Tailgate Opening On It's Own

[kenw]

I have a dangerous problem with my 2002 C5 estate. The tailgate opens when you press the remote.

It also opens when either front door is opened. The worst part is it sometimes opens when driving. I can't keep anything in the loadspace in case it opens at speed, for obvious reasons. I dont know if it's connected, but it probably is, but the rear nearside door is locked and will not unlock, and the same with the tailgate window. Any ideas please????

[kenw]

I have a dangerous problem with my 2002 C5 estate. The tailgate opens when you press the remote.

It also opens when either front door is opened. The worst part is it sometimes opens when driving. I can't keep anything in the loadspace in case it opens at speed, for obvious reasons. I dont know if it's connected, but it probably is, but the rear nearside door is locked and will not unlock, and the same with the tailgate window. Any ideas please????

 

Problem solved, info for others: The tailgate release button wasn't releasing properly, it was stuck half in. Pretty obvious really.

[tornados]

I have a dangerous problem with my 2002 C5 estate. The tailgate opens when you press the remote.

It also opens when either front door is opened. The worst part is it sometimes opens when driving. I can't keep anything in the loadspace in case it opens at speed, for obvious reasons. I dont know if it's connected, but it probably is, but the rear nearside door is locked and will not unlock, and the same with the tailgate window. Any ideas please????

Hi

Bizarrely I have a very similar fault. My problem started when I went through a car wash. Water entered the boot window switch and shorted it out. From then on the central door locking has not worked properly AND the fault is not consistent. The drivers side rear door lock will not operate at all. I would check the switch for moisture in the rear boot window as a first step.

 

Keep me posted!

pS every time a door is operated the rear screen wiper activates!!!!

[paul.h]

every time a door is operated the rear screen wiper activates!!!!

 

This probably means the locking system is either providing an earth or a supply to the wiper motor. Either way, if the locking wiring is not the same amp rating it may burn out. Something to sort out.

[revittony]

Hi

Bizarrely I have a very similar fault. My problem started when I went through a car wash. Water entered the boot window switch and shorted it out. From then on the central door locking has not worked properly AND the fault is not consistent. The drivers side rear door lock will not operate at all. I would check the switch for moisture in the rear boot window as a first step.

 

Keep me posted!

pS every time a door is operated the rear screen wiper activates!!!!

 

 

i had this problem as well.

it was due to the switch on the inside of the tailgate that got corroded. it is really a dead short that happens when you press the button.

i simply stripped it out, in about 5 minutes, stripped it down and cleaned and greased the contacts.

it is not too hard and anyone could do it. there are no fiddly bits that shoot out when you open the switch up.