The Thexton Relay Bypass Kit, No. 927, allows you to bypass relays to test and activate components. Also, tests circuitry to determine faulty wiring. The extended 5 foot cord allows the technician to test the component visually or audibly when activated. Custom molded relays dissolve the need to determine which circuit is the power, ground, or signal. 4 different tools cover the majority of foreign & domestic relay applications.