VXOC Astra-J/GTC

Hi All

The tailgate latch on my Astra J 1.7 CDTI estate has packed up and doesn't respond to me unlocking the car either with the remote key or using the switch on the facia panel.

Thanks to a post on this forum, I was able to unlock the tailgate from inside the car which got me out of trouble.

I checked the fuse (assuming I checked the correct one) and it seems fine.  In any case I can see 12v on a couple of the pins in the connector that plugs into the lock mechanism.

I took a punt and bought a secondhand lock mechanism on eBay (looks good condition), but after connecting it up, the lock is still not operating :-/

I'm now wondering whether the body control module might have gone faulty, but I'm not sure how I can check this out.  All other aspects of the central locking work OK, so I was guessing it wasn't at fault, but perhaps it is.

If anyone knows what voltages I should be seeing across the three pins of the connector plug with the lock activated and deactivated, it might be a good next step to check these.

Thanks in advance for your help.

Cheers

Graham

Hopefully the attached .PDF will help you.

You may find if get it connected it may have a error code stored which will help point in the right direction for a starting point rather guessing at things.