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Home >> Oldsmobile >> 1988 >> Toronado Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> 3800 VIN [C] - BCM Tests W/Codes >> Code Testing >> Code B420, Twilight Light Relay Circuits >> Note On Intermittents
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Note On Intermittents

Since both sets of relays can cause an intermittent condition, see NOTE ON INTERMITTENTS in chart B420 (2 of 3) and (3 of 3).

Fig 1: Code B420, Twilight Relay Circuits (1 of 3)
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