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Old 11-19-2022, 05:17 PM #1
mandomaniac mandomaniac is offline
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mandomaniac mandomaniac is offline
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Join Date: Dec 2010
Posts: 2
mandomaniac is on a distinguished road
2004 Rear Door Locks by Itself !

2004 Limited rear door would not unlatch today. Searched and found solutions to get the door open. First took hatch inner cover off, carefully removed vapor barrier, popped off a plastic cover which exposed the two levers, and got it to open. Lubed everything, reassembled….no success. Still locked when closed and wouldn’t open. Then pulled 10A fuse for ECU-B. Waited 10 sec to reset ECU-B then replaced fuse. Locked everything with fob, then unlocked everything with fob. SUCCESS …rear door was unlocked and could be opened. Closed and opened it several times. Then I noticed it made a locking noise after closing hatch. ARRGH...locked and wouldn’t open! Repeated reset of ECU-B and it would open. But again..seemed to lock itself when closed. Locking/unlocking with fob did not make a difference. Side doors operated correctly….hatch stayed locked.
So is this a programming issue or a faulty ECU-B??? Definitely don’t want to spend a couple hundred dollars if it is not a bad unit.
Any guidance would be appreciated. Thanks!
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