Component Tests and General Diagnostics
1. Remove rear bumper facing.
2. Detach grommet from vehicle.
3. Disconnect coupler.
4. Connect BI/W terminal of coupler to a light bulb (12 V, 3.4W).
5. Turn ignition switch ON.
Make sure that bulb is lighted with meter pointer fluctuating several seconds thereafter. If meter is faulty, replace.