Dash clock clip wiring

Hi guys and girls I'm seeing if there is any information or if anyone can give me some advice please. On the long white clip that connects to the clocks I'm wondering what wires do what please i.e  illumination & rev counter and do on please.

Its not the best description so if more information needed then just ask lol.

Cheers in advance.

Refer to your Bentley/Haynes as they spell out exactly what they are and where they either come from or go to.

Morning, I'll have a look cheers buddy.

here is what the diagram for the 1990 Cabriolet looks like.

The Pins of the connector are on the top of the Cluster Highlight.. labeled as t14/2 (brown) ground, and t14/14 Black B+(12v) input



Yeah I know a Charappy snap it is but an example that you will find in the Bentley/Haynes

I'll have to sort one out I've been busy but thanks for your reply. I'm struggling getting my red counter working. Engine is a agu 1.8t running none gti clocks. I have the msd adapter but nothing from my red counter. Any advice on what it could be please?

There was some one some where that got it working via a wire wrapped around the HV coil lead.

But the feed actually came off the Fuel pump relay on the 90's and earlier.

Oh right. I'm going to have to get comfy in the garage tonight then and have a look at whats what. Don't suppose you know what colour wires on the dial clip run the rev counter  if this makes sense please?

That white long clip or connector, has 2 wing locks on each side.  Once you unlatch those locks (be careful not to break them) the Big White connector will hinge open and allow you to move or remove the wires about. Make sure that you label the wires in a note as to what position they reside prior to popping it open.  As you look at it on the left Pin 2 is Brown, and Pin 14 is black.

The rev counter input is red/black  pin 5.

I have a how to increase the tension on the pins by carefully removing the shroud and the mylar off the tongue, then using one piece of Electrical tap on the pad side of the tongue then replace the mylar, and the shroud.

The rev counter (also called a Tachometer/ Tach for short) is powered on the 90's by the fuel pump relay vial the coil input.

The fuel pump relay only fires when the shutter on the hall sender is covered (as when a plug gets spark).  This is happening on a running engine it appears that the Fuel pump relay is on all the time, as your DVOM can't react fast enough to show you this.  It is these pulses from the coil that produce the Tachs count of the Revolutions of the engine.  At the tach signal input to the cluster red/black you will see basically 12V there.
but in actuality it is 12V Pulsed.

Check to see if you are getting 12v at the red/black wire on a running engine, if not (that is in relation to frame as well as pin2 (brown)) if not then verify that pin2 is 0 ohms to ground,,,
 In the archive section of the forum under how-tos I have a plethora of DIY's for the Cabriolet (90's )

While the DIY engine is for Digifant, most all others apply to the MK1's in general.

Oh there is a link to them in my signature "where are my diy's".

Just thought I should add this bit to this article.
I've managed to get the rev counter working. I noticed a black wire not attached to anything coming from the white clip that connects to the back of the clock's (dials).

So I started looking further down the loom for a matching wire and BOOM!!! found one connected it and sorted.  Buzzing all working now. Plus for my freshly built engine and car I've also reset the miles on my clock's to match and gave them a full clean and some nice bright led's.

Thanks for your help guys 😁.

Glad you got it sorted out.