The 'E' Type Forum

Just to round this out for three-terminal switches: The center terminal is the feed (blue) from the rotary light switch. With the terminals on the left-hand side when viewed from the driver's seat, the top terminal is for the low (dip) beam and the bottom terminal takes the two wires (blue yellow) f...

I have the same issue: 4 wires on the existing switch and 3 on the replacement. Using a continuity tester, the center terminal on the new switch is common to the two other terminals. Therefore, I'm assuming the blue wire from the main lighting switch connects to this center terminal. Is that correct...