Vanagon F4-1970cc 2.0L (1982)
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connect voltmeter with + (plus) to terminal 15 and with - (minus) to terminal 1 of ignition coil
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turn ignition ON
spec. = 2 volts (min) for about 1 - 2 seconds and then drops to 0 volts
if not, replace Hall control unit and ignition coil
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touch center wire of connector on distributor briefly to ground
indicated voltage must increase briefly to 5 - 6 volts
if not, check for wire break in center wire and repair or replace Hall control unit if wire is OK
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turn ignition OFF
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connect voltmeter to outer terminals of Hall generator connector
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turn ignition ON
spec. = 5 volts (min)
Note: If readings are within specifications, but defect still exists, replace Hall control unit or check for wire breaks between Hall generator connector
and Hall control unit; if necessary, repair
Note:
Metal shavings or other debris between the ignition control unit and heat sink can cause stress which may damage internal circuits of the control
unit:
When replacing ignition control unit, thoroughly clean heat sink before assembly.