tvspaulmoore
Posts: 26
Joined: Thu Nov 05, 2015 11:04 am

Re: T/M Vehicle System Malfunction Warning

Thu Jun 11, 2020 4:07 pm

I echo these thanks- had same issue today and panicked that I would need to get a tow to dealer (car wouldn't start in driveway) but went to Costco and replaced the battery myself following the instructions!

This forum is awesome

JohnnyRockstar wrote:
Sat Jan 04, 2020 10:01 am
Thank you DaveinOlyWA and everyone else above! Problem solved!!!


Like many posters, my 2013 Nissan Leaf got this error code all of the sudden: "T/M Vehicle System Malfunction Warning. See dealer." The car would turn on as if I had not pressed down on the brake (wouldn't drive, but radio, etc. worked) and the brake pedal actually felt like it had retreated so that trying to turn the car on felt atypical and was actually not possible. Basically I was stuck in our garage and on the edge of calling to tow it to the dealer.

...

I took the 12v battery out. Took it to Costco (just like Dave above) and for $82.67 had a new replacement battery in hand (Costco keeps the old one). I installed the new battery and everything is all fixed and working!!! Yippee!

From first reading this forum to a fixed car was about 1.5 hours total (7:00pm - 8:30pm, including driving to and from a Costco in our other car) and $82.67, and I know almost nothing about working on a car, car batteries, or anything else mechanical. If I can do it, so can you. ;)

Based on some other reading, the 12v batteries last about 5 years or so. The new one I purchased says it has a 3 year warranty. The original battery in my 2013 Leaf was going on 7 years old, so it all kinda makes sense in the end.

Thanks, everyone!

drfrisker
Posts: 5
Joined: Sun Mar 08, 2020 9:52 pm
Delivery Date: 03 Mar 2020
Leaf Number: 004062

Re: T/M Vehicle System Malfunction Warning

Thu Jul 16, 2020 3:31 pm

Having this warning message come up today-Thursday.

Tuesday I had a VA state inspection done.
Wednesday it acted like a car would if it had a dead battery. Checked and the negative/ground battery lug was loose. Moved it a little and it got me home. Tightened the lug by imprinting it a little with a screwdriver and hammer.

Thursday car started up and got to work fine.
Leaving work today, I got the same sort of behavior as Wednesday, but this time with the t/m message.

Cycled the button a few times and checked the battery terminal again(still tight). And it turned on normally and I got home.

The 12v battery is dated 02/2018. It shouldn't need replacement at less than 2.5 years(Gold). I'll report back if it crops up again. I'll replace the battery terminal if I can find a p/n somewhere since the one on the car is maxed out.

cwerdna
Posts: 11015
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: T/M Vehicle System Malfunction Warning

Thu Jul 16, 2020 11:51 pm

^^^
Measure the voltage of the 12 volt after it's sat overnight or when the car's off and you hit this bad state of not being able to go READY mode (green car with arrows).

'19 Bolt Premier
'13 Leaf SV w/premium (owned)
'13 Leaf SV w/QC + LED & premium (lease over)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

LeftieBiker
Moderator
Posts: 15330
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: T/M Vehicle System Malfunction Warning

Fri Jul 17, 2020 1:56 am

Lead acid batteries can be damaged or even ruined by being run dead or near to dead - just once to dead can do it. I'm not saying that this happened in your case, but it remains a possibility.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

drfrisker
Posts: 5
Joined: Sun Mar 08, 2020 9:52 pm
Delivery Date: 03 Mar 2020
Leaf Number: 004062

Re: T/M Vehicle System Malfunction Warning

Sat Jul 18, 2020 4:00 pm

cwerdna wrote: ^^^
Measure the voltage of the 12 volt after it's sat overnight or when the car's off and you hit this bad state of not being able to go READY mode (green car with arrows).
Measured today after sitting for almost 24hr, 9.97v, I still got the go ready mode when powering the car up. :(
LeftieBiker wrote: Lead acid batteries can be damaged or even ruined by being run dead or near to dead - just once to dead can do it. I'm not saying that this happened in your case, but it remains a possibility.
How does it run dead on a modern car? My other two vehicles never kill batteries under 4 or 5 years old.

LeftieBiker
Moderator
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Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
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Re: T/M Vehicle System Malfunction Warning

Sat Jul 18, 2020 6:06 pm

The Leaf can run the battery dead by drawing power from it and then not adequately replacing it. This happens often when the car is left plugged in for days after charging ends. It can also be a more chronic condition that takes months to drain the battery. I'm surprised that you were able to get Ready Mode! Anyway, first you have to see if there is a "vampire drain" like a Bluetooth dongle left plugged in all the time, or a relay sticking open and powering a subsystem when the car is off. We have several topics on the subject. I'm a bit under the weather, but I'm sure someone will link you with one or more of them.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

cwerdna
Posts: 11015
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: T/M Vehicle System Malfunction Warning

Sat Jul 18, 2020 6:12 pm

drfrisker wrote:
Sat Jul 18, 2020 4:00 pm
cwerdna wrote: ^^^
Measure the voltage of the 12 volt after it's sat overnight or when the car's off and you hit this bad state of not being able to go READY mode (green car with arrows).
Measured today after sitting for almost 24hr, 9.97v, I still got the go ready mode when powering the car up. :(
LeftieBiker wrote: Lead acid batteries can be damaged or even ruined by being run dead or near to dead - just once to dead can do it. I'm not saying that this happened in your case, but it remains a possibility.
How does it run dead on a modern car? My other two vehicles never kill batteries under 4 or 5 years old.
Thanks! Just as I suspected...

FWIW, the 12 volt that came in my used '13 Leaf (built 5/2013) that I bought in July 2015 bit the dust in Oct 2015. I got it replaced for free by a local dealer under 3 year/36K warranty.

Unfortunately, its replacement bit the dust after the 100% free replacement period, so I bought a replacement from Costco for less $ than what the dealer wanted. I posted about this at viewtopic.php?p=572068#p572068.

At least on '13 Leafs, the 12 volt charging algorithm seems poor.

'19 Bolt Premier
'13 Leaf SV w/premium (owned)
'13 Leaf SV w/QC + LED & premium (lease over)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

LeftieBiker
Moderator
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Joined: Wed May 22, 2013 3:17 am
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Re: T/M Vehicle System Malfunction Warning

Sat Jul 18, 2020 6:46 pm

It's worth noting at this point that sometimes replacing the OEM battery with a larger capacity AGM type battery will solve or lessen the undercharging issue. It may be because the car's charging algorithm works better with more available capacity. The configuration needed is 51R. Make sure that the new battery - of whatever type - is FULLY charged either before or right after installation, using an external charger.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

drfrisker
Posts: 5
Joined: Sun Mar 08, 2020 9:52 pm
Delivery Date: 03 Mar 2020
Leaf Number: 004062

Re: T/M Vehicle System Malfunction Warning

Sat Jul 18, 2020 8:03 pm

Looking at either a Deka ETX-30L (have one of these in my gasser, going on 4 years with it) or considering a li-ion antigravity battery w/restart (one of these in my motorcycle)

LeftieBiker
Moderator
Posts: 15330
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: T/M Vehicle System Malfunction Warning

Sat Jul 18, 2020 9:46 pm

The Deka would work, but the relatively small capacity would likely cancel out the advantage of it being AGM. Some people go with small lithium batteries, and seem to be happy with them. My opinion is that it makes more sense to spend half as much for an AGM with two or more times the capacity of a small lithium battery.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

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