Program the DSM module using RLink with Witech 2.0 software.
Pre-programming Preparation:
I. Preliminary Requirements
Prepare a computer pre-installed with OE software and ensure it has sufficient power. Tip: It is recommended to keep the PC connected to a power source throughout the programming process to avoid interruptions caused by power loss.
The computer must be connected to a wired network with a download speed of ≥5M/s. Some ECU data files are large; high network latency or interruptions will directly cause programming failure.
Connect the vehicle to a dedicated stable voltage power supply (battery stabilizer) to maintain voltage between 13.2V and 14.5V. Voltage fluctuations can cause programming failures, so stable power supply is essential.
Park the vehicle on level ground to prevent the risk of rolling. An inclined surface may lead to accidents during the programming process.
II. Pre-programming Checklist
5. Verify that the ECU power supply and ground connections are normal, and confirm that the ECU information matches the current vehicle's ECU exactly.
6. If programming a remanufactured ECU, strictly follow the manufacturer's operating guidelines. Some remanufactured ECUs (e.g., immobilizer-related) may not pass the factory OEM software verification. Second-hand ECUs may need to be wiped/cleared of data before use; otherwise, programming will fail.
7. It is recommended to prioritize using a brand-new ECU for programming, and a stable voltage power supply must be connected during the process.
III. Programming Procedure Standards
8. During programming, carefully read the operation prompts within the OEM software and strictly follow the steps. Do not perform unauthorized operations.
IV. Troubleshooting Programming Failures
9. If programming fails, first check the vehicle status and the connection of the diagnostic device.
10. If the status is normal, it is recommended to let the vehicle sleep for 30 minutes before retrying. Sleeping can clear cached error data and improve the success rate of the retry.
11. If the status is abnormal (e.g., the display or instrument cluster is off), do not turn off the ignition. Check if the device and computer are connected properly, and then proceed directly to reprogramming.
Note: Please try to use a brand-new ECU for programming, and always connect a stable voltage power supply during the process.
Operation Steps:
1.Take out the RLink device and connect it to the vehicle's OBD port and the computer's USB port respectively. Ensure the connections are secure.
2.Once the device is connected, launch the RLink Platform software. Confirm the vehicle connection status via the platform's connection info, and verify if the drivers are installed.
Note: Before programming with FDRS software, it is recommended to log in to your RLink Platform account to check for any software or firmware updates. If updates are available, install them before proceeding with vehicle programming.
3.Confirm that the device and vehicle connections are normal, then double-click to open the Witech 2.0 software.
Note: The Witech 2.0 software requires PC binding for first-time use (refer to the Chrysler software installation and registration documentation).
4.Click Connect, select Non Verified J2534 Device as shown in the diagram, and then choose TOPDON-RLink or AA RLink mode.
Note: If the Device option appears greyed out, it indicates that the software needs an update, was not installed correctly, or the PC is not bound. This issue is unrelated to the hardware device itself.
5.Log in with your subscribed Chrysler official website account.
Note: The region of the subscribed account must match the IP region of the computer network being used; otherwise, it will not function properly.
6.After logging in, click wiTECH 2 AM PROD to identify the vehicle.
7.Once the vehicle is automatically identified successfully, it will enter the topology interface automatically without needing to click anything.
8.Click DSM to enter the ECU information page.
Note: Here you can view information for all vehicle modules, clear all DTCs, or select a single ECU to view detailed module information, perform programming, or clear specific ECU fault codes.
9.Select Flash. On the Flash page, click the "DSM Info 68433499AH" option to enter programming mode.
Note: It is recommended to clear fault codes (DTCs) before programming.
10.Check the policy information box, select a reason, provide a description, and click Flash ECU.
Note: Before starting, reconfirm that the ignition is on, the battery charger is functioning normally, and warning signs are placed. Click OK after confirmation.
11.Wait for the programming to finish. If the progress bar remains unchanged for a long time, do not perform any operations. This is because some ECU data files are large, and downloading/writing data takes time. If any issues occur during programming, an error message will be displayed.
12.Once programming is complete, click View DTCs to continue.
13.After programming, click Clear All DTCs to delete fault codes.
Note: If Transport Mode is present, it must also be cleared. Some ECUs require sensor data matching after programming.
14.After clearing fault codes, perform a road test.
Note: A road test is mandatory after programming to verify that everything is functioning normally.
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