Help - Immobiliser Wiring

[L66TEY]

Please could someone help with confirming the wiring for the wires which unfortunately were pulled out when I removed the tunnel. 

Its only two wires that I need clarification on, hence 50/50 getting it right. 

Please see pics, which connector side should each of the wires go into;

Black Wire
Black/White

The Immobiliser is a Sterling passive immobiliser fitted to a 2010 R300, the wires in question come out of the underside of the tunnel via a grommet  

With thanks

Chris

[Jonathan Kay]

Do you know that they are something to do with the immobiliser or could they be anything?

Black and Black/White are often used for a brake failure warning circuit or a handbrake switch.

Jonathan

[7 wonders of the world]

looks like the plug for the aerial on the Sterling,

I would cut the plug out and solder or crimp as the plugs are unreliable. - mine has been perfect since I did this.

[L66TEY]

Reply to #2

Im certain it's Immobiliser related as the wires go into the tunnel and not into the harness. 
 

Reply to #3

Sounds like a good idea - put which wires do I connect to what, as the wires going into the connector are both black?

Or does it not matter for this circuit, ie aerial?

With thanks

Chris 

[Jonathan Kay]

I wouldn't expect it to matter for an RF aerial... as long as it isn't connected to anything else on the aerial side of the connector.

Jonathan

[L66TEY]

My concern is the wires could be for the led, hence would like confirmation somehow of whether the wires that enter via the grommet are aerial loop wires or for the led??

[L66TEY]

But having thought about it logically, I've not checked if the led flashes when I press the "Start" button. 
If it does, by process of elimination the two wires must be the aerial wires. 
 

[L66TEY]

Now resolved 

For future reference;

1) Wires from grommet are aerial
2) Wires from front end of tunnel are led

The connector on the left hand side is the aerial connector, the one on the right is the led connector. 


 

 

[Jonathan Kay]

Well done.

Are both pairs Black and Black/White?

Thanks

Jonathan

[L66TEY]

The 4x wires from the immobiliser ECU are all black to the two connectors, noting the aerial has a male connector and the led has a female connector. 

The two wires for the aerial are black and black/white with a female connector. 

The two wires for the led are black and black with white intermittent line with a male connector

 

 

[Jonathan Kay]

Thanks

Jonathan

[L66TEY]

Stock image of the Immobiliser for reference