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Old 12-13-2014, 07:31 AM
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Rear liftgate sensors

Hi,

Does anyone know where the rear-liftgate sensors are located exactly? Since having my rear bumper replaced after a minor bump the sensor which stops the auto tailgate closing when something is obstucting does not seem to be working (i.e. stick your hand/arm under the tailgate when its coming down and it just keeps going). Just wondering if this is just coincidence or if there is something in the rear bumper (or related to the recent replacement) the body shop has failed to reconnect. It wouldnt be surprising since they failed to connect the blindspot sensors which are now permanently lit up and beeping everytime I indicate.

Cheers!

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Old 12-13-2014, 09:46 AM
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Re: Rear liftgate sensors

Robert I'm not sure about the Grand's boot door, however these safety mechanisms usually work on overcurrent sensors on the actuator power circuit. When you force them to slow down, the current rises, the system detects this and either terminates or reverses the drive.

So if you solidly stop your door as it's closing, it'll just keep hauling in? Absolutely no chance of stopping it? What about coming out???

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Old 12-13-2014, 07:20 PM
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Re: Rear liftgate sensors

Thanks for the reply. I just checked. It takes a fair bit of force to stop it coming down, if you really give it some resistance it will stop and reverse direction. However, I seem to remember when we first got the car I has some fishing rods in the back, one slipped down as the boot was closing and the tailgate stopped before it even touched the rod I think. Im going to have a look in the manual to see if anything in there about it. Maybe just being paranoid. Anyway its going to Jeep Monday to fix the bits the insurance repairer failed on so will also check with them.

edit: just found this in the manual: "There are also pinch sensors attached to the side of the
liftgate. Light pressure anywhere along these strips
will cause the liftgate to return to the open position".
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