Back hatch only unlocks after the car shifter goes from drive to park, then all the locks open. i activate the handle and the door opens. If i close again the door will not open with the key fob or the master switches on the front doors. already replaced the rear hatch selonoid lock mechanism. Very frustrating. I read on a different site about a relay under the hood for the rear hatch. As I searched through the owners manual there is no listing for that. Mark
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Rear hatch is locked or unlocked with a key. (if equipped) • To open the rear hatch, insert the key into the lock, turn it to the unlock position and pull up the rear hatch by pressing the handle (DOOR). You can also lock/unlock the latch (but not release it) with the central door lock system. • If unlocked, the rear hatch can be opened by pressing the handle (DOOR) and pulling the hatch up. • To close the rear hatch, lower and push down the rear hatch firmly. Make sure that the rear hatch is securely latched.
Not sure about your car, but on my Chrysler mini van the same problem happened. The problem was not the motor but the body control module. The unit had 2 relays, but the BCM actualy controls the unit. To replace the BCM was $450. I bypassed the problem by installing an on/off switch inside the car and activated the motor by by passing the BCM at the relay. That was 3 years ago, still works great. Your BCM may be the problem. Check the schematics of the relays and try doing the same.
If you don't have the manuals, your local library has online access to most service manuals that you would have to pay for. Many time you can get access to them through their website if you have a library card. If not, go the library and get full free access to all the major car service manuals for free!
My back hatch would not open but it appears the lock was sticking and the return spring to the handle is broken. We used the key to unlock the back door and then door opened. Then husband sprayed WD 40 in all the lock holes. Now once we open the door we have to push the handle back down as return spring is still missing but the door opens :) . My van is a 2002 Ford Windstar.
you may find that the rod that goes to the latch and the handle has fallen off, causing the door not to open. what you can do is try take the door card off with rear hatch still closed, and try to re attach it
With key in hand,hit power door lock switch to lock. Raise release handle & lower. Hit power door lock unlock raise & lower handle. May take a couple times is stuck in limbo between lock & unlock mode.
You need to climb in the back and remove the plastic panel from the hatch to access the lock. There may be a small access door over the locking mechanism to help you avoid removing the whole thing. Could be dirty and sticky and fixable with a bit of graphite lube.