of the original radio plug) for verification.
- Power Issues (Radio not turning on):
- Vehicle Power: Ensure the vehicle's battery is connected and fully charged.
- Fuse Check: Check the fuses related to the car radio and the vehicle's accessory power.
- Wiring Integrity: Verify that the power cable installation steps (Section 5.1) were followed correctly and there are no breaks or shorts in the wiring.
9. User Tips
- Verify Compatibility Thoroughly: Always confirm the decoder's compatibility with your specific vehicle model and year *before* starting installation. A common issue arises from incorrect model year matching.
- Professional Installation Recommended: If you lack experience with car electronics or wiring, it is strongly advised to have the Canbus box installed by a qualified professional to avoid damage to your vehicle or the device.
- Document Original Setup: Before removing your original car stereo, take photos of the wiring and connections. This can be invaluable for troubleshooting or if you need to revert to the original setup.
10. Warranty and Support
For warranty information, technical support, or further assistance, please contact the seller or manufacturer directly. Keep your purchase records handy when contacting support.





