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[PaulW]

Gone through both wiring diagrams... Some bits are different (I think I am best getting the wiring and ultrasonic from the facelift and fitting it to mine instead of bumming about with the sonics on this one and adapting...)

So...

01 - DIFFERENT (S41 Same on Both, but GB X1 Power Siren pin3 connected to Pin 5 on Facelift)
02 - Same
03 - DIFFERENT (No Connect on Pre-Facelift) - Connect to Boot Release Switch
04 - DIFFERENT (No Connect on Pre-Facelift) - 20A Fuse 15 on Facelift (Ignition Voltage)
05 - DIFFERENT (No Connect on Pre-Facelift, GB X1 PowerSounder Pin3 on Facelift) - Connect Pin 1 from 12-way
06 - DIFFERENT (No Connect on Facelift) - Part of Ultrasonics on Pre-Facelift
07 - DIFFERENT (Ultrasonics on Pre-Facelift) - IRL (Interior Lamp) on Facelift
08 - DIFFERENT (Ultrasonics on Pre-Facelift) - IRL (Interior Lamp) on Facelift
09 - DIFFERENT (Ultrasonics on Pre-Facelift) - No Connection on Facelift
10 - Same
11 - DIFFERENT (Ultrasonics Ground Same, but Facelift has Memory Seats and Mirrors (MEM))
12 - DIFFERENT (Ultrasonics on Pre-Facelift) - IRL (Interior Lamp) on Facelift
13 - DIFFERENT (Ultrasonics on Pre-Facelift) - No Connection on Facelift
14 - Same
15 - Same
16 - Same? (CRS on Facelift, TKS on Pre-Facelift - CRS/TKS Linked Boxes on Facelift)
17 - Same
18 - Same
19 - Same
20 - Same
21 - Same? (diag not listed on pre-facelift, SD instead of XD on Facelift, Still uses X1)
22 - Same
23 - Same
24 - Same? (SD, SH on Facelift, SD, FH on Pre-Facelift)
25 - Same
26 - Same
27 - Same
28 - Same - No Connection

Few differences noted.

Power sounder wiring, from pre-facelift says goes from Pin 1, yet facelift is Pin 5.  I assume then that Pin 1 on the 12-way is the same as Pin 1 on the 28-way (as thats the crossing that was mentioned)

Pin 4 has no connection on the Pre-Facelift, so as on the facelift its Ignition Voltage (20A Fuse 15), I need to feed a live from Fuse 15 in the dash (Ignition Switched Live)??  That may explain why the alarm didn't shut off when I turned the ignition on...

I think that may be covered now...  at a guess...  There were differences in relay orders and switchings, but going over both thats as close as I can make it out to be!

If I'm wrong, say now!  I'm going to hunt down the interior light and ultrasonics from a facelift elite now to get this working (as need micropghone for CCRT).

As for the ultrasonic connection, the brown wire which splits off from the feed, I'll just splice into the current loom feed (where it splits to brown there) as I reckon thats right...

[PaulW]

Ok figured out the black wire (Pin 4 on the 28-pin connector)

On the Facelift, it goes to S92
On the Pre-Facelift there is no connection, however on the 12-pin connector (at pin 4) the Brown/White wire is S92, so that needs shifting over now (will do it tomorrow and then test the loom.)  This now means there are 2 cross-over connections going from the 12-pin to the 28-pin plug.

I've made the adaptor loom now (except for soldering in the above connection) so I reckon its good to go...

MDTM/TB - can one of you just make sure I'm right please before I give this a test tomorrow??  I'm still not 100% clued up on the facelift diagram and how its ordered (as in whats the 12-pin and 28-pin references) or is the facelift diagram linked further in just for the 28-pin, in which case happy days!

The ultrasonics I'm leaving disconnected for now, as I will be getting the loom and feed from the facelift so there is no scoping needed now.

This is what I've 'bodged' so I don't need to mess with the car loom itself and can easily revert to standard if need be...



I used the socket connector off an old control module from another omega from the scrappers, and soldered the wires from the facelift loom cuts to the relevant pins on the socket.  Order of things...

Pre-facelift loom -> Socket -> Through adaption loom -> Facelift Control Module

The wire in the top-left is from Pin 10 of the 12-way (boot release solenoid)

The 4 wires top-right are 3 for the ultrasonics & light, 1 for boot release switch

The single wire loose bottom-left is from pin 4 of the 28-pin connector, and will be soldered to pin 4 of the 12-way connector tomorrow.