2k3, thanks.
I put 12v DC across the red and blue wire in the connector and got actuator action in one direction. I refersed the polarity and got the other direction.
So that says the actuator is OK.
I did check the fuse (I believe it is #8 on the interior panel.)
I do have a constant door ajar warning light that is due (I think) to the contactors on the RHS sliding door. I don't know if that warning would deactivate the rear hatch lock.
I think I read somewhere that the rear hatch lock runs off of some "rear module." If thats the case, the problem could be that.
I will have to check the leads to the rear hatch for abrasion. I'm thinking your talking about the flex wires that are along to top edge closer to the RHS hinge?
Thanks
Tom