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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

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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