Thought I was doing right by putting car to the stealers regarding towing electrics !

So, at the cost of, £350, I had them take out what was there, and refit with genuine 13 pin electrics and module!

Here's the tricky bit, have read through the manual to see what should happen! But can't find any info on this?? My information tells me that, when attached to the tintent!

The rear parking sensors should stop? Does that!
Locks the suspension? Don't know yet!
Changes the gearing? Don't know yet!!
Stops the rear fogs from illuminating? Doesn't do that!!
The trailer symbol should flash in time with indicators? Doesn't do that!!!

Can anyone help me with this? Please

It's definitely a trip back to Pentland Land Rover .........................

Think I'll test a new 405 this time!!!!

Thanks in advance


David 2014 vogue se

they have no enabled in the CCF to tell the car it has them fitted, the parking sensors is automatic once plugged in the rest is an enable result! Current vehicles
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Trailer light no flashy on the 07my should be on permanently, flashes on the earlier ones and 09> but not the 06-09.
Not sure on the fogs
Never locked the suspension on mine could still change the height
Knows it is towing so will change the gearbox map slightly you will notice more when towing, it will hold the gears slightly longer and if in cruise kickdown earlier There is nothing that can't be fixed with a hammer😜😜
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Strange because if the parking sensors are disabling, the car obviously knows a trailer is there, so i would have thought it would cut out the rear fogs on the car too, seems to work on mine. Do the fog lights on the trailer work? Very small trailers don't have fog lights, so it's possible if the car doesn't sense a load on the fog light pin from the trailer it doesn't disable the car fog lamps.

it doesn't "change the gearing" but it does change when the gearbox changes gear. It's a bit like sports mode, it waits a bit longer before shifting to a higher gear, to compensate for the extra loss of momentum the trailer will generate.

On mine it locks the suspension in to normal mode, ie. it wont let you select off road height or access mode and it wont drop to motorway height.

Mine doesn't seem to flash anything extra on the dash, but i think the bulb check system alerts you if a bulb fails on the trailer - so the indicator buzzer or light isn't legally required. There just has to be a system to alert you when the trailer indicators aren't working.

I think on some models it also changes the way the electronic stability program works when a trailer is attached.

13 pin electrics........ locks the car in normal height, sort of, depends on whether you have normal light bulbs in your trailer or led's. It uses the LCM to trigger the ride height, parking sensors etc. If there is not enough resistance on the circuit, then it will do nothing

As for the gearbox, it does alter the TCC lockup point, basically it will rev it's nuts off and change gear just when you think all is broke and it's stuck in a lower gear
Works well with trailers up to 1.5 tons, over that it is a pain in the posterior and counter productive. It overheats the gearbox, causing the lock up to happen even later, which makes the gearbox hotter and so on. This system was written by a numpty, who thought that Range Rovers would only pull tin tents and garden trailers The only ways around is to fit leds to the lights, which may cause endless "CHECK TRAILER LIGHTS" on the screen of death and still trigger the system, but if your lucky it will not see anything and leave the car as normal but then the PDC will tell you your about to hit your trailer and go nuts

Or I have recently had a bit of success with using manual mode on the gearbox, I leave it in drive until I get near the speed that I want and then shift in to manual and change up a gear. Provided that it hasn't boiled it's bits off, the TCC will normally lock up and the gearbox is happy

As for the fogs, I haven't checked, and so what if it lights up your trailer on a dark foggy night, at least you know the bloody thing is still there

If your testing the system make sure that what you are plugging into has light bulbs and not leds, cos like the car if you get the wrong leds, it will have a fit and cause some of the functions not to work. Failing that add a couple of 25 watt ballast resistors between the white and the yellow / green wires (7 pin 12N wiring, don't know the colours for the indicators on the 13 wires) as this will sort out a lot of issues  Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

I have a 2007 with 13 pin electric and tow a tintent with normal bulbs.

The trailer light doesn't flash and the suspension doesn't lock. I haven't tried the fogs so can't confirm either way.

The parking sensors are deactivated because are faulty.

I can't say I have noticed any difference with the gearbox.

I have set the towball to "on" with the IIDTool but don't know if I need to turn anything else on.

all i did was set the "towball fitted - on" with my IID that seemed to activate it all. Isn't the towball option within the Parking sensor menu though?

Try re-activating the parking sensors (even if they just scream at you), see what happens when the trailer is connected.

I have a MY11.5. I activated mine with the IID tool.

With caravan connected
The rear parking sensors are disabled.
The rear fogs are disabled
The trailer light flashes on the dash with the indicators.
My suspension can still change height.
Gearbox holds gears longer and drops gears on hill quicker but I use manual (command shift) when towing as it's smoother.

Get it back to the garage as it sounds like it isn't activated.

Thanks guys,

Phoned pentland this morning, and the ball is now in their court !!

I'll keep you all posted!

Many thanks for the info

David 2014 vogue se

Fish, I suspect that you don't have a genuine LR / Westfalia electrics, as they are plug and play, there is no programming required, you just plug in and it does what it's supposed to. But every other by-pass relay will need to be programmed to make the functions work. However before you run off and have it programmed, I would leave it well alone and live with the fog lights and PDC, cos I personally think that the gearbox works better as standard, especially if you've a big tintent with some weight in it  Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

If the westfalia towing electrics don't need the car to be told they are there, what does the towball on/off setting in the CCF do?

Tow ball on/off in the ccf is, I suspect for non genuine electrics. When I brought my westfalia 13 pin wiring kit, it said that it was plug and play with no programming required, and it was right. I don't have a IID tool, but I have all the towing functions that are supposed to be there, height lock, gearbox , trailer light monitoring, PDC cancel, etc. Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

The only thing is though, i can't see Land-Rover designing their cars with the ability to use non-genuine parts, i mean they want you to buy their stuff.

Also though, if say there were no towing electrics physically fitted, but the CCF was set to say a towball was fitted. Then there's nothing there not to work. (if that makes sense). ie. turning it on with a car that doesn't even have a tow bar would do nothing, so it may as well just be set to ON by default i wonder if it is. Perhaps it can just be disabled as a diagnostic tool when there is a fault with a towing module?

I think the CCF on different model years has different functions.

On my MY11.5, before I got my IID, I wired in the 13 pin and only had the trailer symbol flashing to start with. The sat nav screen didn't recognise a trailer connected. Also fog lights on car were on when trailer connected and possibly PDC.

When I got my IID tool I activated the trailer wiring. The menu asked if 7 pin, twin 7 pin or 13 pin. (I think possibly one more for other countries)

Since I've activated it the sat nav screen asks what trailer is connected when I hook up. I also have the trailer camera functions on my sat nav.

My tow kit instruction said at the end it needed CCF action to work 100%


On the pre 09 there should be a white trailer ECU in the cubby box above the tow ball holder area and a relay. Have you got both of these?

I have genuine parts, I changed from 7pin to 13 pin myself. I'm not too bothered about what does and doesn't work really, I was just comparing mine to chefkenmores.

I must say I haven't noticed any difference with the towball setting on or off and only got the iid tool recently.


I am going to check the CCF again though to be sure.