EVA Software Cartridge
The J 38792-A uses a software cartridge, the J 38792-60, which provides various information to the J 38792-A . See Special Tools and Equipment . The J 38792-60 provides the J 38792-A with an additional feature which can be selected and utilized to assist in diagnosing vibration concerns. See Special Tools and Equipment .
This support-feature is available through the J 38792-A Auto-Mode function. See Special Tools and Equipment . When selected, the J 38792-A will prompt the user to select which one of 2 vehicle systems (vehicle speed or engine speed), is the SUSPECTED source of the vibration concern. See Special Tools and Equipment . Using the inputted vehicle data parameters along with the most dominate vibration frequency obtained, it will identify a SUSPECTED source of the vibration concern, such as first-order tire and wheel. This can be a useful feature when used in conjunction with the Vibration Analysis Diagnostic Tables, to confirm results obtained through the diagnostic process.