no headlights or horn

[chris205]

Hi after changing my engne loom on my v6 coupe i no longer have and dip or main beam headlights or a horn , side lights are working fine and all the fuses are fine , anyone got any ideas what it could be ?
cheers

[steve_earwig]

This looks familiar, did you ask this over on the coupe club?

I can only see the drawings of the loom on Service Box, which aren't very helpful. I believe there to be a connector under the battery tray which might be worth looking for, although it looks like the loom goes down either side of the engine bay, so presumably the join is somewhere up by the dash. Presumably you've checked for dodgy connectors on the units themselves, I know it's unlikely for all 6 to go down but I've seen stranger things. The only other thing I can suggest is to work backwards from the units themselves and trace the loom, looking for corroded connectors or damage.

[chris205]

Thanks for the reply , yes i asked on the coupe club but no replies as yet . do the plugs under the battery tray have anything to do with the lights? as i have disturbed these putting a new engine loom in .
cheers

[steve_earwig]

This seems to be the main suspect for 406s suddenly becoming cyclopses but, looking at the drawing on Service Box it looks like this would only affect one side. Can't hurt to check it though.

[chris205]

have been out and unplugged and cleaned all the connectors under the battery and double checked all fuses and checked connections behind the light stork and still no bloody lights, im sure its just something simple but its trying to trace it.

[omega]

have been out and unplugged and cleaned all the connectors under the battery and double checked all fuses and checked connections behind the light stork and still no bloody lights, im sure its just something simple but its trying to trace it.

have you checked that you have power at the lights?

[chris205]

no not yet i guess thats the next stage , im not getting any lights on the dash for dip or main beam either,

[steve_earwig]

Ooh, that's on the dash somewhere then. Hold on, it's a D8 so that's the same stick does both, check the connections on it.

[chris205]

i have checked the connections and they all seem fine , do you think it could be the switch itself ? it was fine before i changed the loom and seems strange that both the horn and the lights have stopped working

[barryj75]

had that prob with a 405td many years ago and it was down to the indercator stick

[steve_earwig]

Without access to a proper diagram I'm not sure how the wiring's done, so I can't say dip/main and horn are on a separate feed because I just don't know

Ok, reaching for the book that I know for a fact doesn't cover your car... it says there are separate feeds for the side lights, dip/main and flash (all permanent) and indicators and horn (switched). Assuming this is somewhere near the truth, put a meter over the connector and see what you actually have. Before this is a "common connector", not even sure where that is though.

Btw do the headlamps flash?

[chris205]

thanks for your replies , no the lights dont flash , il check with a multi meter tomorrow if im getting power to the lights,

[chris205]

im not getting any power to the lights only the side lights also the stalk is one getting power for the indicators and side lights , where does the stalk get its power from ?