Unlikely. The supply from diode trio to field circuit is internal to alternator. There is no diode in the warning light itself or associated wiring. Thank you!
"Y mae dafad ddu ym mhob praidd"
1972 4/4, 1981 MGBGT, 1984 FLHT1340, 1980 XLH1000, 1990 ZX10
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