Infiniti FX Forum banner

41 - 49 of 49 Posts

·
Registered
Joined
·
49 Posts
Having this same problem... all locks,buttons,fobs work normally but try to open the hatch, press button by license plate and NOTHING. Front pass door locked or unlocked no difference. then occasionally it will work on its own intermittently for no reason...

What would be the #1 thing to replace here? Rear hatch actuator? Fuse seems fine and pulling/replacing it does not make it work when it's in the non working mode....
 

·
Premium Member
Joined
·
1,772 Posts
Can you hear the actuator work in the hatch when you unlock it? If not then replace the actuator. If you hear it then the switch is to blame.
 

·
Registered
Joined
·
49 Posts
Can you hear the actuator work in the hatch when you unlock it? If not then replace the actuator. If you hear it then the switch is to blame.
As I said in another thread, it is really odd how the locks/tailgate lock works on this car. The day I posted this with any combination of doors locked ..unlocked opened /closed... the rear gate would not actuate.... no noise, no nothing, just a dead piece of spongy rubber.... messed with if or 20 min and gave up assuming something was broken...

Next day come out, click the fob to unlock and the gate opens 1st time every time except when all locked is pushed. I couldn't get it to miss the next day. Over the 60 days I've owned it, it has worked right about 90% of the time. ALL door actuators/locks still work perfectly and flawlessly.

I think it has a gremlin, but I don't know how to attack or even define when it will happen.....>:D
 

·
Premium Member
Joined
·
1,772 Posts
You might have a partially loose connection at the actuator or, and this is difficult to find or fix, a partially separated or kinked wire between power and the actuator..
 

·
Registered
Joined
·
7 Posts
That happens all of the door actuators. It because of the cheap DC motor.

Brushed DC motor has a limited lifetime that caused by 'brush'

Once the brush getting shorter, DC motor start to having a problem.

I have experience with the rear hatch door lock, I simply open the DC motor and clean up the contact of the brush part.

You may check the following link.

https://www.infinitifx.org/13-1st-gen-2003-2008/35393-fx35-rear-hatch-issue.html
 

·
Registered
Joined
·
49 Posts
What did you clean it with? Contact cleaner? Did you clean out the housing you pulled off too, or just the shaft/commutator?
 

·
Registered
Joined
·
21 Posts
Thanks for the FUSE info!



I think it's on this site somewhere. Try Googling "Infiniti FX door actuaters" and scrool down. Plenty of discussions.



There is a tiny part that suffers when the cars get hot. Mine work great in the winter and just now are crappying out. It's a lot less work to lean over and pop the passenger door [no kids so rarely need to get in the rear] than replace them. When it cools off the locks will probably work great again.


Oh, and the gas door craps out. There is an access panel on the right side of the rear cargo area. If your fuel door won't open - HEY !!! You can't put fuel in! exciting... So, listen up kids... Pull off that panel.. have a flashlight and expect to get your hand dirty... You need a flashlight to see it. You have to look inside and slight UP to see it. But there is a small shaft that connects to the gas door release. Pull that rearward and- OPEN! Yes.. fun. I was going to replace that actuator, then realized it was easy to get to once you knew how to reach inside and up and pull on it. I tried lubricating it..and ended up with more of a sticky mess and a door that never opened without manually pulling the shaft rearwards. Then I got smrt, and cleaned up the inside of the gas door/filler area.. and particularly the small latch. It's plastic. Once I got the area and latch realy clean- suddenlhy NO more gas release issues. Now that i wrote this up it will probably die for good.


BTW, if your door locks all fail just pull out that little emergency key from the remote. A lot of people don't realize it's there and has a "real key" inside. Pull it out, stick it in the drivers door- you know, old school. You can do the same with the ignition too. I went through all this with my wife. [Not a car person but willing to learn things.] If she can do it, you can do it. She CAN do it!

Have fun--and you should be able to find videos of all this stuff using a Google search + You Tube.
 

·
Registered
Joined
·
1 Posts
I have the same thing on my 45. All I did is took out the fuse for the rear hatch and plug it back, sound silly but it works all time. It has been my 4th time so far. Good luck.
this just worked for me. (2003 fx45) I'd replaced the actuator and it still wasn't working. pulled and replaced the fuse and it instantly worked. it had been acting up off and on before the replacement and eventually stuck in the open latch position. was able to get it to latch using the physical lever inside and then it was stuck closed (but at least latched!). after the actuator replacement and fuse trick its working better than ever.
 
41 - 49 of 49 Posts
Top