D4 door switches / vehicle wake up bypass?

**DieselLSE** · 14th September 2025, 09:48 AM

Originally Posted by discomatt69

This won’t work on my 2013 D4 and I suspect all D4’s
i have drinks fridge in the L/H rear and the oven and 2nd battery on the R/H side with the 2nd row of seats removed. Because of this setup we are constantly in and out of the car when camping so have tried all options with the doors to stop the whole system waking up
If we leave the rear doors ajar so we can going and out of the rear all good it won’t wake up the whole system with the door on the first latch
if we then open the front doors that are fully closed it wakes the whole system every time
The only way to stop it is to leave all doors ajar
when camped up for a extended period just put the solar blanket onto the car battery every 2-3 days for a little while and have never had a flat battery
I am certainly not interested in pulling apart every door and butchering the watering to makes switchable option, the less mods to any vehicle the better and more reliable it will be is my rule of thumb

Did you read the pdf? It will work on all D4s exactly as written. And yes, with the camping mode switch on, opening any door at any time will not set off the pre-ignition sequence.

**discomatt69** · 14th September 2025, 11:54 AM

Originally Posted by DieselLSE

Did you read the pdf? It will work on all D4s exactly as written. And yes, with the camping mode switch on, opening any door at any time will not set off the pre-ignition sequence.

Nothing to do with reading the PDF, which I did read
i have spent years camping out of the D4 and can assure you that with the rear door ajar, one or both makes no difference and the fronts totally closed if you then open a front door the whole car wakes up with all the pre-ignition sequence so therefore putting a switch on one door will not work as suggested
whether the trick with holding the centre button on the front light for 5 seconds i don’t know as I haven’t tried it so maybe that’s the difference

**DieselLSE** · 14th September 2025, 12:46 PM

Originally Posted by discomatt69

Nothing to do with reading the PDF, which I did read
i have spent years camping out of the D4 and can assure you that with the rear door ajar, one or both makes no difference and the fronts totally closed if you then open a front door the whole car wakes up with all the pre-ignition sequence so therefore putting a switch on one door will not work as suggested
whether the trick with holding the centre button on the front light for 5 seconds i don’t know as I haven’t tried it so maybe that’s the difference

Hang on. Are you confusing the interior light operation (which, as you say, can be toggled on/off) with the pre-ignition sequence? The two are not related. I can positively, absolutely and categorically state that once a rear door has been left ajar (or the camping mode switch set to on) and the initial pre-ignition sequence has timed out (about three minutes), then opening the front doors will not trigger a pre-ignition sequence. Opening a front door will, however, operate the interior lights (if toggled on - I always leave them toggled off) and the puddle lights which is most annoying.
I installed the camping mode switch in July 2024 before my last Simpson crossing and various other trips and it works as per the pdf.
It's possible that your 2013 D4 is programmed differently to my 2013 D4. The wiring will be the same, but perhaps yours is configured differently somehow.

**LRD414** · 16th September 2025, 08:58 PM

I’ve installed a “camping switch” exactly as per DieselLSE guideline to my 2014 D4. The switch on a single door that mimics “door open” signal prevents all system wake-ups when any other door is opened or reopened after the initial sequence times out. Works perfectly and is one of the best mods I’ve done, always found it really annoying to have to keep a door slightly ajar while at camp. Note that I only ever had to keep one door ajar, any door, and no other door opening would set it off so the behaviour now with switch is the same, just that you can fully close all doors and open at will. Just need to remember to turn switch off when you want to lock the vehicle

Scott

Thread: D4 door switches / vehicle wake up bypass?

Thread Tools

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions