VDO Programmable Speedometer

1. Introduction

This manual provides essential information for the installation, operation, and maintenance of your VDO Programmable Speedometer. Designed for robust performance in bus and truck applications, this genuine quality speed meter gauge ensures accurate speed information display. Please read this manual thoroughly before installation and use to ensure proper function and safety.

2. Specifications

3. Setup and Installation

Installation of this speedometer requires basic electrical knowledge and tools. It is recommended that installation be performed by a qualified technician.

3.1 Components Overview

3.2 General Installation Steps

1. Safety First: Disconnect the vehicle's battery before beginning any electrical work to prevent short circuits or damage.
2. Mounting: Choose a suitable location on the dashboard or instrument panel. Ensure the mounting hole matches the speedometer's diameter. Secure the speedometer using the provided mounting ring (refer to Figure 3).
3. Wiring: Connect the speedometer to the vehicle's electrical system. Refer to the vehicle's wiring diagram and the speedometer's connectors (refer to Figure 2). Typical connections include:
   • Positive power supply (12V or 24V, depending on vehicle system)
   • Ground connection
   • Speed signal input (from vehicle's speed sensor)
   • Illumination wire (for backlight, if applicable)
   Ensure all connections are secure and properly insulated.
4. Reconnect Battery: Once all connections are made and secured, reconnect the vehicle's battery.
5. Initial Test: Turn on the vehicle's ignition and check if the speedometer powers on and displays information.

4. Operating Instructions

The VDO Programmable Speedometer is designed for straightforward operation, primarily displaying vehicle speed. It features a single button for basic interaction, typically for calibration or cycling through display modes.

4.1 Basic Operation

• Power On: The speedometer will power on automatically with the vehicle's ignition.
• Speed Display: The primary function is to display the vehicle's speed via the analog needle and potentially a digital readout on the LCD screen.
• Button Functionality: The single button on the front of the speedometer (refer to Figure 1) is typically used for:
  • Short press: Cycle through different display modes (e.g., total mileage, trip mileage, clock).
  • Long press: Enter calibration mode or reset trip mileage (refer to specific programming instructions if provided separately by VDO or vehicle manufacturer).

For detailed programming or calibration instructions, please consult the specific VDO documentation for your vehicle model or contact technical support.

5. Maintenance

The VDO Programmable Speedometer is a durable and low-maintenance component. Follow these general guidelines to ensure its longevity:

• Cleaning: Use a soft, damp cloth to clean the display and housing. Avoid abrasive cleaners or solvents that could damage the surface.
• Inspection: Periodically check the wiring connections for any signs of corrosion or looseness. Ensure the mounting is secure.
• Environmental Conditions: While designed for vehicle environments, avoid exposing the unit to extreme temperatures or excessive moisture beyond normal operating conditions.

6. Troubleshooting

If you encounter issues with your VDO Speedometer, consider the following basic troubleshooting steps:

• No Display/Power:
  • Check vehicle's fuse box for blown fuses related to the instrument cluster or accessories.
  • Verify power and ground connections to the speedometer are secure and receiving correct voltage (12V/24V).
  • Ensure the vehicle battery is properly connected and charged.
• Incorrect Speed Reading:
  • Check the speed sensor connection to the speedometer and ensure the sensor itself is functioning correctly.
  • Verify that the speedometer has been properly calibrated for your vehicle's tire size and gear ratio. Refer to programming instructions.
• Intermittent Operation:
  • Inspect all wiring for loose connections, frayed wires, or corrosion.
  • Ensure the speedometer is securely mounted and not experiencing excessive vibration.

If problems persist after performing these checks, contact technical support for further assistance.

7. Warranty and Support

7.1 Warranty Information

This VDO Programmable Speedometer comes with a 12-month warranty from the date of purchase, covering manufacturing defects. The warranty does not cover damage caused by improper installation, misuse, accidents, or unauthorized modifications.

7.2 Technical Support

For technical assistance, warranty claims, or any questions regarding your speedometer, please contact Sukorun customer service:

• WhatsApp: +86 17352878650
• Email: alva@douyasale.com

When contacting support, please have your product model number (A2C3832910001 or A2C3832910013) and purchase details ready.