Mechanics

DOOR LOCKS INOPERABLE

1998 Nissan Quest • 14,000 miles

1998 Nissan Quest, 140,000 miles: It has a remote keyless entry which I just found out has had intermittent problems, but my wife has always been able to enter the van with the key. She set the alarm last night and now this morning we cannot get the doors to unlock with either the remote or with the key. I have tried every lock and the key and spare will not budge in the locks. The battery appears to be dead as her phone charger normally lights up but is not lit now. Can a dead battery cause the locks not to operate?Thank you, Joe
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Naches
January 11, 2012.



A dead battery would not allow the power locks to work but by using the key, it should work.

KHLow2008
Jan 11, 2012.
I agree. That's what several mechanics have told me. I tried both keyless entery remotes and both keys. The key goes into all 4 locks but will not turn at all. Not sure what to do other than a slim jim. She has been able to get in previously using a key. Did not get cold enough for the locks to have frozen either.

Tiny
Naches
Jan 11, 2012.
Try wiggling the key to see if they works. Hope you have not used the wrong key.

KHLow2008
Jan 11, 2012.
I am not currently home, but first thing this morning I did just that. Both the regular key and spare went all of the way in, but would not turn at all. I tried both keys in all four locks (driver side, front passenger, passenger sliding door and rear lift door). One mechanic suggested frozen locks, but we have had heavy frost in the past and this didn't happen. Cold breeze today, but no precipitation or frost. I am certain they are the right keys due to their shape and size.

Tiny
Naches
Jan 11, 2012.
Are you sure you got the right key or vehicle?

If the keys works normally, this present problem does not make sense.

KHLow2008
Jan 12, 2012.
The keys actually did allow you to open the glass half of the back hatch. I climbed through, unlocked the doors and popped the hood to jump the battery. The cause of the dead battery was headlights left on. The van started, the remotes worked and still the keys would not turn in any other lock. The battery tested bad (not enough amps) so I replaced it, started the van, hit the unlock on the door and heard a different noise. Tried the keys and they now work in all of the doors and the bottom of the lift gate opens now. A dead battery was the cause, even though I was told a key would override the security system but 3 mechanics, including a Nissan certified mechanic. It has some kind of a deadlock feature built in I guess. The onle change was the car battery. I have not seen this problem or cause any where ion the internet. It is an original, factory installed security system. Maybe ours was just wired differently. I just know to expect to have to climb through the van next time it has a dead battery. I did turn off the headlight delay since the little alarm wasn't enough to alert that they were still on.

Joe

Tiny
Naches
Jan 12, 2012.
The system does not lock the doors and not allow the key to operate the lock. The only possibility I can think of is that while the battery was draining away, the actuators got stuck and froze and this would not allow you to use the keys to unlock the doors.

The possibility of this occurring to all the doors is rather slim and when you use the unlock button, you mentioned a diffrent noise, that could indicate the actuators were stuck and the noise indicates they had been worked loose.

Anyway glad to know you have fixed the problem and this is something new we have learnt.

KHLow2008
Jan 13, 2012.