Faults Auto stop start and parasitic drain - Civinfo
 8Likes
  • 1 Post By M8TJT
  • 3 Post By cheekee
  • 2 Post By Haltamer
  • 1 Post By Haltamer
  • 1 Post By M8TJT
 
LinkBack Thread Tools
post #1 of 14 (permalink) Old 24th August 2019, 20:05 Thread Starter
Supporter
 
Haltamer's Avatar
 
Car: 9th Gen 1.4 Petrol SE + Navi
Join Date: 13th March 2017
Location: Essex, UK GB
Posts: 2,022
Thanks: 47
Thanked 294 Times in 264 Posts
iTrader: (3)
Garage
Auto stop start and parasitic drain

Would anyone happen to have a parasitic drain measurement for their car?

I'm getting about 0.27A with the multimeter in line for a while, which seems a little high. To be sure, I've disconnected my accesory plug which is all of the additional lighting and dashcam hardwire.

I did wonder if it was down to the rear indicator resistors, but a current measurement in the bulb socket has 0 current (Though, thinking about this in retrospect, I might not get a measure there)
They're not warm or otheriwise indicating a draw, but they're probably the biggest culprit.

After having the car on a battery charger, and doing a battery pull I'm also getting the auto stop start battery fault, which seems a little odd as the battery seems quite healthy (Holds 12.5V after the charge and a couple of starts)

A little puzzling!
Haltamer is offline  
Thanks to Haltamer from:
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 24th August 2019, 21:16 Thread Starter
Supporter
** Thread starter **
 
Haltamer's Avatar
 
Car: 9th Gen 1.4 Petrol SE + Navi
Join Date: 13th March 2017
Location: Essex, UK GB
Posts: 2,022
Thanks: 47
Thanked 294 Times in 264 Posts
iTrader: (3)
Garage
I've taken some voltage drop measurements from under dash fuse 34, For taillights et al, and under bonnet fuse 14, for hazards - I can't find any reference to indicator fuses on the circuit diagrams or fuse index, so I don't think it's down to the indicators:- The low battery issue seemed to start on the 20th:- I'd been using the car normally before that with the indicators in for a few days; I'm wondering if the battery may have died. (Not that it would explain the 0.3a drain)
Haltamer is offline  
post #3 of 14 (permalink) Old 24th August 2019, 22:58
Super Moderator
 
M8TJT's Avatar
 
Car: 10G 1.5 Civic Prestige
Join Date: 10th October 2015
Location: Bexhill, Sussex GB
Posts: 2,925
Thanks: 87
Thanked 221 Times in 213 Posts
iTrader: (1)
I know that when they were on about parasitic drain on my 10G for the Idle Stop not working, the drain was much less than 0.3A. I can't remember what he said the spec was, but it was more like 0.03A (30mA) or less than that. So your 0.3A does seem a bit on the high side.
Are you measuring after about 10mins when everything has switched off?
Haltamer likes this.
M8TJT is online now  
 
post #4 of 14 (permalink) Old 24th August 2019, 23:21 Thread Starter
Supporter
** Thread starter **
 
Haltamer's Avatar
 
Car: 9th Gen 1.4 Petrol SE + Navi
Join Date: 13th March 2017
Location: Essex, UK GB
Posts: 2,022
Thanks: 47
Thanked 294 Times in 264 Posts
iTrader: (3)
Garage
I get a mojo that the battery may have died; As I was having to take the measurements standing there holding the meter due to lack of clips, the 0.3 measurement is what I was getting after the current had settled down after a couple of minutes; Didn't give it the full time.

I think the battery has had it, as I had it up to 50% (Apparently!) charge with a Noco charger I bought the other day, and in about 2 minutes of sitting in the car with it under load, it completely died - Classic Civic christmas tree dash:- And that's after it had 100% charged this morning; I've done a couple of starts today to wash the car - but nothing that should drain a 100% battery, even with a 0.3a parasitic drain - I wouldn't have thought that would kill it between disconnecting the charger at 16:00 and this evening, even with starts thrown in!
Haltamer is offline  
post #5 of 14 (permalink) Old 25th August 2019, 15:44
Supporter
 
cheekee's Avatar
 
Car: 2011 Type S GT-T
Join Date: 20th February 2016
Location: Brighton GB
Posts: 380
Thanks: 62
Thanked 61 Times in 46 Posts
iTrader: (2)
Garage
My previous civic had a 0.9amp drain and it took a few days for the battery to go flat. If you are getting 0.3 amp draw after the MICU has turned off i don't think you have a parasitic drain. Bad battery maybe
M8TJT, equaliser and Haltamer like this.
cheekee is offline  
post #6 of 14 (permalink) Old 25th August 2019, 16:06 Thread Starter
Supporter
** Thread starter **
 
Haltamer's Avatar
 
Car: 9th Gen 1.4 Petrol SE + Navi
Join Date: 13th March 2017
Location: Essex, UK GB
Posts: 2,022
Thanks: 47
Thanked 294 Times in 264 Posts
iTrader: (3)
Garage
I think the drain was just a red herring; As before, that was after a couple of minutes of waiting, not giving it a full 20+mins for everything to shut down.

I've popped in a 096 Size battery from halfords (Size used on the 2.2 Diesel) with an extra 10Ah and 300CCA (And It's AGM rather than EFB), and after a quick start to reset everything, I've now got no stop start fault. I'll probably pop the other battery back in before the service so I can grab a spare on warranty

It doesn't fit with the original plastic trays, but the hold down is on nice and tight and It's not going anywhere.

One step closer to being a Halfords / Yuasa Touring car, I suppose!
M8TJT and equaliser like this.

Last edited by Haltamer; 25th August 2019 at 16:08.
Haltamer is offline  
post #7 of 14 (permalink) Old 25th August 2019, 21:51
Supporter
 
bill ericay's Avatar
 
Car: 2016 1.8 Sport Orchid White
Join Date: 12th May 2013
Location: Essex,UK GB
Posts: 320
Thanks: 94
Thanked 72 Times in 63 Posts
iTrader: (0)
As a matter of interest, are you still getting 0.3A drain with the new battery, and have you measured the voltage of the new battery to compare ? 0.3A would discharge a battery in a week-- ( 7.2 amps a day ! )
My start stop has always played up, mainly as I don't use the car much, sometimes only once a week, so I get the battery failure symbol quite often until I've been on a long run, then it settles down and works.
I use a CTEK charger to keep it topped up in the winter, but even then I get the start/stop fail with a battery symbol till the car decides it's happy. I tend to disable the start stop now if I remember after reading on another forum about battery/ starter motor problems .
bill ericay is offline  
post #8 of 14 (permalink) Old 25th August 2019, 22:24
Supporter
 
equaliser's Avatar
 
Car: 2016 1.4 i-VTEC Sport, Red
Join Date: 26th September 2016
Location: Clacks, Scotland SCOTLAND
Posts: 23
Thanks: 10
Thanked 2 Times in 2 Posts
iTrader: (0)
Garage
We had to replace the battery in our CR-V in June when it was 6 months out of warranty. The dealer said these Varta stop/start batteries are not lasting long and put it down to all the electronic gizmos on the modern car.
I've also been getting periodic messages from the myHonda app stating a battery problem but it starts fine and I do pop it on the C-TEK charger every couple of months. I think I'll get it checked at the dealer before the warranty runs out in September.
equaliser is offline  
post #9 of 14 (permalink) Old 26th August 2019, 13:17
Supporter
 
Djohn's Avatar
 
Car: 2012 9th Gen 1.8 SE-T
Join Date: 28th October 2016
Location: Leicester, UK ENGLAND
Posts: 54
Thanks: 8
Thanked 1 Time in 1 Post
iTrader: (0)
Garage
Back in April I too had a battery drain that completely flattened the battery it wouldnt start the car.Recharged battery but it went flat again within a week.

Took it to local Main Dealer who found the Instrument Cluster had a drain on it, replaced Speedo & all has been fine since.

Unusual !
Djohn is offline  
post #10 of 14 (permalink) Old 26th August 2019, 19:59
 
Car: 2012 2.2 Milano Red
Join Date: 8th March 2015
Location: Manchester GB
Posts: 343
Thanks: 99
Thanked 26 Times in 21 Posts
iTrader: (0)
My replacement battery (a Varta from Honda) for the MK 9 2.2 only lasted just under three years but I had no problems with the stop/start or anything else. I think its worth taking battery voltage readings when a battery is new so that your able to make accurate comparisons later. Because batteries are so cheap compared with anything else I have no compunction in changing a battery as soon as it becomes suspect, particularly in winter time, as they are they are the lynch pin of the whole operation.
poor1 is offline  
post #11 of 14 (permalink) Old 26th August 2019, 20:22 Thread Starter
Supporter
** Thread starter **
 
Haltamer's Avatar
 
Car: 9th Gen 1.4 Petrol SE + Navi
Join Date: 13th March 2017
Location: Essex, UK GB
Posts: 2,022
Thanks: 47
Thanked 294 Times in 264 Posts
iTrader: (3)
Garage
Waiting to see at the moment; I'm quite sure it was the battery at fault and the 0.3a draw was most likely down to an active system somewhere.

With the previous battery, I sat in the car after a full charge and with a few minutes of the headlights being on, everything died:- I'm quite sure that shouldn't happen from a full charge, parasitic drain or no!

I have had the Auto Stop / Start battery light pop up a couple of times, but none of the trouble cranking or similar - It seems to have gone away once again at the moment, but I think that's down to the fact I've not completed the "Reset internal resistance measurement" step; (Unfortunately that's a part of the manual I don't have!) and that seems to have done the trick.
Haltamer is offline  
post #12 of 14 (permalink) Old 26th August 2019, 20:25
Super Moderator
 
M8TJT's Avatar
 
Car: 10G 1.5 Civic Prestige
Join Date: 10th October 2015
Location: Bexhill, Sussex GB
Posts: 2,925
Thanks: 87
Thanked 221 Times in 213 Posts
iTrader: (1)
Quote:
Originally Posted by Haltamer View Post
I think that's down to the fact I've not completed the "Reset internal resistance measurement" step; (Unfortunately that's a part of the manual I don't have!) and that seems to have done the trick.
That setup has been posted somewhere as I am certain that I have seen it within the last month.
What a complex setup it is too.
M8TJT is online now  
post #13 of 14 (permalink) Old 30th August 2019, 12:43 Thread Starter
Supporter
** Thread starter **
 
Haltamer's Avatar
 
Car: 9th Gen 1.4 Petrol SE + Navi
Join Date: 13th March 2017
Location: Essex, UK GB
Posts: 2,022
Thanks: 47
Thanked 294 Times in 264 Posts
iTrader: (3)
Garage
2000th post!

I've been recreationally reading the service bulletins, and found some very useful information in Number 46 (Attatched)

When charging the battery, the negative cable of the charger should be connected directly to the chassis ground, or battery sensors won't detect the charge and won't re-enable stop start after charging.
Attached Files
File Type: pdf 46.pdf (413.6 KB, 10 views)
bill ericay likes this.
Haltamer is offline  
post #14 of 14 (permalink) Old 30th August 2019, 15:02
Super Moderator
 
M8TJT's Avatar
 
Car: 10G 1.5 Civic Prestige
Join Date: 10th October 2015
Location: Bexhill, Sussex GB
Posts: 2,925
Thanks: 87
Thanked 221 Times in 213 Posts
iTrader: (1)
Ah. At last, a good and believable reason for connecting neg to chassis.
But it actually seems a tad worse than Haltamer implied.
Quote:
If the negative charger clamp is connected incorrectly on to the battery negative terminal the battery sensor will not detect the charging current flow.This will result in the Auto Idle Stop system being disabled by the ECM/PCM software logic
But it pretty much means the same thing.
Haltamer likes this.
M8TJT is online now  
Reply

  Civinfo > 9th Generation Euro Honda Civic (2012 - 2016) > Engines and Transmission (9G)

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Civinfo forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Your User Name is the name that appears by all your posts on the forum, and so should not be your email address.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome