Power Lift Gate will not raise or lower.

Asked by Rusty Oct 09, 2023 at 05:55 PM about the 2012 Mazda CX-9 Grand Touring

Question type: General

PLG unlocks but does not open, have to open manually. Depress the
advanced Key fob or the PLG button and only get three beeps when
attempting to close; closing manually the lock takes over and secures the
PLG. 750 CCA Duralast battery is good with scan tool. Any thoughts

2 Answers
307,235

Gene answered 6 months ago

These are complex systems, one little voltage problem and they are messed up, so if the battery was replaced without using the saver tool that plugged into the OBD 2 port then you have to go to the dealer and have it reprogrammed back into the onboard system.

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202,385

Ed92626 answered 6 months ago

Your owners manual coves this over about seven pages. Could be the liftgate latch fuse or the latch or latch motor, especially in a van that's over ten years old. If there was an electrical interruption, it might just need to be reset. If you don't know cars, have a mechanic address this, it's not likely due to damage, like failure of a part.

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