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Now that I think about it, the ABD is most likely throwing codes for the spindle encoders (position sensors). The inputs may be "floating" with the spindles unplugged, causing false movement signals that accumulate into a problem. Grounding the encoder wires at the spindle connectors should cure that. I'll get you some connector and wire color information this afternoon.
 

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Here are the spindle connectors in your roof. The diagrams are from the "Harness View", i.e., the side where the wires enter the connector:
LEFT - You want to ground the White and Blue wires at pins 3 and 5:
Schematic Font Floor plan Engineering Parallel

RIGHT - You want to ground the Red and Sky Blue wires at pins 3 and 5:
Rectangle Font Line Parallel Pattern

I think that will most likely solve your problem. I hope so, because the Manual hatch is BCM-driven so you don't have options that won't mean significant rework or bodging.
 

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Thanks again Vstar. This is all new to me unfortunately... so I have some silly questions.

How do I gain access to the wires from the Harness side? I'm guessing that the wires I see sticking out are past the rubber seal are not the ones I should be working with, and the harness connectors are hiding behind the rubber seal?

Left = driver side?

Once I gain access to the wires and strip them to reveal the colours, how do I go about to ground them? Is this something that can be reversible if I do end up wanting to add power struts back (say if I were to sell the vehicle).

Appreciate your help on this
 

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Yes, driver's side is left. The back of the headliner needs to be dropped slightly to access the connectors, and that isn't so simple on a Rogue. You might want to get some professional help for that, or consult the service manual (it's pretty much the same operation for '14~'20, so a manual from any of those years will suffice). The easiest way to handle the wiring and preserve the connectors for the future is to pull what's left of the spindle wires through the grommet. You can then use them as a pigtail that mates with the harness, and you can put the grommet back in the hole and seal it with RTV silicone so it won't leak. Grounding just means attaching to the metal of the car, and it doesn't matter where you attach. The entire chassis and body is "ground". You could actually do it outside the grommets except Nissan doesn't specify the wire colors of the spindle wiring, that's arbitrary and is determined by the spindle manufacturer. So there's no way to determine which wire is which without dropping the headliner to see the harness connector.
 
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