How to check ABS speed sensor

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. There would be no reason to expect a new sensor - provided it is of quality and a name brand, preferably GM brand - would be faulty. There is no way to "bench test" a sensor like this. Are you absolutely certain the sensor you installed is faulty? What testing has been performed? Seek help locally perhaps -- https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.