1. Introduction
The Hiworld PAF1.20 CanBus Decoder Adapter is designed to facilitate the installation of aftermarket car stereos in various PSA Peugeot and Citroen vehicles. This adapter ensures proper communication between your new head unit and the vehicle's existing CAN bus system, allowing features such as steering wheel controls, ignition (ACC), illumination, and reverse signals to function correctly.
2. Product Overview
The PAF1.20 system typically consists of a CanBus decoder module, a 16-pin main wiring harness, and an antenna adapter. These components work together to provide a seamless integration solution for your vehicle's audio system.
3. Specifications
| Attribute | Value |
|---|---|
| Model | PAF1.20 |
| Item Type | Cables, Adapters & Sockets |
| Voltage | 12 V |
| Material | Copper |
| Item Weight | 0.2 kg |
| Item Size | 10 x 10 x 10 cm (approximate) |
| Origin | Mainland China |
| High-concerned chemical | None |
4. Compatibility
This CanBus decoder adapter is compatible with various PSA Peugeot and Citroen vehicle models. Please verify your specific vehicle model and year against the list below:
- Peugeot: 307, 308, 2008, 3008, 508, 607, 301, 4008, 408, 5008 (models from 2010-2018, and 2008 models from 25.09.08 onwards)
- Citroen: C3, C4, C5, DS4, DS5, DS6, C3-XR, DS5LS
Note: Compatibility may vary based on specific vehicle trim levels and factory options. Always cross-reference with your vehicle's existing wiring and connectors.
5. Package Contents
Upon receiving your Hiworld PAF1.20 CanBus Decoder Adapter, please ensure all the following components are present:
- 1x Hiworld PAF1.20 CanBus Decoder Module
- 1x 16-PIN Main Wiring Harness
- 1x Antenna Adapter
6. Installation and Setup
Professional installation is highly recommended for this product. Incorrect wiring can damage your vehicle's electrical system or the adapter itself. Always disconnect the vehicle's battery before beginning installation.
6.1 General Steps:
- Prepare the Vehicle: Ensure the vehicle is turned off and the battery is disconnected. Remove the factory head unit from the dashboard.
- Connect the Main Harness: Connect the 16-pin main wiring harness to your new aftermarket head unit. Ensure all connections are secure.
- Integrate CanBus Decoder: Connect the Hiworld PAF1.20 CanBus decoder module to the designated connector on the main wiring harness.
- Connect Antenna Adapter: Attach the antenna adapter to the vehicle's antenna cable and then to the aftermarket head unit.
- Vehicle Connection: Connect the vehicle-specific end of the 16-pin main wiring harness to the corresponding connector in your vehicle's dashboard.
- Test Connections: Before fully reassembling the dashboard, reconnect the vehicle battery and perform a functional test of the new head unit and all integrated features (e.g., power, audio, steering wheel controls, reverse camera input if applicable).
- Final Assembly: If all functions are working correctly, carefully reassemble the dashboard.
6.2 Wiring Diagram:
Refer to the detailed wiring diagram below for specific wire color codes and their functions. This diagram illustrates the standard connections for the 16-pin radio plug.
Key to Wiring Diagram:
- White: Front speaker L+
- White/black striped: Front speaker L-
- Gray: Front speaker R+
- Gray/black striped: Front speaker R-
- Green: Rear speaker L+
- Green/black striped: Rear speaker L-
- Purple: Rear speaker R+
- Purple/black striped: Rear speaker R-
- Black: GND (Ground Wire / B-)
- Yellow: BATTERY (Constant Power Supply +12V)
- Red: ACC (Ignition Switch)
- Orange: ILLUMINATION (Illuminate Backlight)
- Pink: REVERSE (Reversing camera control line)
- Brown: KEY1 (Steering Wheel Control 1)
- Blue: ANT (Auto Antenna Power)
7. Operating Instructions
Once correctly installed, the Hiworld PAF1.20 CanBus Decoder Adapter operates automatically. It translates the vehicle's CAN bus signals into standard signals that your aftermarket head unit can understand. There are no user-adjustable settings on the decoder module itself.
- Steering Wheel Controls: If your aftermarket head unit supports steering wheel controls, the adapter will enable these functions. Configuration may be required within your head unit's settings.
- Ignition (ACC): Provides the accessory power signal to turn the head unit on and off with the vehicle's ignition.
- Illumination: Provides the illumination signal for dimming the head unit's display with the vehicle's headlights.
- Reverse Signal: Provides a reverse signal for automatic camera switching or parking assistance features.
8. Maintenance
The Hiworld PAF1.20 CanBus Decoder Adapter is designed to be maintenance-free. To ensure its longevity and proper function:
- Ensure all connections remain secure and free from corrosion.
- Avoid exposing the module or wiring to excessive moisture or extreme temperatures.
- Do not attempt to open or modify the CanBus decoder module, as this may void any warranty and could cause damage.
9. Troubleshooting
If you encounter issues after installation, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to head unit | Loose power connection, incorrect wiring, blown fuse. | Check all power connections (Yellow B+, Red ACC, Black GND). Verify vehicle fuses. Ensure the CanBus module is properly connected. |
| No sound from speakers | Loose speaker connections, incorrect speaker wiring. | Verify all speaker wire connections (White, Gray, Green, Purple pairs) are secure and correctly matched to the head unit. |
| Steering wheel controls not working | Incorrect KEY1 connection, head unit not configured for SWC. | Ensure the Brown KEY1 wire is correctly connected. Check your aftermarket head unit's settings for steering wheel control configuration and learning functions. |
| Illumination/Dimming not working | Incorrect Orange ILLUMINATION wire connection. | Verify the Orange ILLUMINATION wire is properly connected. |
| Reverse camera not activating | Incorrect Pink REVERSE wire connection. | Ensure the Pink REVERSE wire is correctly connected to the head unit's reverse input. |
10. User Tips
- Double-Check Compatibility: Before purchasing and installing, always confirm that the PAF1.20 model is specifically listed as compatible with your exact vehicle make, model, and year.
- Verify Pinouts: While the provided diagram is standard, it's good practice to verify the pinout of your vehicle's factory harness against the adapter's wiring, especially if you encounter unexpected behavior.
- Secure Connections: Use high-quality crimps, solder, or heat-shrink connectors for all wiring to ensure reliable and long-lasting connections.
- Test Thoroughly: Perform comprehensive testing of all head unit functions and vehicle features (e.g., door chimes, parking sensors, steering wheel controls) before fully reassembling the dashboard.
11. Warranty and Support
For warranty information, technical support, or assistance with installation, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.





