Right - here we go. I've not uploaded pictures to the web for a while.
Firstly, the bulkhead connector behind the glove box is X2 - you've already got the diagram for that in the posts above.
From there it goes to connector X87 which is located on the right hand side of the engine compartment:
X87 Connector (Male):
X87 Connector (Female):
Then from there it goes to the ECU X93 connector (there are two on the underside on your model it would seem - mine are on top):
The wires might be missing between X1 and X87 (you can test that with a continuity tester once you've got the plugs off) or it might be missing from X87 to X93.
Of course, once you know where the missing link is, you can either try the Heath Robinson approach or plump for the 'correct' wiring harness.
Good luck with your CC project. The plastic clip on my clutch switch broke about 18 months ago and I never got around to fixing it (the ECU thinks the clutch is down all the time, so after a while it detects this error and gives me a fault code for the clutch switch circuit - I imagine yours will do something similar).
Ok, I am in the same boat here , having a 2.0 tdi Zaffy (54 plate) with Y20DTH engine , have the required switches ( clutch and brake) Opcom shows that these are present and working. I purchased the stalk with the CC buttons and fitted it BUT don't have the connector for simple plug and play . I am quite competent with electrics/mechanics and have no problem trying this but I need to know which wires (colours if poss) from the stalk go to which connectors to the plug ( and which pins ) behind the glove box. I imagine people are getting sick of this now but I cant find any exact information ( which I would prefer before I start)
Thanks for the info. Its going to be a couple of days until I can look at it.
I'll let you know what the outcome is.
Edit - Yes please if you have a diagram of the X93 connector you could let me have.
hi i have the same engine in mine and would like to no how u got on with yours and if u solved the problem and got it to work???
any more info on how u did this and what wires went where would be very helpfull
I tried unsuccessfully on wednesday this week, wired correctly to the plug behind the glove box but when checking the switches using opcom, they don't register. I took the ignition on live from a wire on the back of my radio. I'm thinking that maybe I don't have the wiring after the socket. keep us posted, I'm really keen to do this.
I'm thinking that maybe I don't have the wiring after the socket. keep us posted, I'm really keen to do this.
I'm hoping that all the engine wiringlooms are the same and that its only the other vehicle electrics that differ due to the various different models of cars/vans (Astra car, Astra van, Zafira, left hand drive, right hand drive - 6 different radio looms....)
It also means that the engine loom can be used in and GM car! think of the cost saving to GM?
Today's the wiring day.... but have to find a Tech2 if it doesn't work and at Easter that could be hard!
We're all wired up but got nothing so we have to get the cruise turned on. We were going to get it done last week but the offer of it being done in Dublin in exchange for a Pint dried up so now we're waiting on an OPCOM to arrive. The local dealer wants €75 plus VAT to plug in for less than 5 mins!
Will keep going. On the plus side we now have some awesome OBDII software....
I'm glad someone has revisted this thread; I've been having a go at this today myself on my 1.8 Zafira (Z18XE).
I've got all the wiring done and checked it all out with my OPCOM; according to the measuring blocks everything seems to be working - I've activated the CC and when I press the buttons on the stalk the all give the appropriate read out.
Do I remember someone suggesting that you have to give it a feed from the ABS to pick up a speed signal or should that not be necessary on this model?
The only other thing I can think of is that I haven't got a clutch switch yet, so to test it until such time as I get one, all I have done is wired in a 12v feed to pin 53 under the dash. I am beggining to doubt whether that was a good idea now, although again according to OPCOM the clutch switch is now "Active" where it wasn't before.
WORKING! Retrofit Cruise control to 2002 1.8 Zafira
All sorted now - once i realised that I actually wanted the clutch switch to show as "Inactive" rather than "Active" to allow it to work; I then set about investigating my wiring and fixed a dodgy connection and hey presto! Working Cruise Control.
It's a little difficult to get used to not having a tell tale light on the dash like I have on my vectra, but I should be able to live without it - unless someone knows how to wire one in??
Re: WORKING! Retrofit Cruise control to 2002 1.8 Zafira
Hi, just joined and I'm sorry for resurrecting a 6 month old thread but I'm looking to get CC fitted to my '52 plate 1.6 club. Think I'm gonna have to go the new wiring route myself as there doesn't appear to be any wiring kicking about in the dash for the stalk and clutch switch - also no clutch switch !!
The thing I want to check is, as the engine in my car is the z16xe with fly by wire accelerator, can I also forego the 4 pin brake switch ? I've had a quick look up in the footwell before my back gave out but the switch in there seems to have four wires already coming off it, that I can see. It appears however to be totally different in design to the ones I've seen on eBay etc.
Also, the Haynes manual I've got doesn't seem to have the correct wiring diagram in it, like the OP's, mine shows a Cruise Control Module !
Any help you could give would be gratefully received. Thanks
It's been a long time since I last tried getting cruise control to work on my 2.0DTI with the Y20DTH engine, so over the weekend I tried again.
I failed as the 3 wires are missing at the X93 ECU connector on the fuel pump.
In case it helps somebody else this is what I've discovered.
The X93 connections on the Y20DTH PSG16 that are required are;
The X93 is located on the fuel pump and its really difficult to remove due to space limitations;
The missing pins can be seen from the next two pictures, so it needs extra pins adding or a new loom;
So my next step (which is now going to have to wait a few months) is to try and get the connector off another loom and add the pins.
I was about to try to fit cruise control to my Zafira DTI (2003) manual with the Y20DTH engine.
I have fitted the stalk , but have no connector to plug the 4 wires for the cruise switches behind the wheel. The brake and clutch switches show up on op-com fine, and I had hoped to run wires to the bulkhed connector.
Having just read your post, I am reluctant to start taking the car apart if it is not going to work.
Have you (or anyone else with a Y20dth engine) managed to get yours working yet, if so where did you wire the stalk connector to?
Easiest way to see is to remove the X93 connector from the fuel pump (its very cramped but will just come out and see if you have pins in 24, 43 & 48 (the shell is numbered).
If you have these then you are probably ok to the bulkhead. If like me you don't then you need a different loom to the fuel pump (something I've not done yet).
Hope that helps.