Question about 2005 Infiniti QX56

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QX56 is showing key lock signal on dash that wont come off, when in ''on Position. The fan will start making noise to show that the fail safe has kicked in.the car will crank but wont turn over. how do i disable this security setting for a 05 QX56???

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Posted on Jan 02, 2017

  • 93 Answers

SOURCE: 2007 infiniti qx56

It sounds as if you are having a battery problem. You need to have the battery checked at an Infinity Dealer. The battery should have warranty on it (pro rated) with such a new vehicle. Hope this helps.

Posted on Sep 18, 2008

  • 82 Answers

SOURCE: security on. car wont crank. can trun key wont

verify that you have a fully charge battery and that you have the same amount of voltage at the battery as at the starter when the key is turned to the start position. If not repair fault at positive cable either at battery or at starter. If voltage checks good. Use a remote starter and turn key to the on position and try to crank over engine with remote starter. if engine cranks over. You have a defective starter solenoid and starter must be replaced.

Posted on Mar 26, 2010

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SOURCE: car makes a clickking noise when i turn the key

you have a bad starter

Posted on Apr 25, 2010

  • 1 Answer


Had the similar problem last night with our 2005 Infiniti QX56. After a day of normal driving and performance, the car would crank and crank like normal, but would not fire and seemed like maybe the fuel pump was out. My wife and I tried several things and then resorted to calling the Dave Baldwin from Best Deal Auto Sales of Auburn, Indiana and he had me go out and perform the following sequence that I chuckled at as we went through the steps:

1) shut all doors unlocked
2) lock the car with the key from the outside of the vehicle
3) lock the vehicle with the fob by pressing the lock button
4) unlock the vehicle with the fob by pressing the unlock button
5) get in and start the car

To my amazement, it worked!!!!! It is only just over a week old vehicle for us and even with the 8 years+ of college, the Infiniti and Dave are each much smarter than us ;-) See if it works for you!!! I am not certain of how or why it worked, but Dave said that their is a securtiy feature that disables the fuel pump and will not allow intruders to start the QX56. He said the most common way to have this happen is in the summer when it is typical for someone to lock their car with the windows down and then unlocks the vehicle by pressing the unlock button from through the window...Although this was not the case with us, maybe it will provide some insight. So far no other forums I have been on has provided this as a solution.

Posted on Nov 23, 2010

  • 123 Answers

SOURCE: when i lock the door with the key a security light

You must use one of the factory keys.. A copy will not work. The key has a transponder that talks to the security system in the car and validates the proper key. If this is a factory key there is a problem with the pickup ring in the ignition or some other part of the drive authorization system (or whatever Nissan calls it) that the dealer will have to look at.

Posted on Jun 08, 2011

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My 2004 qx56 remote got damage the other day soo i have been using the key but then suddenly the engine is not responding to the key and then key wont come out of the ignition what should i do?

You will need to see the dealer on this, here is why, your security system is locking you out. The remote sends a signal to the cars computer and lets it know you have the right key signal. So no remote no start or key removal.

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Security lock problem wont turn on

The security lock picture/icon is a visual indication that something in the car's antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM (Theft Deterrent Module). These 3 parts are in CONSTANT communication. If the key is in the ignition, then these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car misinterperates this as an attempt at theft and goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key. This is why the security light turns on and shuts down your vehicle. This link explains it pretty well.

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Theft service system wont let vehicle start

Generally speaking, if the security light is on and the engine will not crank, the VATS system is not reading the chip in the key.
Either the chip has failed, or the sensor in the lock cylinder, or the VATS module.
You could try a spare key but most times you have to have a shop make the repairs.

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Engine turns over but there is no power to ignition coil from ECM/car's computer and computer shows no error codes

the ignition coil should have voltage and ground anytime the key is on. it will also get a signal from sensors that tell it when it needs to do its job.
if any one of the sensors fail, the car wont start. first of all , if you dont have power, check your IGN fuses, and then check them again. if that dont work. check all ur fuses.if theyre good, your looking at hall effects sensors, camshaft position sensors and crankshaft position sensors. any of them fail.......your car wont know when to fire.

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2000 grand am overheats when the car is idle when

If you have A/C, turn it on. The fan(s) should come on immediately. If nothing happens, check that the fan(s) turn freely by hand and don't make any noise (from a bad bearing). Also check the fan relay and fuse. If the computer has a problem, it should show that it has one when a scanner is hooked up to it. The temperature sensor sends a signal to the computer and the computer tells the relay to turn on the fan(s).

Oct 20, 2009 | 2000 Pontiac Grand Am GT

3 Answers

My car won't start, I turn the key and absolutely nothing happens, no crank, no noise whatsoever. The lights work, the radio works, the fan comes on, the only thing I noticed was when I check the battery...

try shifting it to neutral then see if it will start if it does then you have a bad gear position switch if not could be a bad starter or ignition switch

Oct 12, 2009 | 2001 Buick Park Avenue

3 Answers

1999 A4 audi 1.8T

Hi A J Mae,
Do you mean the traffic indicators,( turn signals) or do you mean the dash board indicator lamps? If it's the dash warning lamp indicators, they work on a fail safe system, when you turn the ignition on before the start position, all the lights will come on untill start up and ten they will go off automatically within a second or two....if they stay on with the engine runnig you have a problem we have not covered here.
That will be your hazard warning switch, the one that will be flashing on the dash with a triangle showing on it....If that doesn't do it it'll be something to do with the anti theft device...get out of the car lock all the doors and then press the button on the key fob
Regards Johngee10

Aug 01, 2008 | 1999 Audi A4

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