Wiring Harness Operational Test
Unplug sending unit connector. Connect a 12-volt, 3.4-watt bulb in line with sending unit lead and ground. Turn ignition switch on. Bulb should start flashing and gauge pointer should deflect.
Unplug sending unit connector. Connect a 12-volt, 3.4-watt bulb in line with sending unit lead and ground. Turn ignition switch on. Bulb should start flashing and gauge pointer should deflect.