Making BC work with stalk controls

[Robsey]

I have had a look at the details for my 2003 BCM and CIM fitted to my 1994 Vectra-A

The options available for these 3 modules are : -

Details for my 2003 (Half CAN BCM and CIM)
BCM -
No mention of the head-unit or controls in the Variance Config tables

CIM Module table options-
Steering Wheel Control - Not Present / Scroll Wheel / Buttons
Wiper Stalk Location - Right Side / Left Side
Info Display Switch - Present / Not Present

DIS - Display Module contain these options.
EHU (Entertainment Head Unit – NCDR2011 / NCDC2013 / NCDC2015 / No Radio
Board Computer – Present / Not Present – (For GID and CID only)
Steering Wheel control – Present / Not Present
Check Control – Present / Not Present

Just thinking outside the box...
When you remove the head-unit, you cut one of the power feeds to the display.

To operate the display without the radio power feed, you need to ensure that the display is wired up as follows: -

You need Permanent Live to pins 5 and 31 - Red (one of these is controlled via the head-unit).
You need ignition live to pin 4 (Black)
You need a ground wire to pin 2 I think. (either 1 or 2).

The part that you mention about enabling anti-theft protection without a radio definately sounds familiar... I am sure it is this function that gives the warning "This is a Once Only Operation".

[Z80]

I have had a look at the details for my 2003 BCM and CIM fitted to my 1994 Vectra-A

The options available for these 3 modules are : -

Details for my 2003 (Half CAN BCM and CIM)
BCM -
No mention of the head-unit or controls in the Variance Config tables

CIM Module table options-
Steering Wheel Control - Not Present / Scroll Wheel / Buttons
Wiper Stalk Location - Right Side / Left Side
Info Display Switch - Present / Not Present

DIS - Display Module contain these options.
EHU (Entertainment Head Unit – NCDR2011 / NCDC2013 / NCDC2015 / No Radio
Board Computer – Present / Not Present – (For GID and CID only)
Steering Wheel control – Present / Not Present
Check Control – Present / Not Present

This matches the usual instructions about programming both CIM and DIS...

However, I stil don't have any "Board Computer" variant for the CID. Could it be my Op-Com versions ?

Just thinking outside the box...
When you remove the head-unit, you cut one of the power feeds to the display.

To operate the display without the radio power feed, you need to ensure that the display is wired up as follows: -

You need Permanent Live to pins 5 and 31 - Red (one of these is controlled via the head-unit).
You need ignition live to pin 4 (Black)
You need a ground wire to pin 2 I think. (either 1 or 2).

The part that you mention about enabling anti-theft protection without a radio definately sounds familiar... I am sure it is this function that gives the warning "This is a Once Only Operation".

Pin 4 from both CID and GID wire (ignition, black) goes directly to a 7.5 A fuse (F126).

Pin 1 from both CID and GID (ground, brown), goes directly to the same grounding point for both (dash crossmember)

Pin 2 is unused on both

The GID uses pins 8 (red/white), 29 (grey/white) and 31 (red) to receive signals from radio, phone kit and GPS when present.

It also uses pins 9, 10 and 11 for the radio only, and 30 for the GPS only.

The CID only uses pins 29, 30 and 31, and only for the GPS.

Of course, color screens are ony factory fitted when a GPS head unit is fitted too. Maybe those 3 pins have to be connected to something...

My loom still has the wires, but even if I refit my CCR2006, I'm not sure it would deliver anything to pin 30...

[kenp]

BC is not a variant. As that is via the code-index.

the pin 31 you need constant power to that.

[Robsey]

Yes to obtain BC, the usual practice is to read your current display Code index value. (we are interested in the first three digits).
The second half covers the version of that particular code index, and covers stuff like ice crystal warning etc.

Anyway as said in the first line.. read your code index value - say 008-02.
What you need to do is add 1 to this to create code 009-02

if yours is 005-02, then this become 006-02 and so on.

Also -agreed with Ken on the pin 31 thingy...

I probably worded it badly, but pin 31 (red or red/white) is a radio controlled battery live.
You may need to put a link wire between pin 5 and pin 31 to fool the display into thinking that the head-unit is switched on / present.

Regarding pin 1 or 2... I knew it was one or the other, but wasn't 100% certain which - again hence my comment.

[Z80]

Yes to obtain BC, the usual practice is to read your current display Code index value. (we are interested in the first three digits).
The second half covers the version of that particular code index, and covers stuff like ice crystal warning etc.

Anyway as said in the first line.. read your code index value - say 008-02.
What you need to do is add 1 to this to create code 009-02

if yours is 005-02, then this become 006-02 and so on.

Oh, so do you mean I have to change the code index value from the one I read from the GID ?

It was 002-01, so should I now program 003-02 ?

Also -agreed with Ken on the pin 31 thingy...

I probably worded it badly, but pin 31 (red or red/white) is a radio controlled battery live.
You may need to put a link wire between pin 5 and pin 31 to fool the display into thinking that the head-unit is switched on / present.

Well, I thought the red wire going to pin 31 would be wired to ISO permanent battery voltage Already.

Do you think it's not, when the radio is absent ? Note it doesn't bother the GID.

I'll first check if I've got any voltage on this wire, then if not, try to provide it.

There was also a red/white wire coming from the radio pin 7 and going to the GID pin 7, that's used to power on the antenna (and external amplifiers). It forced the GID to display information on the top line, and doesn't exist anymore on the CID, so it isn't used anymore to tell the CID the radio is on.

OK, I'll check for that pin 31, then...

Thanks for the advice.

[Z80]

Tried 003-02 - no change (apart that I lost the nice yellow on grey characters for dull white on black or dark grey ones. Strangely, only the Tech2 seems able to select the other style).

Tried 008-02 (same as CIM) - no change.

Tried 009-02 - no change.

I mean, no BC information display.

Now I'll have to try shunting pins 5 and 31...

[Z80]

OK, now, listen carefully : DON'T put the candle back...



Well, don't do that.

Pin 31 from the GID/CID is actually an OUTPUT, not an input.

Shunting the wires will immediatley turn on the radio, even without plugging the CID back in !

It's actually directly linked to the ISO "ignition" signal, as the GID/CID actually PRODUCES IT !



Now at least I know where it comes from...

It's a +10 V switching signal. It still need to be boosted to +12V with enough current to turn on an aftermarket radio or a Parrot kit, unsing my transistor add-on circuit. Of course, it also works with +12 V instead. Luckily, I don't think it's linked to any other modules (but DAB or other accessories when present), I did't burn anything... :P

But linking pins 5 to 31 is useless, as the CID actually produces the signal on pin 31 to turn on the radio (any radio, aftermarket radio included), and not the opposite. If I had plugged the CID after I linked the wires I would probably have burnt it at once.

So do NOT do that, ever !




Now, any other bright idea ?

[Woody]

OMG Z80 you are FEARLESS LOL, Good Luck m8, I admire you guys !! Keep trying.

[kenp]

Dont you have the VDA plug? thats located next to the glowbox? as that one have the 12 live and the 12 inginition, where things dont loose there memory...

[Z80]

Bah ! I'm almost sure the CID scans the CAN bus for the radio, and displays the error message when it doesn't reply.

I'm pretty sure there's not just a magic wire to fool the CID into thinking the radio is there...

Anyway, the CID or GID (maybe the TID too, I don"t know) is responsible from emitting the "inginition" signal used by the radio to either auto turn on, or just allow the user to turn it on.

Or maybe it just resends a signal from the BCM, I don't know.

The strange hing is the wire is yellow on the opel/vauxhall ISO plug. just checking the TIS... Yes, pin 2 wired is marked as "red" on the A132 connecotr, but the wire there is actualy yellow.

Another weird thing from GM...

Oh, and the TID actually also has the connection (pin 8) too.

The TIS doesn't list any connection other than to the different modules (DAB, NAV, etc.) that can be linked, so considering my display is the one and only existing module in the car and it powers up my Alpine head unit, I'm pretty sure it diirectly generates the signal, most probably out of the real ignition wire at pin 4 (black wire).