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Airflow Sensor (VANAGON)

  1. Turn ignition off. Remove Electronic Control Unit (ECU) connector. Attach ohmmeter to ECU connector. See Figure . Resistance should correspond to ECU PIN CHECK in AFC-DIGIFANT II AIRFLOW SENSOR RESISTANCE table.
  2. With ignition off, unplug connector from airflow sensor. Attach ohmmeter to airflow sensor terminal. See Fig 1 . Resistance should correspond to AIRFLOW SENSOR PIN CHECK in AFC-DIGIFANT II AIRFLOW SENSOR RESISTANCE table.
AFC-DIGIFANT II AIRFLOW SENSOR RESISTANCE

Terminal Ohms
ECU Pin Check
No. 6 & No. 17 500-1000
No. 17 & No. 21 (1)
Airflow Sensor Pin Check
No. 3 & No. 4 500-1000
No. 2 & No. 3 (1)
(1) Resistance should fluctuate as sensor door is moved.
Fig 1: Identifying AFC-Digifant II Airflow Sensor & Terminals
G121508Courtesy of VOLKSWAGEN UNITED STATES, INC.
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