Re: Vectra-B Remote Central Locking - Discussion

[Robsey]

I sold my Kiekert (early Vectra-B) remote central locking to a friend in Egypt.
So I have no ability to test it.

I will look at working on my Megamos (later Vectra-B) remote central locking in May.

I plan to do a lot of electrical work during that week.

I have found that it is easy to get a hex dump (bin file) from the Kiekert unit using autoscanner opel scanner,
I have not worked out which two-digit pair makes up the security code.

When you have this, you could use OpCom / Vauxcom to program any changes.

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I could not get a Hex dump of the Megamos unit because it is part of the alarm system.

But -
If you have the matched engine ecu or immobilizer, then you may be able to get the code from those instead. Using autoscanner.

[vectravod]

You have compiled a good instruction on the standard alarm. When the ECU is IMMO. Alarm from one car, then you can remove the carpass from the immo or the ECU, and then of course you can apply the code for Alarm.
I have the ability to retrieve car pass, security code. There is equipment that allows you to do this by programming the chip. But with a dump, Megamos 93cl46 never worked.
Any additional information is always very helpful.

[vectravod]

I sold my Kiekert (early Vectra-B) remote central locking to a friend in Egypt.
So I have no ability to test it.

I will look at working on my Megamos (later Vectra-B) remote central locking in May.

I plan to do a lot of electrical work during that week.

I have found that it is easy to get a hex dump (bin file) from the Kiekert unit using autoscanner opel scanner,
I have not worked out which two-digit pair makes up the security code.

When you have this, you could use OpCom / Vauxcom to program any changes.

-----------------

I could not get a Hex dump of the Megamos unit because it is part of the alarm system.
.

Damp , so if you knew the key how this eeprom is encrypted, then the solution to the code secret could be approximated)

[Robsey]

Yes.
The answer is knowing which two 2-digit pairs contain the code.

[vectravod]

Yes.
The answer is knowing which two 2-digit pairs contain the code.

The answer is important, with the XOR key, carpass is encoded ....... You can determine the place, there will not be many options

[Robsey]

I have asked for assistance from my other forum, opcomusers.org.

But so far, nobody has any information.

[vectravod]

I have asked for assistance from my other forum, opcomusers.org.

But so far, nobody has any information.

I managed to find a simple solution at the moment. There is a dump with a known code, it was reloaded into another Megamos block, the block works, the code is determined, a new key was able to be flashed. The microcircuit with which it worked is 93CL46. As a light version, this option works.

[vectravod]

[Robsey]

I cannot tell on there, which blocks contain the code.

If you know which blocks they are, then it would be the same locations for all Megamos ATWS units.

And that would be the puzzle solved.

I tried looking at the bin file with my Vauxcom Advanced (2011 version), but the only supported Eeproms are 93C66..

So I do not have the correct number of bytes...

[vectravod]

This solution should be suitable for all Megamos. Opcom does not support this encoding. Hands, programmer, Xor calculator. Theory of miscalculation and a solution should be)))

[Robsey]

Sadly there are not many advanced versions of Opcom / Vauxcom, so little chance of supported Eeproms being added to the current limited range.

As for the XOR thingy... I have no experience at all with such devices / software.

[vectravod]

There are no such versions of Opcom that can work with these blocks. All these works are at the level of programming. therefore, any read damp with code would be helpful.

[vectravod]

Throw a dump with known code to make it easier to solve the problem.

[Robsey]

A few updates on this.

Both Kiekert and Megamos Units.

DEAD LOCKING.
I have been advised that the black / blue wire for dead-locking on pin 10 of the 28 pin plug, should be connected to pin 20 of the yellow alarm connector.
Apparently, the dead locking does not work by connecting to the yellow / red wire on pin 12 of the 12 pin anti-theft / remote central locking module.

Megamos unit only.

VISUAL ARM / DISARM SIGNAL.
For flashing the indicators when arming and disarming the anti-theft module I have discovered that the Omega-B uses a specific yellow relay.
Part number 9134880.
Approx £18 from GPS for GM part, or £21 for an OEM part.
(The Vectra-B uses internal connections within the multi-timer module).

There are six pins on the Omega relay.
3 red battery-live power feed wires for relay pins 2, 3 and 4.

1 black / white wire on pin 6 to the anti-theft connector pin 14 (28 pin plug).
Flash control trigger wire.

Then -
1 black / white (left) on pin 5 could go to alarm plug pin 12, and
1 black / green (right) on pin 8 could go to alarm plug pin 25,
- these are the output wires to the indicators.

I have a relay on order, so hopefully some news shortly.

I may have to look inside the relay to confirm pin numbers, as the connector diagram on TIS does not match the pin outs in the wiring diagrams, nor the physical pin layout of the relay.

[Robsey]

I have looked further into this.

Amazingly the yellow relay is actually for the Vectra-B, Astra-G and Zafira-A etc...
Not for the Omega-B.
And the pins are numbered differently to the Omega, but
The pin numbers do match the relevant TIS wiring diagram - see below.

I could not find an Omega-B 6-pin flasher relay. Only 4-pin units..

Anyway - moving on with the Vectra-B relay...









But I have looked into how it "should" work.

There are six pins on the Omega relay.
3 red battery-live power feed wires for relay pins 2, 3 and 4.

1 black / white wire on pin 6 to the anti-theft connector pin 14 (28 pin plug).
Flash control trigger wire.

Then -
1 black / white (left) on pin 5 could go to alarm plug pin 12, and
1 black / green (right) on pin 8 could go to alarm plug pin 25,
- these are the output wires to the indicators.

Correction -
All three red feed wires should be connected to battery live. (2, 7 and 10).
This relay is independent of the indicator and hazard flasher unit on the Cavalier.

Pin 6
black / white wire to the anti-theft connector pin 14 (28 pin plug).
Flash control trigger wire.

Pins 3 and 8 are outputs to the indicators.
Pin 3
black / green (right) to alarm plug pin 25,

Pin 8
black / white (left) to alarm plug pin 12.

Just need to wire it up and test the theory.

It is odd how the multi-timer is not required to get anything working on the Cavalier... hmmm .

[Robsey]

Referring to the Haynes manual-

The Cavalier alarm connector pin 24 is connected to the horn (fanfare) relay in Switzerland.

According to the wiring diagram, you could simply connect the brown / white wire from the horn switch directly to pin 19 of the megamos unit.
Hey presto a noisey alarm utilising the car's horn(s).

An easy take off point, would be where the brown / white wire connects to the relay in the dash fusebox.
Relay number 6, which is the bottom right relay.
---------------------------------

If this is true, then I think that I have finally sussed every wire on the Megamos retro fit.

Splitting connections between the Cavalier 12 pin central locking module plug, and the Cavalier 25 pin alarm connector.
--------------------------------
For cavaliers without a transponder key, this means installing your own immobilser circuit.

As such, the Megamos is an anti-theft warning system, not an immobiliser.
There is an immobiliser wire, but this is not relevant for Cavalier connectivity.

Cavaliers with a transponder will already have a remote alarm fitted.

The main Megamos How 2 has now been fully updated.

[Robsey]

I finally got the loom ready for the Megamos indicator flasher relay.

I know... it is two years since I started on this thing, but due to snow and poor weather, I decided to do some "kitchen work".

So in general terms...

I linked the left and right "input" wires to the battery positive.
The pins for the link terminals are only 4mm female spades / Lucar connectors.

As these are only "link wires", I made both of these black with a purple stripe, and linked them to the 12 volt battery feed - in my case a thick black with red stripe.



All three wires were linked and crimped into the 6.3mm female spade / Lucar connector before being soldered and sleeved. (Red sleeve to denote battery live).

According to the Vectra-B Haynes manual, the ATWS trigger wire is black with white stripe.
This was crimped and soldered, before getting a blue heat shrink sleeve to make it easily distinguishable from the other wires.

This is the "only" wire that comes from the UK right side of the car (ATWS Module).

All three of the other wires go to the UK left side for the main yellow alarm connector plug.

So that leaves the indicator output wires.
They are kept "electrically" separate from each other afrer the flasher relay, otherwise they will not work properly.

As per Vauxhall (and VW / Audi) protocol, Black with green stripe for right indicator
And
Black with white stripe for left indicator.

After completion of the flasher unit end...
The three black wires with coloured stripes will be run to the relevant pins on the alarm connector.



As per usual Robsey methods...
I loomed my black wires together with fabric looming tape for tidiness, and also with a plan to minimise cable rattle across the back of the dash fascia.



My only disappointment, is that I made my trigger wire quite short, and my output wires quite long.
I should have done it the other way round.


One long wire from the ATWS unit to the back of the glove box.
Secure the flasher relay to the back of the glove box.

Then run the three wires the short distance to the alarm connector on the left inner wing, next to the glove box.
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I can shorten the three black wires... no problem.
But making the trigger wire longer will mean another messy joint or link wire... pah!!

[Envoy CDX]

excellent.

[Robsey]

excellent.

Soon find out if it is excellent...
Hopefully get chance to test it in the Cavalier in March - warmer, drier weather permitting.

Just the indicators and the siren to test and that is the project complete.

[Envoy CDX]

Roll on the better months.

[Robsey]

Whilst looking at why my Scorpion alarm would not operate the door actuators / motors, I started to see "exactly" what the 12 pins of the Cavalier central locking module actually do.

Pin 1 - Brown / Red - lock signal FROM the hatch / boot.
Pin 2 - Brown / Red - lock signal FROM the driver's door.
Pin 3 - Black - Ignition live from fuse 12 (10 amps)
Pin 4 - Brown / White - unlock signal FROM the hatch / boot.
Pin 5 - Brown / Red - lock signal FROM front passenger door.
Pin 6 - Brown / White - unlock signal FROM BOTH front doors.
Pin 7 - Black / Yellow - Module controlled voltage TO ALL motors.
Pin 8 - Black / Red - Module controlled voltage TO ALL motors.
Pin 9 - Red - Permanent live voltage from fuse 17 (20 amps)
Pin 10 - not connected.
Pin 11 - Brown - Module ground
Pin 12 - Red / Yellow - Deadlock signal TO ALL but the driver's door and fuel filler flap.

Dead lock had always confused me...
I thought that setting the black / blue wire to earth in the dead-lock looms would set the dead locks.

Wrong!!
Setting the black / blue to ground is standard position.

Setting the blue / black in the door looms to the red / yellow wire from the module sets the locks into the dead-lock position.

Sheesh... you live n learn...
Every day is a school day.

[Robsey]

So if we sort the pins into the order of "function".

Pin 2 - Brown / Red - lock signal FROM the driver's door.
Pin 5 - Brown / Red - lock signal FROM front passenger door.
Pin 1 - Brown / Red - lock signal FROM the hatch / boot.

Pin 6 - Brown / White - unlock signal FROM BOTH front doors.
Pin 4 - Brown / White - unlock signal FROM the hatch / boot.

Pin 12 - Red / Yellow - Deadlock signal TO ALL but the driver's door and fuel filler flap, when connected to Black / Blue in central locking loom.

Pin 7 - Black / Yellow - Module controlled voltage TO ALL motors.
Pin 8 - Black / Red - Module controlled voltage TO ALL motors.

Pin 9 - Red - Permanent live voltage from fuse 17 (20 amps)
Pin 3 - Black - Ignition live from fuse 12 (10 amps)
Pin 11 - Brown - Module ground

[Envoy CDX]

Handy information.

[vectra1903]

I'm looking to fit a Kiekert unit to my Vectra A. What does full closure mean? Will I lose some functionality, or will something stop working when I fit the kiekert unit? Will I still be able to deadlock the car by turning the key?

[vexorg]

Full closure was when you press and hold the lock so that it closes all the windows and sunroof.

I've wondered about the deadlock before, on the vectra it's a double press on the lock to deadlock, or turn the key twice but it always returns back to vertical. The cav ones need the key to be horizontal to activate the deadlock switch.