2003 MUrano AWD SE
To start, the battery, alternator and charging system are all fine.
Had pulled in somewhere to eat and watch a movie, as I've done many times before. Finished up, ignition key was already at the first position, went to start MO and a few "dummy" lights came on, one being the battery, and it was very faint and flickering. Figured my battery had mysteriously died.
Used my Everstart portable battery booster and MO started right up. Turned MO off, and the same thing happened...no power to anything, not windows, door locks, etc., and this time when I tried to remove the key from the ignition, I couldn't...the switch wouldn't let go. I had to wait a few seconds and then I felt a click fron the ignition and the key released.
Long to short...over the next few days I experimented with various situations, and 95% of the time MO would not start without a jump. A few times all of the appropriate dummy lights appeared, but when I turned the key to start, every light went out except for those same handful of dummy lights that came on before, then I'd hear a loud, amp-like crackle-pop
through MO's speakers. Whenever I jumped the battery with my booster or using jumpers to another vehicle, MO would fire right up. One time, the car-shaped dummy light with the key icon inside (refer to attached pic) decided it wanted to stay lit/steady after MO was started, when it usually just blinks until the car is started then goes out. I drove for awhile with the light on, and decided to pull over, turn MO off, and do the booster thing again, just in case the security system decided to kill my car after so many miles thinking it had ben stolen. This time when MO started, that car-shaped light turned off.
Went to Nissan with my VIN and was told the immobilzer sensor is the lighted ring around the ignition switch. $285 for the part. I left. Before going home, I replaced the battery in my fob with a new one just in case that made a difference. It didn't. At home, I disconnected both neg/pos leads to the battery and removed the brown valet key that had been in my glovebox for about six months, and placed it inside my toolbox in the garage. Note: while eating lunch that day, I had rummaged through the glovebox and the valet key got relocated to the other side. The next morning, I reconnected the battery leads and MO fired right up. For four days, MO started everytime without the need for a jump.
On the morning of the fifth day, MO wouldn't start. Same results with the dummy lights being on and no power. This time, I decided to remove the neg battery lead for five seconds and then reconnect it . MO fired right up and has started fine for two days. The valet key is in my toolbox about five feet away from where MO is parked. I had moved around some things in my toolboxes, and the valet key did get relocated to a smaller draw the previous night, so.... I'm going to relocate the key at least 20 feet away, just in case the chip in that key is confusing the immobilizer sensor because there are two key chips in very close proximity.
Something else I noticed...whenever I had to jump MO to start it, the clock would always reset to 12:00, but radio stations, trip odometer and such were not affected. Seems strange. However, I did not notice if it was the act of jumping MO or trying to start her that caused the clock to reset. I simply wasn't paying attention to the clock, I was looking at the dummy lights and such.
Anyway...that's what I'm currently paying attention to at the moment. If it happens to any of you, you might try the neg battery disconnect process first. If no tools to do that, do the jumpstart thing. I highly recommend paying $40 and getting an Everstart portable booster/air compressor combo, that way if your get "stranded" in a remote location, you don't have to worry about waiting for someone to drive by to jump you, or worry about no phone service to call for roadside help. That jumper/compressor combo has helped me out quite a bit in the last couple of years, and it's helped out other motorists who were stranded that I stopped to assist.
Anyone else experience any issues like this with their security/ignition system? I'll update from time to time if it happens again, or in a few weeks if things are ok. If okay for a few weeks, I might place the valet key beside MO to see what happens...