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System Malfunction

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#21 ·
For some reason my car wouldn’t start this afternoon. And I had the same malfunction lights ON as you have in the 1st pic. Put a meter on the Battery and it was only putting out 8.8v. Jumped the battery and everything fine. Started it twice afterwards through out the day without problems.
Was wondering why Battery would lose charge like that? Didn’t leave dome light on or anything. Came to search the forum and lo-and behold on the front page is a similar problem. lol
 
Discussion starter · #22 ·
I had gone through the same thing, car wouldn't start then I would throw it on the float charger overnight and it would be fine for a week. It happened a few more times and I was like that's it I'm getting a new battery. In hindsight, I should not have jumped the gun so quick because the battery shop tested the original Nissan battery and said it was not the issue, stating the plates & charging were good. Car has been starting fine since the new battery, but now it looks like I may have to get the computer reconfig'd for the system malfunctions. Waiting on shop to confirm/fix.
Let me know how it goes and check your terminals, something which I may have missed on mine. Also, check battery when car is running to make sure alternator is pushing 14.25 volts.
 
#25 ·
It's unusual to get any warning lights after a dead battery unless you're unlucky enough that something loses its configuration. However, down around 8~9 volts everything in the car will begin to malfunction and squawk. If you get your car scanned with a high end shop scanner after a deep discharge, there will be at least a dozen (maybe several dozen) "past" codes in systems like the BCM and IPDM that a regular OBD reader can't see. The codes don't mean anything and won't turn on any lights, but the evidence will be there.
 
#26 ·
Yeah, I think I’m going to have to bring into a mechanic to figure this out. Also noticed that my TPMS and other settings on dash don’t work while I’m driving. But as soon as I come to complete stop, I’m able to scroll through all the settings again.
Image
 
#27 ·
I don't think you're supposed to be able to change settings while in motion, that's a safety thing. I think you can only scroll through existing screens, but not change settings.
 
Discussion starter · #29 ·
Update: I brought the '20 Altima local auto body shop, he said he deals with recalibration stuff all of the time and has a company that comes in and has certified scanner for Nissan. That company said It's pulling a code that is not listed and Nissan doesn't have anything for the code either, they suspect that the module is bad behind the front grill and is quite expensive to replace. He even recommended reaching out to my insurance company, which I don't think is going to cover something like this.
 
#30 ·
Tell me what the code is and (if possible) what system it's showing up in. If I can't find it anyplace in Nissan ASIST, our DTS or TSM will probably know something, and if they don't, they'll be very interested and probably kick it to Japan.
 
#34 ·
Have been having the same exact issues with my 22 Altima. Actually posted about it on a couple of threads here. Thankfully it’s a lease but the battery died and I replaced it and now the battery is losing charge again at times.
 
Discussion starter · #35 ·
Update: I started the car this past Monday and everything was back to normal with the ADAS, no more system malfunction messages and everything appears to be happy. Not sure what happen or why it took so long after replacing the battery on 9.23.23
 
#36 ·
Drenzio said:
Update: I started the car this past Monday and everything was back to normal with the ADAS, no more system malfunction messages and everything appears to be happy. Not sure what happen or why it took so long after replacing the battery on 9.23.23
Click to expand...
Just about every DTC has a Self-Readiness Test (SRT) that will clear it (or at least make it go "past") after it hasn't reoccurred for awhile. For emissions DTC's they tell us what the SRT algorithm is, but for electrical stuff outside the engine and tranny, they leave us guessing. Your ADAS probably just went through enough error-free startups that it unscrewed itself.
:) (y)
 
#39 ·
I’m having the malt function issue with my 2019 Nissan Altima… it comes on for a while then it goes away , then it comes back again, I’m not sure what cause it … need help
 
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