1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Universal Car Remote Central Kit. This system is designed to provide convenient keyless entry and central locking functionality for compatible 12V vehicle models. Please read this manual thoroughly before installation and use to ensure proper function and safety.
2. Product Overview
The Universal Car Remote Central Kit enhances your vehicle's security and convenience by allowing you to lock and unlock doors remotely. It typically includes a main control unit (host), a wiring harness, and two remote control key fobs.
2.1 Components
- 1 x Main Control Unit (Host)
- 1 x Wiring Harness
- 1 x LED Indicator
- 2 x Remote Control Key Fobs
- 1 x English Manual (this document)


3. Specifications
The following table details the technical specifications of the Universal Car Remote Central Kit:
| Feature | Specification |
|---|---|
| Model | HB-003 |
| Category | Keyless Entry |
| Material | Plastic |
| Color | Black |
| Origin | Mainland China |
| Applicable Vehicle | 12V Car Models |
| Host Input Voltage | DC12V ± 2V |
| Host Operating Current | Approx. 8mA |
| Host Frequency | Conventional 433MHz (Customizable 315MHz) |
| Remote Control Battery Type | CR2032, 3V |
| Remote Control Frequency | Conventional 433MHz (Customizable 315MHz) |
| Coding Method | Learning Type |
| Lock Type | Centre Lock |
| Remote Function | Control to open the tailgate |
| Remote Control Style | Pop-up keypad, can be matched with different models |
| Host Unit Weight | 260g |
| Color Box Size | 13 x 9.5 x 6.5 cm |
| Package Dimensions (approx.) | 16 x 10 x 8 cm (L x W x H) |
| Package Weight (approx.) | 0.25 kg (250g) |

4. Installation and Setup
Warning: Installation of this product requires knowledge of automotive electrical systems. Incorrect installation can damage your vehicle's electrical system or the product itself. Professional installation is highly recommended.
4.1 Pre-Installation Checklist
- Ensure your vehicle is a 12V system.
- Disconnect the vehicle's battery before starting any wiring.
- Identify the central locking system wires in your vehicle (lock, unlock, power, ground, accessory).
- Have appropriate tools: wire strippers, crimpers, multimeter, electrical tape, zip ties.
4.2 Wiring the Control Unit
The main control unit connects to your vehicle's central locking system via the provided wiring harness. Each wire in the harness has a specific function. Refer to the wiring diagram (if provided separately with your kit) or consult a professional auto electrician.


General Wiring Guidelines:
- Power (Red wire): Connect to a constant +12V power source.
- Ground (Black wire): Connect to a solid chassis ground point.
- Accessory (Yellow wire): Connect to a +12V accessory wire that is active when the ignition is on.
- Lock/Unlock Wires: These will connect to your vehicle's central locking motor wires. The specific configuration (positive trigger, negative trigger, or direct motor control) depends on your vehicle's system.
- LED Indicator: Connect the LED indicator to the designated output on the control unit for visual status.
- Tailgate Release (if applicable): Connect the tailgate release wire to your vehicle's tailgate release mechanism.
4.3 Remote Control Pairing (Learning Type)
The remote controls are typically pre-paired. If new remotes are needed or existing ones lose pairing, follow the learning procedure:
- Locate the learning button on the main control unit (often a small button on the side or inside the casing).
- Turn the ignition to the 'ACC' or 'ON' position.
- Press and hold the learning button on the control unit until the LED indicator flashes or you hear a beep.
- Press any button on the remote control you wish to pair. The LED should confirm successful pairing (e.g., a single flash or beep).
- Repeat for any additional remote controls.
- Turn off the ignition to exit learning mode.
5. Operation
Once installed and configured, operating the keyless entry system is straightforward using the remote control key fobs.
5.1 Remote Control Functions

- Lock Button (🔒): Press once to lock all vehicle doors. The vehicle's turn signals may flash once to confirm.
- Unlock Button (🔓): Press once to unlock all vehicle doors. The vehicle's turn signals may flash twice to confirm.
- Tailgate Release Button (often an open trunk icon): Press and hold (or press twice, depending on configuration) to open the vehicle's tailgate or trunk.
5.2 LED Indicator
The LED indicator provides visual feedback on the system's status:
- Slow Flash: System is armed (doors locked).
- Fast Flash: Indicates a door is ajar or system is in a specific mode (refer to detailed wiring diagram for specific interpretations).
- Off: System is disarmed (doors unlocked) or vehicle is in use.
6. Maintenance
6.1 Remote Control Battery Replacement
The remote control key fobs use a CR2032 3V coin cell battery. If the remote's range decreases or it stops responding, the battery may need replacement.
- Carefully open the remote control casing using a small flat-head screwdriver or a prying tool.
- Note the orientation of the old battery.
- Remove the old CR2032 battery.
- Insert a new CR2032 3V battery with the positive (+) side facing up (or as indicated by the remote's design).
- Snap the remote control casing back together securely.
6.2 General Care
- Keep the control unit and remote controls dry and away from extreme temperatures.
- Avoid dropping the remote controls or exposing them to strong impacts.
- Periodically check wiring connections for corrosion or looseness, especially after vehicle maintenance.
7. Troubleshooting
If you encounter issues with your Universal Car Remote Central Kit, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| Remote not working / Poor range | Dead or low remote battery Remote out of range Interference Remote de-programmed | Replace CR2032 battery Move closer to the vehicle Move away from strong radio sources Re-pair the remote control (Section 4.3) |
| Doors do not lock/unlock | Incorrect wiring Faulty central locking actuator Control unit malfunction Vehicle battery low | Check all wiring connections (professional assistance recommended) Test vehicle's central locking system manually Contact support Ensure vehicle battery is charged |
| LED indicator not working | Incorrect wiring Faulty LED Control unit malfunction | Check LED wiring Replace LED Contact support |
| Tailgate release not working | Incorrect wiring Faulty tailgate release mechanism Control unit malfunction | Check tailgate release wiring Test tailgate release manually Contact support |
If problems persist after attempting these solutions, please consult a qualified automotive technician.
8. User Tips
Based on general best practices for car keyless entry systems, here are some tips for optimal use:
- Test Regularly: Periodically test all remote functions (lock, unlock, tailgate) to ensure the system is working correctly.
- Keep Remotes Safe: Store spare remote controls in a secure location, and avoid exposing active remotes to water or extreme heat.
- Battery Life: Be mindful of the remote control battery life. If you notice a decrease in range, it's a good indication to replace the battery soon.
- Professional Installation: For complex vehicle electrical systems, always opt for professional installation to prevent damage and ensure correct functionality.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the seller's specific terms and conditions or contact the point of purchase. Keep your purchase receipt as proof of purchase.





