Originally Posted by Queen of Spades
Anyone know what I should be showing for voltage at the rear brake light socket? There are two power leads and a ground. One power lead is for the always-on light (dimmer), and the other for when the brake circuit is engaged. I'm showing that both have power -- one ~3v the other ~12v - with no brake applied. When brake is applied, both terminals show ~12v. Is this how it's supposed to be?
Should be 0 and 12 with with the brake off. That 3volts is probably an induced voltage from that wire running up against other wires that are carrying current.