Trailer Auxiliary plug
Trailer Auxiliary plug
The trailer plug is the plug that allows for the connection of either a round 7 pin, or more commonly, a 7 or 12 pin rectangular trailer connector, for use with a towbar and related accessories.
This plug appears is standard in all Falcons AU-BFIII (1998-2016) and all Territory models, however pinout includes additional wires in later models due to additional features
Trailer plug inside the boot of a S1 Sedan
Plug Type
The connectors used for the trailer plug are known as 090 connectors, originally manufactured by Yazaki.
| Name | Product Number | Notes |
|---|---|---|
| Female Housing | 6090-1021 | Car loom end connector |
| Male Connector | 6090-1051 | Trailer adapter end connector |
| Female Pin | 8240-4422 | For use in Car loom end connector |
| Male Pin | 8230-4282 | For use in trailer adapter end connector |
Pin Layout
The following notes assume pin numbers where you are looking at the trailer adapter loom plug (female housing), with the clip cut-out facing up:
01 |
02 |
03 |
04 |
|---|---|---|---|
05 |
06 |
07 |
08 |
Pin Wiring
For the Standard Colour, refer to the Australian Standard Pinouts
| Position | Colour | Function | Standard Colour* |
|---|---|---|---|
| 01 | Green/Red | Brake lights | Red |
| 02 | Brown/Grey | Tail lights | Brown |
| 03 | N/a | Blank (no wire) | N/a |
| 04 | Red/Black | Reverse Lights | Black |
| 05 | Black | GND/Earth | White |
| 06 | Green/Blue | Driver Indicator | Yellow |
| 07 | Green/Grey | Passenger Indicator | Green |
| 08 | Yellow/Black | 12V Constant | Orange/Pink/Purple (12-Pin configuration only) |
Australian Standard Pinouts
Conflicting information suggests that wiring layouts may differ based on manufacturing locations. If buying a plug similar to this from an offshore manufacturer or brand, confirm this information with any relevant manuals.
7 Pin layout
While the AU Falcon originally came with a 12 pin flat connector, a more appropriate and cost-effective connector to be used at the time of writing is actually a 7 Pin layout. This is simply as many trailers with the 12 pin connector exceed normal towing conditions for vehicles, unless you intend on towing an older Caravan or other heavy duty trailer.
The Pinouts shown here are confirmed by Narva and TAG, known brands in Australia.
Car Socket End
01 |
06 |
05 |
03 |
02 |
07 |
04 |
|---|
Trailer Connector End
04 |
07 |
02 |
03 |
05 |
06 |
01 |
|---|
Pinout Information
| Pin # | Colour | Function |
|---|---|---|
| 01 | Yellow | Passenger Indicator |
| 02 | Black | Reversing lights |
| 03 | White | GND |
| 04 | Green | Driver Indicator |
| 05 | Blue | Electric Brakes (Where fitted) |
| 06 | Red | Brake lights |
| 07 | Brown | tail light |
12 Pin layout
The 12 pin layout is the standard layout for the Factory trailer looms in the Ford Falcon. If you are intend on using a 12 pin layout, note that the AU Falcon only implements a partial implementation of this standard, due to certain functions, like fog lights, not being present on the host vehicle. The implementation for this plug is noted below:
The Pinouts shown here are confirmed by Narva and TAG, known brands in Australia.
Car Socket End
08 |
09 |
10 |
11 |
12 |
01 |
06 |
05 |
03 |
02 |
07 |
04 |
|---|
Trailer Connector End
12 |
11 |
10 |
09 |
08 |
04 |
07 |
02 |
03 |
05 |
06 |
01 |
|---|
Pinout Information
| Pin # | Colour | Function |
|---|---|---|
| 01 | Yellow | Passenger Indicator |
| 02 | Black | Reversing lights |
| 03 | White | GND |
| 04 | Green | Driver Indicator |
| 05 | Blue | Electric Brakes (Where fitted) |
| 06 | Red | Brake lights |
| 07 | Brown | tail light |
| 08 | Orange | Battery Charger |
| 09 | Pink | Auxiliary (Battery) |
| 10 | White | GND |
| 11 | Grey | Fog Lamps |
| 12 | Purple | Auxiliary (Other) |
7 Pin Round layout (Large)
It is highly recommended that you use the opportunity, if available, to upgrade the socket to either a 7 Pin flat or a 12 Pin flat if working on this. This information is an example of what you can do rather than what you should do, due to this plug being largely phased out as being obsolete
Car Socket End
01 |
||
|---|---|---|
02 |
07 |
06 |
03 |
05 |
|
04 |
||
Trailer Plug End
01 |
||
|---|---|---|
06 |
07 |
02 |
05 |
03 |
|
04 |
||
Pinout Information
| Pin # | Colour | Function |
|---|---|---|
| 01 | Yellow | Passenger Indicator |
| 02 | Black | Reversing lights |
| 03 | White | GND |
| 04 | Green | Driver Indicator |
| 05 | Blue | Electric Brakes (Where fitted) |
| 06 | Red | Brake lights |
| 07 | Brown | tail light |