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Old 11-14-2012, 12:56 PM
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John Firestone
Location: Bremerhaven, Germany
Join Date: Sep 2003
Posts: 2,848
Mein Auto: 1996 318is
The check control measures the current drawn by each bulb, individually: the measurement of one bulb should not influence the measurement of another.

You may be suffering intermittent connections from corrosion between the bulb holders and the sheet metal strips they twist into. Have you tried cleaning them?

Last edited by johnf; 11-14-2012 at 01:33 PM.
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