This service will scan your ECU and clear hard codes from memory to see if they return on my Aquatrax engine simulator. The scan fee is $180 compared to buying a new or used ecu. This method will fully exercise the ecu and see if other codes are appearing and save you the cost of a new ecu. This will let you where to troubleshoot as the ECU may be good and sensors/wiring on the ski is bad. Some mechanic shops are bad at servicing ECU/Electrical issues.Diagnostic time is around 4-7 days. On certain ECU's I offer a repair service. If the actual circuit is bad I can attempt to fix it but there is no guarantee it would work. Trying to fix the ECU can have 3 results. 1. Circuit is fixed and ECU works2. Circuit is not fixed and ECU is back to the original state3. Circuit is not fixed and ECU does not start ski anymoreIf there is success the fee will vary depending on the complexity. If there is no success you are only responsible for the Diagnostic fee.After purchase, you will receive a second email with mailing instructions. You are responsible for the shipping charges to us.Most USA orders are return shipped within 7 days NO EXCEPTIONS  International orders may take longer, possibly 1-2 weeks to ship back. A quote will be provided for International return shipping There are NO returns, refunds, or exchanges on ECU Diagnostic services.Please contact us with any questions prior to ordering.