Modification: Emergency release for the rear hatch

https://www.freel2.com/forum/topic36840.ht...rear+hatch


"Only the paranoid survive" A. Grove

Take care

Paul

IanMetro wrote:

FL2-DM wrote:

Tailgate dead . Won't work on dashboard switch not fobs. No noise no clicking just dead. Not fuel cap either. In dahboard it say tailgate open. Latch and switch is new.
I suspect something with power or broken wire. Fuse F25 is OK.
Tailgate is open and dismantled. Have mesured and have no signal here.
I will try to put some signal/power in to the wires to se if message in dashboard change or something works. Have the electric chema, but not sure if they should be feeded with 12 v pluss or minus.
Someone knows?

Have you tried to see that 12v is definitely available at F25 as that seems to be the last common point in the power system. From there they go to separate relays and operating signals.

Have you downloaded the Repair Manual and Wiring Diagrams

https://www.freel2.com/forum/topic10621.html

Page 3090 (of Wiring Diagrams) has the information you require.

F25 is fed via FE17 in Battery Junction Box from Battery.

I can see that electronic logic plays a part in what will work, however as you are working on the Tailgate Latch I suggest you start rechecking there.



 FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 82k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)

IanMetro wrote:

FL2-DM wrote:

Tailgate dead . Won't work on dashboard switch not fobs. No noise no clicking just dead. Not fuel cap either. In dahboard it say tailgate open. Latch and switch is new.
I suspect something with power or broken wire. Fuse F25 is OK.
Tailgate is open and dismantled. Have mesured and have no signal here.
I will try to put some signal/power in to the wires to se if message in dashboard change or something works. Have the electric chema, but not sure if they should be feeded with 12 v pluss or minus.
Someone knows?

Have you tried to see that 12v is definitely available at F25 as that seems to be the last common point in the power system. From there they go to separate relays and operating signals.

Have you downloaded the Repair Manual and Wiring Diagrams

https://www.freel2.com/forum/topic10621.html

Does your Number Plate Lamp light up, its on the same earth as Tailgate Latch? (G4D149-1)

The relay feeds Latch via a Wight - Orange wire.

Latch AJAR signal is fed back via Yellow - Orange wire.


 FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 82k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)

FL2-DM wrote:

Ok so now we have 12 volt to F25 and fuel cap is working. But still no 12V to tailgate lock if we use key or button. But open if we put 12v direct on the wire on lock.
Must be broken wire or something with relay-tailgate r278. Can’t find it, could it be integrated with something?