Thermotime Switch

1. Connect ohmmeter between terminal 4 of EFI harness connector and ground
2. With coolant temperature above 77 degrees F, there should be no continuity
3. With coolant temperature between 57 and 77 degrees F, any reading is acceptable.
4. With coolant temperature below 57 degrees, F, resistance should be 0.
5. If readings are not as specified, check wiring harness between thermotime switch and control unit. If wiring is satisfactory, check thermotime switch as outlined in "Component Testing."