Potentiometer Test

1. Disconnect battery ground cable and remove air flow meter from vehicle following procedure in "Component Replacement"
2. Connect ohmmeter between terminals 33 and 34 on air flow meter. Ohmmeter should read 100-400 ohms.
3. Connect ohmmeter between terminals 34 and 35 on air flow meter. Meter should read 200-500 ohms.
4. Connect ohmmeter between terminals 32 and 34 on air flow meter.
5. Operate flap through its range, while observing ohmmeter.
6. Any reading other than 0 ohms or infinite resistance is normal.