sandeen
Posts: 20
Joined: Fri May 12, 2017 1:45 pm
Leaf Number: 026685

Leafspy & relay chatter under the hood?

Wed Jul 12, 2017 11:40 am

I have a 2012 SL, and LeafSpy pro. i'd noticed before that when the car was sitting and charging, I heard relay chatter under the hood, on the opposite side of the 12v battery. I chalked this up to battery management fiddling with cells, or something.

But today I realized that this only happens when LeafSpy is polling the car. If I exit LeafSpy, the chatter stops.
I'm a bit concerned that the LeafSpy polling could be shortening the life of some components in the car, specifically the relays which I assume to be making this noise. Has anyone else noticed this? Turbo3, any idea which parts of the polling may be causing this?

Thanks,
-Eric
Last edited by sandeen on Wed Jul 12, 2017 1:05 pm, edited 1 time in total.
2012 SL, used

Reddy
Posts: 1365
Joined: Fri Feb 11, 2011 3:09 pm
Delivery Date: 18 Aug 2011
Leaf Number: 006828
Location: Pasco, WA

Re: Leafspy & relay chatter under the hood?

Wed Jul 12, 2017 12:01 pm

Yes, I've noticed this with my 2011 SL. I just unplug both the LeafSpy and charging. I'm not sure if they are related, but I agree: When there's extra noise I'd be worried.
Reddy
2011 SL; 9 bar, 47.45 AHr; 39,500 mi; rcv'd Aug 18, 2011
Long: http://www.mynissanleaf.com/viewtopic.p ... al#p226115"
Cold: http://www.mynissanleaf.com/viewtopic.p ... 60#p243033"

sandeen
Posts: 20
Joined: Fri May 12, 2017 1:45 pm
Leaf Number: 026685

Re: Leafspy & relay chatter under the hood?

Wed Jul 12, 2017 12:42 pm

It'd be nice to be able to set the polling interval, there's really no need to cycle this as quickly as possible, I think.

For now I guess I'll stop leaving LeafSpy running in the garage while I charge .... :)
2012 SL, used

lkkms2
Gold Member
Posts: 288
Joined: Wed Jul 20, 2011 8:10 am
Delivery Date: 30 Dec 2016
Leaf Number: 302025
Location: San Diego/National City, CA

Re: Leafspy & relay chatter under the hood?

Thu Jul 13, 2017 2:02 am

Don't leave the OBDII Bluetooth connected. Pull out when not using.

Having an extension cable is a good idea. Leave the extension plugged in, but disconnect the OBDII.

I had this problem with my 2011 Leaf.
2011 Leaf SL purchased 6-22-2011, sold 1-18-2017 with new battery.
2017 Leaf SV with Premium Package purchased 12-30-2016

User avatar
Marktm
Gold Member
Posts: 309
Joined: Thu Jan 21, 2016 10:49 am
Delivery Date: 09 Jan 2016
Leaf Number: 022737

Re: Leafspy & relay chatter under the hood?

Thu Jul 13, 2017 6:57 am

sandeen wrote:I have a 2012 SL, and LeafSpy pro. i'd noticed before that when the car was sitting and charging, I heard relay chatter under the hood, on the opposite side of the 12v battery. I chalked this up to battery management fiddling with cells, or something.

But today I realized that this only happens when LeafSpy is polling the car. If I exit LeafSpy, the chatter stops.
I'm a bit concerned that the LeafSpy polling could be shortening the life of some components in the car, specifically the relays which I assume to be making this noise. Has anyone else noticed this? Turbo3, any idea which parts of the polling may be causing this?

Thanks,
-Eric


I tried to replicate your issue with my 2012 Leaf. What I hear is a very slight "crackling" noise that appears to be coming from the junction box. It happens while charging whether or not I have the OBDII dongle in place - and of course having LeafSpy on/off makes no difference (always makes the noise when charging). I have the LELINK (low energy bluetooth/iOS) dongle. What operating system is your LeafSpy app?

I leave my dongle in place always and have not had any 12v battery drain issues when gone over a week - with the original battery.
2012 Leaf SL; 34,000 miles. 12 bars - Battery replaced November 1st, 2016.
4000 watts Grid-tied solar. 3000 watts (level II) off-grid solar Leaf charging capable.

sandeen
Posts: 20
Joined: Fri May 12, 2017 1:45 pm
Leaf Number: 026685

Re: Leafspy & relay chatter under the hood?

Thu Jul 13, 2017 7:58 am

I guess I can do a bit more investigation to be sure, but before I started this thread I started/stopped/started/stopped leafspy, and the noise came and went with it.
On the other hand, I went back out this morning and turned on leafspy and heard nothing... ?

yeah, the sound is sort of a tick-tick-tick type sound, not rhythmic but semi random.

I'm running leafspy on android with a bluetooth adapter.
2012 SL, used

sandeen
Posts: 20
Joined: Fri May 12, 2017 1:45 pm
Leaf Number: 026685

Re: Leafspy & relay chatter under the hood?

Thu Jul 13, 2017 8:14 am

lkkms2 wrote:Don't leave the OBDII Bluetooth connected. Pull out when not using.

Having an extension cable is a good idea. Leave the extension plugged in, but disconnect the OBDII.


Sure, that's a very big-hammer approach. :) But I was intentionally gathering data while charging, and became concerned that it might be hard on the car.
2012 SL, used

GerryAZ
Gold Member
Posts: 1293
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: Leafspy & relay chatter under the hood?

Mon Jul 17, 2017 1:26 pm

Make sure you are running a late version of LEAF Spy Pro. The earlier software versions did cause one of the relays to cycle, but I thought later software versions fixed this. I have no way to test with 2011 or 2012 now. There is no relay chatter with my 2015.
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015

sandeen
Posts: 20
Joined: Fri May 12, 2017 1:45 pm
Leaf Number: 026685

Re: Leafspy & relay chatter under the hood?

Mon Jul 17, 2017 1:33 pm

I get it at some times and not others - haven't narrowed it down. In fact one time when I opened the door to pop the hood and listen more closely, that stopped the chatter. (!)

I'm on 0.39.97 - latest, I think.

I guess the relays are probably replaceable, so maybe it's not a huge deal. Just seems odd.
2012 SL, used

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