Air Temperature Sensor
- Connect ohmmeter across pins 30 and 33 in control unit connector. With air temperature below 68°F (20°C), resistance should be 2100 or more ohms. With air temperature above 68°F (20°C), resistance should be below 2900 ohms.
- If resistance is not correct, repeat test at air flow meter terminals 34 and 25. If resistance is still not correct, repair harness or replace meter as necessary. See Figure
- Connect ohmmeter between ground and pin 30 at connector. No continuity should be present. Repeat check at air flow meter terminal 25 and body. Repair harness or replace meter as necessary.