Airflow Meter Potentiometer
Remove rubber cover from electrical connector on airflow meter. Leave connector connected. Connect volt/ohmmeter between terminals and note readings. See SUBARU AIRFLOW METER RESISTANCE table. If readings are not to specifications, check fuse, ignition relay, wiring or replace airflow meter.
NOTE:
Do not start engine during this test. Place the ignition switch in the "OFF" or "ON" position as indicated.
SUBARU AIRFLOW METER RESISTANCE
| Ign. Sw. | Wire Colors | Readings | ||
|---|---|---|---|---|
| Off | Black-Ground | 0-10 Ohms | ||
| Off | Brown-Ground | 0-10 Ohms | ||
| On | Red-Brown | 10-12 Volts | ||
| On | White-Brown | 1-2 Volts | ||
| On | White-Brown | (1) 2-10 Volts | ||
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