1. Okwu mmalite
The udiag CR700 OBD2 Scanner is a compact, portable, and universal diagnostic tool designed for both DIY enthusiasts and professional car owners. It provides a convenient and efficient way to check your vehicle's engine system, read and erase fault codes, and access critical vehicle information. This manual will guide you through the setup, operation, and maintenance of your CR700 device.
2. Ngwaahịa gafereview

Figure 2.1: The udiag CR700 OBD2 Scanner, a compact and ergonomic diagnostic tool.
The CR700 features an ergonomic grip handle, a clear 2.4-inch TFT color screen, and intuitive button controls. It is designed for ease of use and portability, fitting comfortably in your palm.

Ọgụgụ 2.2: Zuru ezu view of the CR700's components, including the LCD display, navigation buttons, and OBD II connection line.
Ngwaọrụ Ngwa:
- Ngosipụta LCD: 2.4-inch TFT color screen for clear information display.
- OBD II Connection Line: Detachable cable for connecting to the vehicle's DLC.
- UP/DOWN Keys: For navigating through menu options.
- Igodo ESC: To exit the current screen or return to the previous menu.
- Igodo OK: To confirm a selection or enter a menu.
- I/M Key: Nweta ngwa ngwa na ọnọdụ Njikere I/M.
3. Nhazi
The udiag CR700 is a plug-and-play device, requiring no batteries as it is powered directly via the detachable OBD II cable from your vehicle. Follow these simple steps to set up your device:
- Locate your vehicle's Diagnostic Link Connector (DLC). This is typically found under the dashboard on the driver's side.
- Ensure your vehicle's ignition is in the 'ON' position (engine can be off or running, depending on the diagnostic task).
- Connect the OBD II cable from the CR700 to the vehicle's DLC.
- The CR700 will automatically power on and begin communicating with your vehicle.
Video 3.1: This video illustrates the simple plug-and-play setup of the udiag CR700. Connect the OBD II cable to your vehicle's diagnostic link connector (DLC), typically located under the dashboard on the driver's side. The device powers on automatically upon connection.
4. Ntuziaka ọrụ
The CR700 offers various diagnostic functions accessible through its intuitive menu system.
Ọrụ ndị dị mkpa:
- Reads & Erases Trouble Codes: Quickly identify and clear Diagnostic Trouble Codes (DTCs) that trigger the Check Engine Light (MIL).
- Reads Live Data Stream: View real-time data from your vehicle's engine sensors, useful for monitoring performance and diagnosing intermittent faults.
- Displays I/M Readiness Status: Check the status of emission-related monitors to ensure your vehicle is ready for an emissions test.
- Detects Freeze Frame Information: Capture a snapshot of sensor values at the moment a DTC occurred, providing valuable context for diagnosis.
- Retrieves Vehicle Information: Access Vehicle Identification Number (VIN), Calibration Identification (CIN), and Calibration Verification Number (CVN).
- Nkebi nke: Switch between English and Metric units for data display.
Na-agagharị na menu:
Jiri ihe UP na N'ala arrow keys to scroll through menu options. Press the OK button to select an option or enter a sub-menu. The ESC button allows you to go back to the previous screen or exit a function.

Figure 4.1: Screenshots of the CR700's diagnostic menu, showing options for reading codes, viewing live data, and accessing vehicle information.
Video 4.2: This video guides you through navigating the CR700's menu using the directional buttons. It shows how to select diagnostic functions like 'Read Codes' and 'Data Stream' to view real-time engine sensor data.
5. Nlekọta
To ensure the longevity and optimal performance of your udiag CR700, please follow these maintenance guidelines:
- Debe ngwaọrụ ahụ ọcha ma ghara ịta uzuzu na ihe ruru unyi. Jiri ákwà dị nro ma kpọọ nkụ hichaa ya.
- Zere ikpughe ngwaọrụ ahụ na oke okpomọkụ, ìhè anyanwụ kpọmkwem, ma ọ bụ oke iru mmiri.
- Chekwaa ngwaọrụ ahụ n'ebe dị jụụ, kpọrọ nkụ mgbe ọ naghị eji ya.
- The CR700 offers lifetime free software and firmware updates. Regularly check the manufacturer's website for available updates to ensure compatibility and access to new features.
6. Nchọpụta nsogbu
If you encounter any issues while using your udiag CR700, refer to the table below for common problems and their solutions:
| Nsogbu | Ihe kpatara/ Ngwọta nwere ike ime |
|---|---|
| Ngwaọrụ anaghị agbanwu ọkụ. | Ensure the OBD II cable is securely connected to the vehicle's DLC. Verify the vehicle's ignition is in the 'ON' position. Check the vehicle's battery voltage (must be 8-18V). |
| "No Code Found!" message displayed. | This indicates that there are currently no active Diagnostic Trouble Codes (DTCs) stored in the vehicle's ECU. If you suspect an issue, monitor live data or check for pending codes. |
| Screen is dim or difficult to read. | Adjust the contrast setting in the 'System Setup' menu. |
| Njehie nkwukọrịta na ụgbọala. | Ensure the ignition is on. Check the OBD II cable connection. Verify the vehicle supports standard OBD II protocols. Try connecting to a different OBD II compliant vehicle if possible. |
If the problem persists after trying the suggested solutions, please contact customer support for further assistance.
7. Nka na ụzụ nkọwa
- Ngosipụta: 2.4’’ TFT color display
- Okpomọkụ arụ ọrụ: 0 ruo 60°C (32 ruo 140°F)
- Okpomọkụ nchekwa: -20 ruo 70°C (-4 ruo 158°F)
- Ịnye ọkụ: 8-18 V vehicle power
- Akụkụ (L * W * H): 125*80*24mm (4.92 x 3.15 x 0.94 inches)
- Arọ: 0.35kg (8.8 ounces)
- Usoro ogbugba akwadoro: J1859-PWM, J1850-VPW, ISO9141, KWP2000 (ISO 14230), and CAN (Control Area Network ISO 11898)
8. Akwụkwọ ikike na nkwado
udiag is committed to providing high-quality products and excellent customer service. For any issues, technical support, or inquiries regarding your CR700 OBD2 Scanner, please contact udiag customer support directly. Our team is ready to provide the best service and resolve any problems as quickly as possible.
Thank you for choosing udiag. We appreciate your business and look forward to assisting you.





