Dimmer Circuit Test: Description

When headlights are turned on, dimming voltage is supplied to cluster connector "A", pin No. 13 and cluster connector "B", pin No. 6. Dimming voltage varies between 5 volts and battery voltage depending on rheostat position. Feed to cluster connector "A" is used to dim vacuum fluorescent displays. Feed to cluster connector "B" provides power to PRNDL bulb only.