280ZX & 810

Place transmission in Neutral and turn ignition switch to "START" position. Warning light should come on. If not, check bulb or wiring, and repair as necessary.
Make sure floor temperature is below 176°F (80°C). Expose area around sensor. Turn ignition switch to ignition "RUN" position, warning light should go out. Heat floor area around temperature sensor. Warning light should glow when temperature is above specifications as shown in TEMPERATURE WARNING SYSTEM table.
If light does not glow, check floor temperature sensor connector for continuity. If continuity exists after heating floor, replace temperature sensor. If continuity does not exist, check wiring for damage and repair as necessary.

Turn ignition switch to ignition "RUN" position and disconnect floor temperature sensor connector. Light should stay on. If not, check the floor temperature relay for continuity.

TEMPERATURE WARNING SYSTEM

Application		Light On Above
280ZX		239°F (115°C)
810
	Sedan	275°F (135°C)
	Station Wagon	239°F (115°C)
200SX		257°F (125°C)
F10
	Hatchback	221°F (105°C)
	Sport Wagon	239°F (115°C)
Pickup		221°F (105°C)
B210
	Sedan	275°F (135°C)
	Hatchback	239°F (115°C)
510		275°F (135°C)

Remove floor temperature relay from vehicle and check it for continuity and voltage. On terminals No. 5 and 6, and terminals No. 2 and 4 continuity should exist. Terminals No. 1 and 3 should not have continuity. See Figure.
With 12 volts applied across terminals No. 5 and 6, continuity should exist between terminals No. 1 and 3. Continuity should not exist between terminals "2" and "4". If relay does not perform as specified, replace it.