Bench testing a starter is a process of testing the starter motor outside of the vehicle to determine if it is functioning properly. This is done by connecting the starter to a power source and then engaging the starter motor. If the starter motor turns over, then it is likely functioning properly. However, if the starter motor does not turn over, then it may be necessary to troubleshoot the starter motor or the electrical system.
Bench testing a starter is important because it can help to identify problems with the starter motor before it is installed in the vehicle. This can save time and money by preventing the need to remove and reinstall the starter motor if it is not functioning properly. Additionally, bench testing a starter can help to identify problems with the electrical system that may be causing the starter motor to not function properly.