Coolant Temperature Switch (GS300 & LS400)
Using a DVOM, check for continuity between coolant temperature switch terminals. See COOLANT TEMPERATURE SWITCH CONTINUITY table. If coolant temperature switch continuity is not as shown, replace switch.
COOLANT TEMPERATURE SWITCH CONTINUITY
| Temperature | Continuity | |
|---|---|---|
| GS300 | ||
| Less Than 190°F (88°C) | Yes | |
| Greater Than 207°F (97°C) | No | |
| LS400 | ||
| Less Than 181°F (83°C) | Yes | |
| Greater Than 199°F (93°C) | No | |