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Home >> Volkswagen >> 1981 >> Rabbit S >> Repair and Diagnosis >> Engine Performance >> Ignition System >> BOSCH Hall Effect Electronic Ignition System >> Testing >> Ignition Control Unit Check >> Vanagon Only
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Vanagon Only

  1. Disconnect both plugs at idle stabilizer control unit and connect plugs together. Remove connector from distributor. Connect positive lead of voltmeter to terminal 15 of ignition coil. Connect negative lead to terminal 1 of coil. See Fig 1. Turn ignition switch "ON".
    Fig 1: Voltmeter Hookup for Ignition Control Unit Operation Check on Vanagon Models
    G09314113Courtesy of NOT AVAILABLE
  2. Voltage should be approximately 5-6 volts. Voltage should drop to zero volts within 1 second. Briefly ground center pin on distributor connector. Voltage should read 5-6 volts briefly, then drop to zero.
  3. If control unit did not perform as specified, replace control unit.
    NOTE: If voltage reading does not drop within 1 or 2 seconds, turn off ignition switch immediately.
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