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[GmasterT]

Afternoon all, I've had a search but can't find anything current! Anyone got a link to the yellow to grey mid plug change

[annihilator]

Here you go,all credit to MarksDTM posted on Vauxhallownersnetwork.

Two connector pin out:

Yellow connector:

Pin 1 - Red - To F12 (20A)
Pin 2 - Brown - To Chassis (0V)
Pin 3 - Blue/White stripe - Outside temp sensor
Pin 4 - Blue - Outside temp sensor
Pin 5 - Black - To F15 (15A)
Pin 6 - Grey/Green stripe - To F26 (10A)
Pin 7 - Grey/Yellow stripe - Instrument Illumination (dimmer controled)
Pin 8 - Red/Grey Stripe - Radio (aerial power feed i.e. Radio on indication)
Pin 9 - Brown/White Stripe - Radio Serial Interface
Pin10 - Brown/White Stripe - Radio Serial Interface
Pin11 - Brown/White Stripe - Radio Serial Interface
Pin12 - Blue/red stripe - Speed signal (from ABS controller)
Pin13 - NC
Pin14 - Brown/White Stripe - To pin 8 of diag connector (to support programming)
Pin15 - Black/Yellow stripe - To check control
Pin16 - Black - To F2 (15A)
Pin17 - White/Green stripe - To check control
Pin18 - Black/Yellow stripe - To check control
Pin19 - Yellow/Red stripe - To brake pad wear sensors
Pin20 - NC
Pin21 - NC
Pin22 - NC
Pin23 - Grey - To Auto transmission
Pin24 - NC
Pin25 - NC
Pin26 - NC

Black Connector

Pin 1 - Brown/Blue stripe - To fuel pump relay (i.e. engine running)
Pin 2 - NC
Pin 3 - Brown/Blue stripe - Coolant level sensor
Pin 4 - Brown - To chassis (0V)
Pin 5 - Brown/White Stripe - Computer stalk buttons
Pin 6 - Brown/Red Stripe - Computer stalk buttons
Pin 7 - NC
Pin 8 - Blue/Black Stripe - Fuel level sender
Pin 9 - Black/Brown Stripe - ECU signal
Pin 10 - Brown/Yellow Stripe - Washer Level sensor
Pin 11 - Brown/Grey Stripe - Oil level sensor
Pin 12 - NC

grey connector info, in the brackets is the equivalent earlier MID pin info (Y=Yellow con and B=Black con)

Pin1(Y2) - Brown - To Chassis (0V)
Pin2(Y3) - Blue/White stripe - Outside temp sensor
Pin3(Y4)- Blue - Outside temp sensor
Pin4(Y5) - Black - To F15 (15A)
Pin5(Y1) - Red - To F12 (20A)
Pin6 - Green - RPM signal
Pin7(Y7) - Grey/Yellow stripe - Instrument Illumination (dimmer controled)
Pin8(Y8) - Red/Grey(white) Stripe - Radio (aerial power feed i.e. Radio on indication)
Pin9(Y9) - Brown/White Stripe - Radio Serial Interface
Pin10(Y10) - Brown/White Stripe - Radio Serial Interface
Pin11(Y11) - Brown/White Stripe - Radio Serial Interface
Pin12(B8) - Blue/Black Stripe - Fuel level sender
Pin13(B11) - Brown/Grey Stripe - Oil level sensor
Pin14(Y14) - Brown/White Stripe - To pin 8 of diag connector (to support programming)
Pin15(Y15) - Black/Yellow stripe - To check control
Pin16(Y16) - Black - To F2 (15A)
Pin17(Y17) - White/Green stripe - To check control
Pin18(Y18) - Black/Yellow stripe - To check control
Pin19(Y19) - Yellow/Red stripe - To brake pad wear sensors
Pin20 - NC
Pin21(Y23) - Grey - To Auto transmission
Pin22(B10) - Brown/Yellow Stripe - Washer Level sensor
Pin23(B5) - Brown/White Stripe - Computer stalk buttons
Pin24(B6) - Brown/Red Stripe - Computer stalk buttons
Pin25 - NC
Pin26(Y12) - Blue/red stripe - Speed signal (from ABS controller)
Pin27(B9) - Black/Brown Stripe - ECU signal
Pin28(B3) - Brown/Blue stripe - Coolant level sensor
Pin29 - Black/Violet Stripe - To Hid lighting
Pin30 - To Diesel fuel pump (X20DTH only)

The rpm signal (green wire on the one plug version) had to be taken from the clocks, otherwise fuel consumption didn't work... also the outside temperature was not correctly displayed (temperature readout started to climb from about 22 c to 69( in autumn ) till it showed F at last ) swapped the wires so it works perfectly now.

[Diamond Black Geezer]

Worth its weight in gold!

(being digital information I suppose it has no mass, so no weight, strictly speaking that's an insult!  )


Thanks to Mark and yourself annihilator 

[Doctor Gollum]

Also a guide on here for retrofitting Mid to Tid equipped cars

[annihilator]

only 2 years on and still trying to sort this 
"Pin28(B3) - Brown/Blue stripe - Coolant level sensor" is incorrect should be pin 20 on the grey plug to pin B3 on the black plug.

Also having no luck with displaying fuel consumption/range etc. which is presumably handled by this
"The rpm signal (green wire on the one plug version) had to be taken from the clocks, otherwise fuel consumption didn't work" I presume this means connect the green direct to the green on the multiplug behind the instrument pack which I've done but still get the F in the MFD.
Anyone got this working?
Cheers John.

[Doctor Gollum]

What year is your car?

 Guide was written on an '54 3.2.

If pre or mid facelift, then use the wiring diagrams in Haynes

[annihilator]

I'm using Haynes which is how I spotted the coolant sensor difference it's the f fault that has me stumped as the info seems to tally with what's in Haynes.
It's a '97 2.5V6 manual.

[Doctor Gollum]

What head unit/display do you have?

[Doctor Gollum]

Also guide was yellow to grey, not a black plug to be seen

[annihilator]

Early pre face-lift mfd's had a yellow and black plug which suffered with pixellation with age hence the swap to later single grey plug type which doesn't. If you'd read the full wiring list you'll soon catch on. Head unit is of no consequence.

[Doctor Gollum]

Ah, OK. Makes a bit more sense.

Is the green on the back of the instrument cluster at Pin 22?

Also how are you swapping the plugs? By moving pins or joining wires? Be mindful that the pins aren't a great fit iirc.

[Doctor Gollum]

Have just had a look at the diagrams. All you can do is list the pinouts for both types and cross reference them.

The guide here is of limited use as it is to swap from a TID (yellow plug) to a late Mid (grey plug).

So go back and cross check every pinouts. Can't be much more help without actually being there.

[MonzaGSE]

Did this a couple of years ago on my 94 opel omega mv6. Also had the coolant level problem until i changed pin 28/20. The old pins locked OK in the new connector when i bent the pins locking tabs a bit extra. Had to change fuel sender and instrument print plate in mine as the 94 and some 95 cars have a different setup for fuel sender. Shouldnt be a problem on a 97 car though. Got Opel to program the new mid to the right engine/gearbox and wheel size and everything worked great. Mid must be programmed  according to the age of the mid and not the cars age. So in my 94 car i got them to program the new mid to a 98 3,0 auto.

[annihilator]

Hi,did you change the sender in the fuel tank and was it the pcb or fuel gauge you had to change.
A few pics of what I've got

 

top ones green pcb are the '97 V6 whilst the lower blue pcb is '98 mini-facelift
if I fit the mini facelift pack the F fault seems to disappear but the warning lamps either don't work or come on for the wrong thing.

Thanks John.

[annihilator]

Don't get long to edit your post 
Anyway forgot to mention when using the mini facelift instruments I got a figure in the range display not an F.