Question about 2007 Infiniti M35 Sport Sedan

My 2007 infiniti m35x will not read my key fob. i am able to unlock the doors, truck (battery should not be an issue) but car wont start...even when i insert into fob port hole, it wont start.

1 more comment
manny2415 Sep 04, 2011

the fob still opens the doors and trunk remotely, so it cant be damaged or a battery issue. besides, the car should start when I place it in the fob slot in the dashboard...i even tried my spare fob and the same results.
manny2415 Sep 04, 2011

nothing happens ...cars display says no key
Anonymous Mar 19, 2014

does not recognize key fob but does start car when inserted in slot. Checked batteries on both fobs they are above 3 volts.

1 Answer

David Burbee

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Infiniti Master
1,871 Answers

Hello! There is a Technical Service Bulletin (TSB) #12--8-2008 "Inoperative Key Fob"...It addresses a water intrusion issue...The Fob is more than likely damaged due to moisture...A TSB isn't a recall merely a notification of a problem...I would suggest opening the Fob and inspect for any green material in and around the battery contact area....Send a comment with results...Guru...saailer

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Posted on Sep 04, 2011

3 more comments
David Burbee Sep 04, 2011

Hello! And thank you for your reply...I needed to eliminate the Fob TSB up front...Please clarify for me; When you say it won't start does the starter motor crank the engine over or is there dead silence?

I am here!.......Saailer
David Burbee Sep 04, 2011

Hello! Thanks...I am working on your problem...I will respond in less than 25 minutes.....saailer
David Burbee Sep 04, 2011

Hello! The Intelligent Key Unit...IKU... (located drivers side near your left foot) is either faulty, or not receiving proper input..Do you have a mulitimeter and a wee bit of experience using it? after checking a fuse, you will need a meter to localize the fault...I will provide instructions on it's use and act as a facilitator to resolve the fault...The problem is either in the key slot module or in the IKU... #1....Check fuse #22 (10A) in the junction box...If good I'll send an easy test to localize...Send a comment ...saailer
David Burbee Sep 04, 2011

Hello! There is an easier softer way to a solution...If the fuse is good and the display is telling you it does not see a key then the key slot module is the faulty component...The push-button ignition switch is operable when the Intelligent Key is within the detention area of the interior antenna or is inserted to the key slot. The Key slot is a dealer item...
Conclusion...If fuse #22 is OK then the solution is to have the key slot module replaced...Saailer
David Burbee Sep 10, 2011

Hello! Have you had a chance to replace the Key Slot Module?.....Saailer

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