1. Introduction
Product Overview
The KAWA Hardwire Kit PT01 is an essential accessory designed to enable 24-hour parking surveillance for compatible in-car devices, including KAWA D8 and D10 dash cams. This kit provides continuous power and transmits ACC signals to your main device, ensuring uninterrupted monitoring and low-voltage protection for your vehicle's battery.
The PT01 series is available with three types of interfaces: Micro USB, Mini USB, and Type-C, offering broad compatibility. The illustrations in this manual are for reference; actual product features may vary due to enhancements.

Product Functions
- Continuous Power Supply: Provides constant power to your in-car device for 24-hour parking surveillance.
- ACC Signal Transmission: Transmits ACC (Accessory) signals to the main device, allowing it to automatically switch between driving and parking surveillance modes.
- Low-Voltage Protection: Prevents over-discharging of your car battery by cutting power to the dash cam if the battery voltage drops below a safe threshold.
Supported Devices
This product is compatible with parking surveillance-supported KAWA in-car devices manufactured by KAWA ELECTRONICS Co., Ltd., including models like KAWA D8 and D10. It can also be used with other compatible in-car devices that support parking surveillance. For a detailed list of supported devices, please refer to the product's online guide or sales page.
2. Installation Guide
Important Note: It is highly recommended to seek assistance from a professional technician for installation to prevent damage to your vehicle or the product.
Step 1: Connect the Fuse Box
Select a suitable car fuse box based on the wiring path and the intended location of your main device. Ensure the chosen fuse box can accommodate the following connections:
- A regular electric fuse with an output voltage of 12V to 30V and an output current of 2.4A.
- An ACC power fuse.
Step 2: Connect the Hardwire Kit to the Fuse Box
Connect the wires of the hardwire kit to the fuse box as follows:
- VCC+ (Yellow Wire): Connect the yellow power cable to a regular electric fuse that provides an output voltage of 12V or 30V (when the ACC is off) and has a larger output current inside the fuse box.
- ACC (Red Wire): Connect the red ACC signal cable to the ACC power fuse inside the fuse box.
- GND- (Black Wire): Connect the black ground wire to the negative terminal or a suitable ground point around the fuse box.

Important Notes:
- Before installation and wiring, always turn off the car engine and disconnect power to prevent short circuits.
- The actual installation and wiring path may differ from the illustrations. Professional assistance is recommended.
Step 3: Test the Connection and ACC Signal
For Dash Cams:
- Connect the USB port of the hardwire kit to the power outlet (DC/IN) of your dash cam. Start the engine and wait for the dash cam to power on. If it doesn't, check the yellow power cable connection to the regular electric fuse.
- Turn off the engine and remove the key. Observe if the dash cam powers off or enters sleep mode. Note that some cars may delay the ACC power-off signal until the driver's door is opened or after a certain period.
- Restart the engine and verify that the dash cam automatically turns on.
For Smart Rearview Mirrors and Other Smart In-Car Devices:
- Connect the USB port of the hardwire kit to the power outlet (DC/IN) of your device. Start the engine and wait for the device to power on. If it doesn't, manually turn it on. If a "Connect to an external power source" message appears, check the yellow power cable connection.
- Navigate to Settings > Power on/off settings on your device and select ACC detection mode. Restart the device for these settings to take effect.
- Turn off the engine and remove the key. Observe if the device powers off or enters sleep mode. As with dash cams, ACC signal timing can vary by vehicle.
- Restart the engine and verify that the device automatically turns on.
If the connection or ACC signal test fails after following these steps, recheck all wiring, fuses, and ground connections. If issues persist, contact customer support.
Step 4: Cable Management
Route the hardwire kit cable neatly to the location of your main device. If the cable is too long, coil and secure the excess, but do not cut it. Cutting the hardwire kit can impair its functionality and affect power and ACC signal transmission.

3. Operation
Enabling Parking Surveillance
The parking surveillance function is typically disabled by default. To activate it, you must enable it within the settings of your main in-car device (e.g., dash cam). Please refer to the user manual of your specific main device for detailed instructions on how to configure these settings.
For a comprehensive user guide and connection video, you may refer to the official PDF manual available at: KAWA Hardwire Kit PT01 User Manual (PDF).
4. Maintenance
The KAWA Hardwire Kit PT01 requires minimal maintenance. Ensure all connections remain secure and free from corrosion. Periodically check the cable for any signs of wear or damage. Keep the device clean and dry. Do not attempt to open or repair the power conversion box, as this will void the warranty.
5. Troubleshooting (FAQ)
What situations might arise if the hardwire is connected incorrectly?
- 1. VCC+ and ACC are reversed:
- When the vehicle is turned off, the device will immediately shut down, and the parking monitoring function will not work.
- 2. Both VCC+ and ACC are connected to VCC+:
- If both are connected to the VCC+ constant power line (which supplies power even when the vehicle is off), the device will remain on regardless of whether the vehicle is off or on, potentially draining the battery.
- 3. Both VCC+ and ACC are connected to ACC:
- If both are connected to the ACC line (which supplies power when the vehicle is on and cuts power when the vehicle is off), the device will power on when the vehicle is started. When the vehicle is off, the device will automatically shut down, and the parking monitoring function will not work.
- 4. GND- wire is not connected:
- If the GND- (ground) wire is not connected, even if other wires are correctly connected, the device may not power on or work properly.
6. Specifications
| Feature | Specification |
|---|---|
| Product Model | PT01 |
| Input Voltage | DC12-30V |
| Output Voltage | 5 V |
| Output Current | 2.4 A |
| Low Voltage Protection (Small Cars) | 11.8V |
| Low Voltage Protection (Big Cars) | 23.6V |
| Working Temperature | -20°C~70°C (28°F~158°F) |
| Storage Temperature | -30°C~85°C (-22°F~185°F) |
Packing List
- Hardwire Kit × 1
- User Manual × 1
7. User Tips
- Cable Length: The wiring cord length is 3.4 meters (approximately 11.15 feet), providing ample length for routing within most vehicles.
8. Warranty and Support
KAWA products typically come with a 1-year repair warranty. For technical support, warranty claims, or any product-related inquiries, please contact KAWA Official Customer Service.

Manufacturer: KAWA ELECTRONICS COMPANY LIMITED
Email: support@kawa-in.com
Web: www.kawa-in.com
Address: FLAT A 21/F CHEUNG LEE IND BLDG 9 CHEUNG LEE ST CHAI WAN HONG KONG
9. Important Notes & Precautions
- Always ask a professional technician to perform the installation. The manufacturer is not liable for any short-circuiting of the car power supply, damage to the car battery, or interior damage due to improper installation.
- The manufacturer is not liable for any losses resulting from the installation of the product unless they are caused by product quality issues.
- The performance of this product is affected by the reliability of the car power source, car battery, and the main device. The manufacturer is not liable for any losses from the malfunction of this product unless it is caused by product quality issues.
- Some cars may not detect changes in ACC signals when the engine is turned on or off. In such cases, the KAWA hardwire kit may be unable to transmit ACC signals to the main device, which could render certain functions unavailable.
- Please use this product only for legal purposes.





