Grand Wagoneer Only
- Using a 12-volt test lamp, connect one end of lamp to ground and probe Brown wire of safety switch. Turn tailgate switch to "UP" position. If lamp lights, voltage is present at switch. If lamp does not light, check feed circuit and repair as necessary.
- Probe Brown wire. Turn tailgate switch to "UP" position and close safety switch. If lamp does not light, replace switch. If lamp lights, check tailgate window motor.