Introduction
The Kashimura KD-258 is a compact car air pressure sensor designed for DC12V vehicles. This system monitors tire pressure, temperature, and detects air leaks, providing timely warnings to the driver. It also includes a battery runout warning for the sensors. This manual provides essential information for the safe and effective use of your KD-258 system.
Safety Information
- Read all instructions carefully before installation and use.
- Ensure the system is installed by a qualified professional if you are unsure about any steps.
- Do not attempt to repair or modify the device. Refer to authorized service personnel.
- Keep the device away from water and extreme temperatures.
- Always check tire pressure manually with a reliable gauge periodically, as this device is an auxiliary warning system.
Package Contents
Verify that all items are present in the package:
- Main Display Unit
- External Tire Pressure Sensors (4 units)
- Power Cable (for DC12V cigarette lighter socket)
- Anti-theft Nuts and Wrench
- Instruction Manual
Setup
1. Sensor Installation
Install the external sensors onto the tire valve stems. Ensure each sensor is tightened securely to prevent air leakage. Use the provided anti-theft nuts and wrench to secure the sensors in place.
Image: The Kashimura KD-258 main display unit and four external tire pressure sensors. The sensors are small, cylindrical devices designed to screw onto tire valve stems.
2. Main Unit Installation
- Plug the power cable into the main display unit.
- Insert the other end of the power cable into your vehicle's DC12V cigarette lighter socket.
- Mount the main unit on your dashboard using the provided adhesive pad or bracket, ensuring it does not obstruct your view or interfere with driving controls.
3. Initial Pairing (Automatic)
Once the main unit is powered on and the sensors are installed, the system will automatically attempt to pair with the sensors. Drive the vehicle for a short period (e.g., 5-10 minutes) to allow the sensors to transmit data to the main unit. The display should show tire pressure and temperature readings for each tire.
Operating Instructions
Display Interpretation
The main display unit shows real-time tire pressure and temperature for each of the four tires. The display typically cycles through the tire data or shows all four simultaneously, depending on the display mode. Refer to the on-screen indicators for specific tire positions (e.g., Front Left, Front Right, Rear Left, Rear Right).
- Pressure Readings: Displayed in PSI or Bar (check settings for unit selection).
- Temperature Readings: Displayed in °C or °F (check settings for unit selection).
- Battery Indicator: An icon or specific segment on the display will indicate the battery status of each sensor.
Warning Indicators
The KD-258 system provides visual and audible warnings for various conditions:
- High Air Pressure Warning: Activates if tire pressure exceeds a preset upper limit.
- Low Air Pressure Warning: Activates if tire pressure drops below a preset lower limit.
- Air Leak Warning: Triggers if a rapid pressure drop is detected, indicating a potential puncture or leak.
- High Temperature Warning: Alerts if tire temperature exceeds a safe operating limit.
- Sensor Battery Runout Warning: Indicates when a sensor's battery is low and requires replacement.
When a warning occurs, the display will typically highlight the affected tire and emit an audible alert. Address any warnings promptly and safely.
Adjusting Settings
The main unit may have buttons to access settings such as unit selection (PSI/Bar, °C/°F) and adjustment of warning thresholds. Consult the specific button functions on your device for detailed instructions on how to navigate and change these settings.
Maintenance
Sensor Battery Replacement
When a sensor battery runout warning appears, the sensor battery needs to be replaced. Carefully unscrew the sensor from the valve stem. Use a small tool to open the sensor casing and replace the old battery with a new, compatible coin cell battery (e.g., CR1632). Ensure correct polarity. Reassemble the sensor and reinstall it on the tire valve stem, tightening it securely.
Cleaning
Wipe the main display unit and sensors with a soft, dry cloth. Do not use abrasive cleaners or solvents, as these can damage the device's surface or internal components.
General Care
Periodically check the tightness of the sensors on the valve stems. Ensure the main unit's power connection is secure. If the vehicle is stored for an extended period, consider disconnecting the main unit to conserve vehicle battery power.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display shows no readings or '---' | Sensors not paired; Main unit not powered; Sensor battery low/dead; Signal interference. |
|
| Inaccurate pressure/temperature readings | Sensor not properly installed; Sensor faulty; External factors (e.g., extreme weather). |
|
| Warning constantly active | Actual tire issue; Incorrect warning thresholds set. |
|
Specifications
- Model Number: KD-258
- Power Input: DC12V (via cigarette lighter socket)
- Material: Nylon
- Item Weight: Approximately 100 g (main unit)
- Product Dimensions: 4.7 x 4.5 x 3.5 cm (main unit)
- Sensor Type: External
- Monitoring Parameters: Tire Pressure, Tire Temperature, Air Leak, Sensor Battery Status
- Warning Types: High Pressure, Low Pressure, High Temperature, Air Leak, Sensor Battery Runout
- Batteries Required: Yes (for sensors, typically coin cell type like CR1632)
Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact details provided with your purchase documentation or visit the official Kashimura website. Keep your proof of purchase for warranty claims.