Today we will walk you through 14th-generation Nissan Sylphy 2023 odometer correction using CGDI CG100X programmer. This model features a semi-digital instrument cluster, with an analog tachometer on the left and an LCD screen on the right."
Procedure:
Step 1: Record Original Mileage
Always record the original mileage before disassembly. We recommend taking a photo of the dashboard for reference.
- Current displayed mileage: 142,236 km (as shown in the image, powered via the CG100X software’s wiring diagram).
Step 2: Disassemble the Dashboard
1). Remove the 11 rear shell screws securing the instrument cluster.
2). Carefully detach the transparent front cover—avoid excessive force to prevent breaking clips or scratching the panel.
3). Extract the needles—this requires precision.
- Important: The needles are spring-loaded (hairspring mechanism). Pull them straight up; DO NOT twist, as this may damage the motor.
Step 3: Access the Mainboard
- Once opened, locate the main control chip: CPU S6J329C.
Step 4: Connect CG100X for Mileage Adjustment
- Open the CG100X software and select the correct model Aisa- Nissan- Sylphy- 2019- S6J329 Gen14.
- Follow the software’s wiring diagram to solder the connections.
- Tool used: CG100X PRO V2 Adapter.
- Note: The software may instruct temporary removal of two capacitors—reinstall them after correction.
- Don't forget to connect DC 12V power supply to CG100X.
3. After verifying the connections, click "Start Operation".
Step 5: Correct mileage.
The process is user-friendly and wizard-guided:
Reading chip data and save backup.
Calculate mileage on server. The operation requires network connection.
The CG100X software has built-in algorithm for this processor. It will automatically analyze mileage data.
Verify mileage data. If the detected mileage is invalid or has a large error, cancel the operation and contact CGDI technical support.
If the data is valid, proceed to enter the new mileage value and confirm.
- Requirement: The device must be within its service period and the computer must be online (server verification needed for calculation).
- Do not interrupt the data reading/writing process to avoid corruption.
Writing mileage.
Odometer correction successfully.
Step 6: Finalization
After successful writing, desolder the wires and clean the board. Don't forget to resolder two capacitors back to the board.
Reassemble the dashboard and power it on for verification.
- Result: The displayed mileage will exactly match the value entered in the software—no deviation.
