Corolla & Pickup
Start engine. Check that choke valve opens as choke housing is heated. Unplug choke heating coil connector. Using an ohmmeter, measure heating coil resistance. See Fig 2 or Fig 3. On Corolla, resistance should be 19-24 ohms at 68°F (20°C). On Pickup, resistance should be 19-23 ohms at 68°F (20°C).