stevesoz
Posts: 1
Joined: Fri Jan 08, 2016 11:57 am
Delivery Date: 03 Oct 2015
Leaf Number: 313731

Unable to shift into fwd or Reverse-2015SV

Tue Jan 02, 2018 6:54 pm

I got the "T/M system malfunction" warning this morning, with the battery symbol lit up. It was 7degrees out and I had just removed the trickle charge cable with 100% capacity showing. The shift lever would not engage either forward or reverse but would only go into neutral. Called the Nissan service and they had no suggestions except to have it towed into them. Tried in vain for about 15 minutes, and walked away-returned for another try 15 minutes later and everything was normal. What happened?

cwerdna
Posts: 7928
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Unable to shift into fwd or Reverse-2015SV

Tue Jan 02, 2018 7:00 pm

If you can't get it into READY mode (green car w/arrows), it's probably a low 12 volt battery, that can be remedied by jump starting. If it continues, esp. after you charge the 12 volt w/a real 12 volt charger, the 12 volt battery might be bad.

Measure the 12 volt voltage with a multi-meter/volt meter after the car has sat for many hours (before turning on the car). I suspect it's low.

'13 Leaf SV w/premium package (owned)
'13 Leaf SV w/QC + LED & premium packages (lease over, car returned)
'06 Prius

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

alozzy
Posts: 1005
Joined: Fri Jan 20, 2017 4:25 pm
Delivery Date: 18 Jan 2017
Location: Vancouver, BC
Contact: Website

Re: Unable to shift into fwd or Reverse-2015SV

Tue Jan 02, 2018 7:54 pm

Definitely sounds like a 12V battery issue. If you have Leaf Spy, it will tell you what the voltage level is on the 12V battery. In my experience, anything below approx 12.8V can cause the "T/M system malfunction" warning to appear.
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
LeafSpy Pro + Konnwei KW902 ELM327 BT OBDII dongle
Loving my first BEV :D

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