Badger110 Posted April 10, 2020 Share Posted April 10, 2020 Can someone explain is simple terms how the interior lights are wired up in the defender (puma)? i have 3 wires going to the light purple/brown - perm live purple/white - switched live black - earth. what’s confusing me is how they react when I lock the truck. when the truck is unlocked and doors shut, the purple/white is showing 12v when I open the door, this drops to 0v and the interior light comes on when I shut the door and the light fades, the volts rise to 12v again So a reduction in volts causes the light to come on, and an increase causes it to go off. the permanent live doesn’t change no matter what I do Quote Link to comment Share on other sites More sharing options...
ballcock Posted April 10, 2020 Share Posted April 10, 2020 It's not a switched live it's a switched earth when you open the door the door switch contacts to earth making the circuit. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.