Tow bar wirering- strange lamp...*Fixed* - Renault Forums :: Independent Renault forum

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post #1 of 7 (permalink) Old 12th February 2008 Thread Starter
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Tow bar wirering- strange lamp...*Fixed*

Hello everybody!

Tomorrow i plan to install a tow bar on my "new" Laguna1 station car.

The bar comes with a 7-lead wiring kit and should be more or less plug and play. Never the less I have a few questions that I hope somebody can help me with :

1. The kit comes with a little green lamp. Apparently I'm supposed to drill a hole in the dash somewhere for the lamp, run a wire from the lamp to the fuse box and connect the wire to a replacement blink-relay (part of the kit). My question is: Do I really need this?? As far as I can see the little green lamp will just blink in unison with the turn indicators on the dash - and what's so great about that?

2. The kit has an option for cars with "lamp surveillance" if that's the English term. I.e. that you get a warning if a lamp has blown. My car is the "Concorde model" (same as RXE?) and is very well equipped. But I'm mot sure that it has the lamp thing. Does anybody know?

3. I'm still waiting for the previous owner to mail me the instruction book and I haven't got a Hayne's Manual yet. So I'm kind of blank on what to expect when I disconnect the battery - or rather what happens (or not!) when I connect it back again. I'm pretty sure that the radio will need a code to run - but what about the immobilizer - will I need some code for that too?

Thanks for reading!
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post #2 of 7 (permalink) Old 12th February 2008
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You are required by law to have a light or buzzer to tell you all the indicator lights are working when a trailer is connected if a bulb or trailer light does not work the light will not flash it is only supposed to work when a trailer is connected it will probbably flash once when no trailer is fitted
hope this explaines the idea behind the thinking of them.
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post #3 of 7 (permalink) Old 12th February 2008
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As Tinker says, you need either an audible or visible warning that the trailer indiciators are working. The light should flash in time with the indicators or the buzzer should sound with each flash. You can wire the car without, but legally one or the other is required.

A buzzer is easier to install, and the way that most installers would do it these days. I'd simply buy a trailer flash buzzer, fit that and not bother to install the lamp. Here's one on Towsure - only 3 quid, but the P&P may well come to more. You'd be better off getting one locally if you can.

If the Concorde is RXE spec, then it will have bulb failure warning on the brake and side lights. I don't think this extends to the indicators (you're expected to notice the rapid flash when a bulb is out, like any other car.) I don't think the reversing lights or rear fogs are monitored either, but don't quote me on that

Having said that, I wired both of my RXE's conventionally, with no special consideration for the bulb failure warning. The only problem I ever had was that if the trailer plug wasn't in properly, resulting in a bad earth return to the car - the voice synthesizer would report a side light fault every time you braked with the side lights turned on.
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post #4 of 7 (permalink) Old 12th February 2008
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I also had no problem wiring up an RXE with the coventional kit and the buzzer is ok just make sure you position it in a place where its not to loud as when i first put mine in it was louder than the stereo and ened up muffling it with a rag.
I ran my eletrics in to the boot on the right hand side as there is/was a plastic pannel therethat was easy to put a hole in to i then just ran 2 wires over to the left hand side to pick up the indicator and tail light.
The plastic pannel is behind the removable storage cover, you just need to pull out the carpet trim in there to get at it.
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post #5 of 7 (permalink) Old 12th February 2008 Thread Starter
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Thanks for the answers. I I didn't realize that the relay is smart enough to sense when a caravan is connected. In that case I will use it (I don't think the warning lamp is compulsory here in Denmark).

Good news that I can just connect the wiring kit "normaly". That way I can even get by without disconnecting the battery. One less worry!

Unfortunately I haven't fitted the tow bar yet. Ended up chasing rusty spots with a Dremmel tool in the area around the rear axle instead. Could have sworn that they weren't there when I looked the car over at the dealer...
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Last edited by grandtour; 12th February 2008 at 11:40 PM.
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bar , lampfixed , strange , tow , wirering

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