[V8] [s-cars] Headlight motors, type 44 ... wiring?

Robert Rossato rossato.qlist at gmail.com
Sun Sep 7 05:36:19 PDT 2008

They're stepper motors, so I believe the black wire is also power, but it is
coming from the controller that varies its voltage.  The yellow wire is low
beam, though I think technically it is also wired through the controller
(not that it matters much), and brown is ground.

I wired a set of these into my Corrado many years ago and somewhere I have
the wiring diagram squirreled away - but that's 3600 miles away at the
moment.  The way they're supposed to be wired is so that the controller only
functions when the low beams are on (i.e. no high beams), but that may have
just been the Corrado was wired.  Obviously you can wire it any way you

The best thing to do is to look at the motor and look at the corresponding
circuit numbers molded in to the housing near where the harness plugs in.
It's been a while, but I believe 31 is ground, which will be the brown
wire.  Then the other two will be something like 56a, or b, or 58g - or some
such thing.  Can't recall.  Take a look at the controller and you should see
corresponding circuit numbers there.  Connect away.


On Sun, Sep 7, 2008 at 4:08 AM, Dave C <dconner at gmail.com> wrote:

> Howdy all,
> I'm installing eurolights and would like to include the motorized
> adjusters.  I have the euro lights, motors, wiring harness and switch so it
> all looks pretty straightforward.  The car is an 1987 5ktq, but I don't
> know
> what model year the harness came out of.  The one thing I'm hung up on is
> connecting this harness into the stock U.S. wiring.  Of course the Bentley
> wiring diagrams don't show this because this was a strictly euro feature
> AFAIK.  Maybe headlight motors came to the US on other models (maybe the
> V8?) but I don't know.
> The harness has a three point plug and I need to connect these 3 wires into
> the stock wiring somehow.  It has yellow (Y), brown (BR) and black
> (BK) wires.  I think BRN = ground, Y = power ... BK = I don't know.
> Could someone tell me the function of the BK wire?  What to connect these
> three wires to?
> thanks,
> Dave C
> Columbus,OH
> 89 100E
> 87 5ktq
> 87 5ks

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