X393S Connector Pinout (trailer wiring)

frozenwaffles · #1 09-25-2012, 08:46 AM

Hi, i'm trying to find the pinout for the X393S connector that you would hook up a trailer harness to. i have all the Hitch installation manuals and while they give you wiring diagrames with lots of numbers and codes, i have not been able to decipyer these. i have been lookig for ths information for months now!
What im looking for is a simple 'pin 1 is ground, pin 2 is stop lights' etc etc etc if you follow what i mean....
Can any one please help me?
The connector is a 12-pin connector.

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frozenwaffles · #2 09-28-2012, 11:57 AM

Ok, so i worked it out myself

Incase anyone else wants to know...
of the X393S plug:
Pin 1 - Left Turn Indicator
Pin 2 - ?
Pin 3 - Negative
Pin 4 - Right Turn Indicator
Pin 5 - ?
Pin 6 - Stop/Brake Lamps
Pin 7 - Running Lamps/Side Markers
Pin 8 - Reverse/Back Up Lamps
Pin 9 - Positive
Pin 10 - N/C
Pin 11 - Electric Brake Signal
Pin 12 - ?

TerminatorX5 · #3 09-28-2012, 01:22 PM

You have 8 pins assigned, if I remember correctly, there are only 6 pins present in the connector in the trunk coming from the trailer module and 7 pins in the harness going to the trailer hitch... I wonder, if I am missing any pin - but when i had a trailer, al the lights were working fine... with a converter to US 4 pin plug...

terryo · #4 10-01-2012, 06:32 AM

i cant get pin 11 to work on mine. everything works OK except for trailer brakes. thanks for the posted info

Giznaz · #5 10-01-2012, 01:04 PM

Quote:

Originally Posted by terryo

i cant get pin 11 to work on mine. everything works OK except for trailer brakes. thanks for the posted info

IF you have the factory module installed the trailer brakes should just be a data signal. More than likely the power on for the CHMBL.

When I installed my brake controller, I took signal from pax side under the dash, and had to run a wire to the output connector for the trailer plug. It took 12 volts from the battery, and modulated it within the controller

frozenwaffles · #6 10-02-2012, 04:16 AM

pin 11 is what was hooked up on my factory loom for the trailer harness that came from ECS. this pin was not populated in my X5 E53 2001, rather i put the signal from my brake controller to this pin/hole. but this is the factory recommended location

i installed the Tekshona Prodigy P3 brake controller and it gets its signal from the LCM as per the instructions floating around.

frozenwaffles · #7 05-10-2013, 10:39 PM

Hi guys, here is the final report for the X393S plug and its complete pin-out with both Australian and US plug connections

Clockwork · #8 04-13-2020, 01:37 PM

Thanks frozen waffles.
I'm thinking of making a 9V battery connection terminal using a Pollak 7 pin connector so in the situation where a battery is dead or disconnected in vehicle and doors are locked then this device could be installed into the US round Pollak connector to provide a little power to the Locking System to allow a remote key to unlock the doors for entry.
Mind you my door handle carrier and lock tumbler work perfect for me... But never know when this could be handy (or for someone else to build)
Thanks for your knowledge.

wpoll · #9 04-13-2020, 04:08 PM

Or... You can go directly to he actory wiring for all the information....

https://www.newtis.info/tisv2/a/en/e...iler-lighting/

Clockwork, I have a 13-pin Euro connector on mine and it works as you suggest - you can power systems and/or charge the battery (which I do) via the trailer connector.

Not sure a standard PP9 9v battery will power the locks - I doubt it can supply enough current. Might be better off using a small 12v power bank.

Clockwork · #10 04-13-2020, 06:19 PM

Quote:

Originally Posted by wpoll

Clockwork, I have a 13-pin Euro connector on mine and it works as you suggest - you can power systems and/or charge the battery (which I do) via the trailer connector.

Not sure a standard PP9 9v battery will power the locks - I doubt it can supply enough current. Might be better off using a small 12v power bank.

Thanks for the confirmation. I also heard this morning a 9v wouldn't be enough. A 12v or higher from a coreless.drill or as others have suggested, from a heated motorcycle jacket.

Now you have me thinking... I have C-Tek
Batt maintainers, so it would be easy to build a Pollak connector with the extra eyelets connector that C-Tek puts in kit (alligator and eyelets connections) then I could just "plug-in" my vehicle instead of popping it's bonnet and using engine bay terminals....

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