1. Product Overview
The weelye BDM-CSG4A is a 12V 2.4G receiver controller control box designed as a replacement part for children's electric riding cars. This unit features a slow start function, eliminating the need for an additional slow starter. It is crucial to ensure compatibility with your specific riding car model before installation.

Image 1.1: The BDM-CSG4A 12V Receiver Controller Control Box shown with its accompanying 2.4G remote control.
2. Compatibility and Identification
To determine if the BDM-CSG4A control box is suitable for your children's electric riding car, follow these steps:
- Open the damaged electric car: Carefully access the existing control box within the vehicle.
- Inspect the control box: Compare the appearance of your existing control box with the BDM-CSG4A. Pay close attention to the model number (BDM-CSG4A) and the connector type.
- Verify specifications: Confirm that your car operates on a 12V system and that the existing control box has a 7-pin red four-sided socket, matching the BDM-CSG4A.
If the appearance and specifications match, this replacement part should be compatible with your car.

Image 2.1: A detailed view of the BDM-CSG4A control box, highlighting the model number and connector port.
3. Installation and Pairing
3.1 Control Box Installation
- Disconnect Power: Before beginning, ensure the electric riding car's main power switch is turned off and the battery is disconnected to prevent electrical hazards.
- Remove Old Control Box: Carefully detach the wiring from the old control box and remove it from its mounting location. Note the orientation and connection points.
- Install New Control Box: Connect the wiring from the electric car to the BDM-CSG4A control box. Ensure all connections are secure and match the original configuration. The BDM-CSG4A 12V control box uses a 7-pin red four-sided socket.
- Secure Control Box: Mount the new control box in the designated location within the car.
- Reconnect Battery: Reconnect the car's main battery.
3.2 Remote Control Battery Installation
The remote control requires 2 AAA batteries (1.5V each).
- Open Battery Compartment: Locate the battery cover on the back of the remote control. Use a small screwdriver if necessary to open it.
- Insert Batteries: Insert 2 AAA batteries, ensuring correct polarity (+/-).
- Close Battery Compartment: Replace the battery cover securely.

Image 3.1: The remote control with its battery compartment open, illustrating the placement for 1.5V AAA batteries.
3.3 Frequency Linking (Pairing)
The first time you use the control box or after replacing the car's battery, you need to link the remote control to the receiver.
- Turn off the car: Ensure the power switch on the electric riding car is in the OFF position.
- Prepare Remote: Remove the battery cover on the remote control and insert 2 AAA batteries. The three LED indicators on the remote will flash.
- Turn on the car: Turn on the power switch on the electric riding car.
- Observe LEDs: When the LED indicators on the remote control stop flashing and two of them remain ON, the pairing process is successful.
- No Re-pairing Needed: Once matching is made, there is no need to re-code again unless the car's battery is replaced.

Image 3.2: Wiring diagram for the 12V lead-acid battery connection to the control box and the AAA battery placement for the remote control.
4. Operating Instructions
4.1 Remote Control Functions
The 2.4G remote control allows for full control of the electric riding car's movement.

Image 4.1: Front view of the 2.4G remote control, showing the directional and function buttons.
4.2 Sleep Mode and Wake-up
If the remote control is not used for an extended period, it will enter a sleep mode to conserve battery power. The LED indicators will turn off.
- To wake up: Press any button on the remote control. The LED indicators will illuminate, and the remote can be used normally.
5. Maintenance
Proper maintenance ensures the longevity and safe operation of your control box and remote.
- Keep Clean: Regularly wipe the control box and remote control with a dry, soft cloth to remove dust and dirt. Avoid using harsh chemicals or liquids.
- Check Connections: Periodically inspect all wiring connections to the control box to ensure they are secure and free from corrosion.
- Battery Replacement: Replace the AAA batteries in the remote control when the LED indicators become dim or the remote's response is sluggish. Always use fresh batteries of the correct type.
- Storage: When not in use for extended periods, store the control box and remote in a dry, cool place. Remove batteries from the remote control if storing for several months.
6. Troubleshooting
If you encounter issues with your weelye BDM-CSG4A control box, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| Car does not move (no forward/backward) |
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| Remote control unresponsive |
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| Intermittent control |
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If troubleshooting steps do not resolve the issue, consider contacting the seller or a qualified technician for further assistance.
7. Specifications
| Feature | Specification |
|---|---|
| Model | BDM-CSG4A |
| Brand | weelye |
| Voltage | 12V |
| Working Current | 25A MAX |
| Connectivity | 2.4G Wireless (for remote control) |
| Socket Type | 7-pin red Four-sided socket |
| Special Features | Slow start function integrated |
| Material | Plastic |
| Item Dimensions (L x W x H) | 5.18 x 3 x 3 inches (approximate) |
| Remote Control Battery | 2 x AAA 1.5V batteries (not included) |
8. Warranty and Support
For warranty information and customer support regarding your weelye BDM-CSG4A control box, please refer to the purchase documentation or contact the original seller directly. Keep your proof of purchase for any warranty claims.
For additional assistance or inquiries, you may visit the official weelye store on Amazon: weelye Store