PARANNIC OBD2 Diagnostic Scanner ELM327 V1.4 USB ELM 327 Instruction Manual

1. Pengenalan

The PARANNIC OBD2 Diagnostic Scanner ELM327 V1.4 USB ELM 327 is a car code reader and diagnostic scan tool designed to interface with your vehicle's On-Board Diagnostics II (OBD-II) system. It features a PIC18F25K80 chip and a USB interface for reliable connection to Windows-based computers. This tool allows users to read and clear diagnostic trouble codes, monitor various sensor data, and access advanced vehicle features.

Ciri-ciri Utama:

• PIC18F25K80 Chip: Ensures reliable performance and compatibility.
• USB ELM 327 Interface: Provides a stable connection to Windows 7, Windows 8, and other Windows operating systems. Drivers can be updated online from the official webtapak.
• Fungsi Diagnostik Komprehensif: Reads and clears generic and manufacturer-specific diagnostic trouble codes (DTCs), turns off the "Check Engine" light, and displays current sensor data.
• Data Sensor Langsung: Monitors Engine RPM, Calculated Load Value, Coolant Temperature, Fuel System Status, Vehicle Speed, Short Term Fuel Trim, Long Term Fuel Trim, Intake Manifold Pressure, Timing Advance, Intake Air Temperature, Air Flow Rate, Absolute Throttle Position, Oxygen sensor voltages/associated short term fuel trims, Fuel System status, Fuel Pressure, and many other parameters.
• Keserasian FORScan: Supports Ford, Mazda, Lincoln, and Mercury vehicles, allowing access to a comprehensive list of modifications and features such as Global Window, Bambi Mod, Secure idle, Perpendicular Park, Trailer Brake Controller, disabled Double Horn Honk, Disabled Door Ajar Chime, Reverse Tilt Mirrors, and Tire Size Correction.

2. Arahan Persediaan

Follow these steps to set up your PARANNIC OBD2 Diagnostic Scanner for use with your Windows computer and vehicle.

2.1. Pemacu dan Pemasangan Perisian

1. Muat Turun Pemacu: Obtain the necessary USB drivers (e.g., CH340) from the official website or the provided instructions.
2. Pasang Pemacu: Install the drivers on your Windows computer (Windows 7, Windows 8, or later) as an administrator.
3. Download FORScan Software: Download the FORScan software from the official FORScan webtapak (www.forscan.org) or other compatible diagnostic software.
4. Install FORScan: Install the FORScan application on your computer.
5. Configure COM Port Settings: Access Device Manager on your Windows computer. Locate the COM port assigned to the USB Serial Port. Right-click, go to Properties, then Port Settings, and click Advanced. Reduce the Transmit Buffer to a low value (e.g., 2 milliseconds) for optimal performance.
6. Configure FORScan Connection: Open FORScan. Go to Settings > Connection. Set Connection Type to 'COM' and select the correct COM port. Ensure 'Auto-increase' is checked for enhanced performance.
7. Obtain FORScan License: For advanced coding and programming functions, you may need a license. A free license can often be obtained from the FORScan official webtapak.

2.2. Menyambung ke Kenderaan

1. Cari Port OBD-II: The OBD-II port is typically located under the dashboard on the driver's side.
2. Sambung Pengimbas: Plug the USB ELM 327 scanner into your vehicle's OBD-II port. The scanner's indicator lights should illuminate.
3. Sambung ke Komputer: Plug the USB cable from the scanner into your laptop's USB port.
4. Hidupkan Pencucuhan: Turn your vehicle's ignition to the 'ON' position (engine off) or start the engine, as required by the diagnostic software.
5. Set CAN Switch: Ensure the HS/MS CAN toggle switch on the scanner is set to the 'HS' position before initiating connection with the software.

Figure 1: PARANNIC ELM327 USB OBD2 Diagnostic Scanner connected via USB.

3. Arahan Operasi

Once the scanner is connected and the software is running, you can perform various diagnostic tasks.

3.1. Membaca Kod Masalah Diagnostik (DTC)

1. Sambung ke Kenderaan: Ensure the scanner is properly connected to the vehicle and computer, and the ignition is on.
2. Pelancaran Perisian: Open your diagnostic software (e.g., FORScan).
3. Wujudkan Sambungan: Click the 'Connect' button in the software. The software will attempt to establish communication with the vehicle.
4. Baca DTC: Navigate to the 'DTC' or 'Trouble Codes' section of the software. The scanner will read and display any stored diagnostic trouble codes, along with their descriptions.

3.2. Clearing Trouble Codes

1. Read DTCs First: It is recommended to read and note down all DTCs before clearing them.
2. Clear Codes Option: In the diagnostic software, select the option to 'Clear DTCs' or 'Erase Trouble Codes'.
3. Confirm Action: Follow any on-screen prompts to confirm the clearing process. This will turn off the 'Check Engine' light.

3.3. Viewing Live Sensor Data

1. Access Live Data: Navigate to the 'Live Data' or 'Data Stream' section in your software.
2. Select PIDs: Choose the specific Parameter IDs (PIDs) you wish to monitor (e.g., Engine RPM, Coolant Temperature, Vehicle Speed).
3. Mulakan Pemantauan: Click the 'Play' or 'Start' button to begin real-time monitoring of the selected sensor data.

3.4. Switching CAN Modes (HS-CAN / MS-CAN)

The scanner features a physical toggle switch to alternate between High-Speed CAN (HS-CAN) and Medium-Speed CAN (MS-CAN) modes. This is crucial for accessing different modules within your vehicle, especially for Ford, Mazda, Lincoln, and Mercury models.

1. Sambungan Awal: Start with the switch in the 'HS' position for initial vehicle connection and module scanning.
2. Software Prompt: If the software requires access to MS-CAN modules (e.g., for specific PIDs or coding functions), it will prompt you to switch the toggle.
3. Togol Suis: Physically move the switch on the scanner from 'HS' to 'MS' (or vice-versa) as instructed by the software.
4. Confirm in Software: Click 'OK' or 'Continue' in the software after changing the switch position. The software will then attempt to read modules or data from the newly selected CAN bus.

Figure 2: PARANNIC ELM327 USB OBD2 Diagnostic Scanner plugged into the vehicle's OBD-II port.

4. Penyelenggaraan

• Storan: Simpan pengimbas di tempat yang sejuk dan kering, jauh daripada cahaya matahari langsung dan suhu yang melampau.
• Pembersihan: Gunakan kain lembut dan kering untuk membersihkan peranti. Elakkan menggunakan bahan kimia yang keras atau pembersih yang kasar.
• Penjagaan Kabel: Do not pull on the cable to disconnect the scanner. Always grasp the connector firmly.
• Kemas Kini Perisian: Periksa pegawai secara berkala website for driver and software updates to ensure optimal performance and compatibility with newer vehicles.

5. Penyelesaian masalah

5.1. Unable to Connect to Vehicle

• Semak Sambungan: Ensure the scanner is securely plugged into the OBD-II port and the USB cable is firmly connected to the computer.
• Status Pencucuhan: Verify that the vehicle's ignition is in the 'ON' position or the engine is running.
• CAN Switch Position: Confirm the HS/MS CAN toggle switch on the scanner is in the correct position (HS or MS) as required by the software or vehicle module.
• Pemasangan Pemandu: Ensure all necessary USB drivers are correctly installed on your computer. Check Device Manager for any driver issues.
• Tetapan Perisian: Verify that the correct COM port and connection type are selected in your diagnostic software settings.

5.2. Incorrect or No Data Displayed

• Pemilihan PID: Ensure the correct PIDs are selected for live data streaming.
• Mod BOLEH: If monitoring specific modules, ensure the HS/MS CAN switch is in the appropriate position.
• Keserasian Perisian: Verify that your diagnostic software is compatible with your vehicle's make and model.

6. Spesifikasi

Gambar 3: Dalaman view of the ELM327 USB scanner highlighting the PIC18F25K80 chip.

Figure 4: Another internal view of the ELM327 USB scanner, confirming the 25K80 chip.

7. Sokongan

For technical assistance, driver updates, or software information, please refer to the official product website or the FORScan community forums. The manufacturer is committed to customer satisfaction.