Re: [Peugeot-L] 405 DL Brake Light issue

From: Simon Fryer <fryers_at_rcpt.to>
Date: 06/02/05

All,

> A while ago Bill Geissler tapped:

> No fuse blown. No bulbs burned out.
>
> I had wired together the green wires last year (green means ground right
> ?) because one of them was frayed which had caused a burn mark on a
> connector. It worked for a year -- fine.

I am away from my 405 so I can only work from memory. The grounding on strips on my 405 I seem to remember involved a large number of green and yellow wires that are attached to a pretty large grounding point on the bodywork, just below the lighting cluster.

I am a bit concerned about the burn mark. Just the grounding coming loose shouldn't cause that.

> Now none of the rear lights for brake work. I'll try a volt meter but I
> don't think any juice is connecting to the bulbs at all.

This sounds a lot like a grounding problem. It could be a connector that has come apart but I would start with the grounding.

If it is the grounding, you should be able to get volts at the light sockets.

> For testing the ground connection should I connect an external wire to
> the car chassis to the green wires ?

For testing, connect the volt meters negative lead to the bodywork of the car. Make sure this is a good connection. I have a habit of using a multimeter for all this sort of work and use the continuity tester to ensure I get a good connection.

The Haynes manual for the 405 has a useable wiring diagram for this sort of diagnostic work. The manual includes the grounding points, and the numbers listed on each wire. It is very useful for seeing how the car should be wired!

Simon

-- 
------------------------------------------------------------------------
"Well, an engineer is not concerned with the truth; that is left to 
philosophers and theologians: the prime concern of an engineer is 
the utility of the final product."  
Lectures on the Electrical Properties of Materials, L.Solymar, D.Walsh



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Received on Thu Jun 2 20:54:29 2005