Hi

The electric trunk lock opener stopped suddenly working in my X300. The fuse and relay are checked and working. Neither the switch inside nor outside opens the lock. The lock opens with the mechanical key only. So, some electrical problem somewhere, I assume. Does anyone have a hint, where to start looking or how to repair?

Thanks already in advance.

 

I would try to directly feed the actuator from the battery to check if it works.

 

Electrical guides come in 'handy'.
The diagrams are meant for exactly this.

JagRepair.com - Jaguar Repair Information Resource

 

I would look at the harness in the trunk hinge. Likely a wire has fatigued in the flexure. The actuator lives in the trunklid.

 

Thanks for everyone for the support.

 

There was something about the linkage wearing between the actuator and the latch

There was some good pics in some post

This assuming the actuator does work and the wires under the curved plastic cover on the car's right trunk hinge not worn / damaged ( common from reading )

Your wire colors are X and Y

Someone made a video

 

Thanks again for everyone. I could fix it today. The problem was the earth connection of the actuator. I put a new wire from the actuator to the ground, and it fixed the problem.