Freelander 1 Dampness maybe?

When I turn the ignition on, the rear tailgate opens, could there be damp in the door lock caused by all this crap weather, or an ignition switch fault? Any advice welcome, thanks.

or are you catching your fob if you keep the open button pressed the back window will go down

Is the latch triggering and actually opening the door to the first stop?

The rear door is CCU controlled, so it may be an issue there. autologic or the bearmach tool should be able to read the state of the module, however, a word of caution.....

I had a short on the tailgate wiring loom that caused the latch solenoid to energise when the lights were switched on; by the time I diagnosed the problem I had a pile of melted wiring loom and a lot of smoke in the car!

The rear door loom clips can fail over time, leading to the loom catching as the window drops. This in turn leads to the insulation getting damaged and opening a circuit to other circuits/systems.

I would urge you to do a visual inspection of the loom in the rear door, tracing back to where it plugs in to the main loom. If you remove the offside rear trim in the boot you can locate where the rear door loom plugs in to the main loom.

Thanks for your replies, no I am not catching fob and keeping button pressed, and yes the latch is triggering and opening the door.
If the fob is pressed once to open the drivers door, everything works ok, i.e. turn ignition on and door stays shut.
Yesterday, when the fob was pressed twice to unlock car, the door opened, so I took the door panel off, cut a flap in the membrane,
and sprayed wd40 everywhere. It did'nt do any good, it's still the same, so I took the window fuse out, just in case the glass got frozen
to the door rubbers, and knackered the window mechanism.

but did you take the fuse out when the door was shut or open if shut then ok if open it will not close the window up

I made sure the door was shut before removing the fuse.
Someone told me to put some silicone grease on the glass rubbers,to stop them sticking to the glass. If it stops raining I'll do it later.

It sounds like a faulty CCU as the locking is controlled via that. It could be a wiring fault I suppose, but I've not idea where in the circuit it would be. It's a strange one that.

I put the fuse back in earlier so I could open rear door, then locked and unlocked doors and everything worked fine.
I'll leave the fuse in and try it again tomorrow.

No joy, same problem so fuse is back out.
I read somewhere to disconnect the battery for 10 minutes, and recalibrate the window, I'll try that next.

I changed the battery in my key fob a few weeks ago, and everythings working fine.
I just don't get it, or is it just a freelander thing