Battery 1.8 upgrade battery from Bosch S4021

Brungle · 16th August 2012, 00:24

I already have a Bosch S4021 in my 1.8 and I'm finding if the car is stood for 48 hours it won't start.
I may have something causing a slow drain which I'm sure is going to be a nightmare to find..

I do own a ctek charger and have been using it recently but after an 8 hour charge last night the car still wouldn't start this morning (battery left in car overnight)

The s4021 is rated at 45ah, what higher rated options are there that people have managed to fit in the civic? I'm not using the standard air box so should have some extra space.

I think the Bosch has gone flat so many times now that I've probably ruined it.
I've heard of an micu recall on the 06 but mine doesn't come up when I check the vin and I can't afford hundreds to replace it if it's not required.

Grayfox · 16th August 2012, 02:17

Parasitic Draw test video by ETCG

Brungle · 16th August 2012, 08:36

Thanks.
car won't start this mining at all despite having the battery on charge all night. It was in recon mode which includes a test to ensure it
Holds charge it passed from what I could tell..

I guess I need a new battery?

Grayfox · 16th August 2012, 09:21

Installing a new battery will be useless if you have a parasitic draw issue as your new battery will go flat as well.

Brungle · 16th August 2012, 20:55

I followed the video (which is excellent so thanks for that) found a draw of 0.37 which dissapeared after I removed fuse that says 15 (in the attached pic) I'm not sure what it is though!? Just searching now.ImageUploadedByTapatalk1345146842.189568.jpg

Brungle · 16th August 2012, 21:13

I don't understand the diagram in the manual

I have noticed that if I pull the fuse it stops the remote central locking from working! Non of the fuse descriptions in the manual mention any 'remote locking' or similar...

One fuse is described as 'back up'?

Anyone got any ideas?

Cheers

Grayfox · 17th August 2012, 03:49

You will have to look at a wiring diagram of what circuits are controlled by fuse 15.
I hope you also tried the inside fuse panel.

P.S why is your fusebox so dirty?

Brungle · 17th August 2012, 08:22

Quote:

Originally Posted by Grayfox

You will have to look at a wiring diagram of what circuits are controlled by fuse 15.
I hope you also tried the inside fuse panel.

P.S why is your fusebox so dirty?

Will do.
Not sure why it's got so dirty the cover has always been on. Looks a bit worse than it is due to camera flash.

Not checked interior fuses yet either.

Grayfox · 17th August 2012, 11:24

Check the interior fuses with fuse 15 plugged in to see if it goes down and see what is controlled by that fuse. and their will always be some current draw which is about <30mA.
And when doing this test make sure you keep the doors closed.

And what was the fuse number(not amp rating)

Brungle · 19th August 2012, 11:47

I've clamped the door switch in closed position and been doing some testing on the interior fuse box.

To start with multimeter was reading 0.47 after taking out fuse 16 (reverse lights) it dropped to 0.19. I put the fuse back in and it stayed at 0.19 though!?

I do have a reversing camera. I would have thought putting the fuse back in would mean the reading would go up again though?

I have my multimeter on the 10A setting. Should I be expecting a 0.05 reading?

Thanks for your help so far it's very much appreciated.

Rich

Brungle · 19th August 2012, 11:49

Just noticed fuse 16 is right headlight... So it's not reverse lights then... What fuse no. For rears?

Cheers

Syx · 19th August 2012, 12:29

I think the manual lists them all for both under the bonnet and under the dash.

Grayfox · 19th August 2012, 13:23

The lids tell you what circuits are controlled by that fuse

RickHondaR · 19th August 2012, 13:30

what would help a lot is if you had an identical civic to compare the loads with when removing fuses etc as this would make it easier to find were the current is going rather than thinking something is taking current but is the norm on all civics

coste1l · 19th August 2012, 13:44

when you get to the new battery euro car parts with the discount code listed on the forum will save you a fortune! and bosch silver batterys are awesome

Brungle · 20th August 2012, 11:26

Quote:

Originally Posted by coste1l

when you get to the new battery euro car parts with the discount code listed on the forum will save you a fortune! and bosch silver batterys are awesome

thanks alot for that mate. reserved one £41 instead of £55

still need to get to the bottom of the drain before installing it obviously. I had to stop testing due to rain yesterday.

unfortunately I don't know of another civic close by to compare the drain either. I believe I need to get it to the point where the multimeter is reading 0.05 or less when on the 10A setting. lowest so far is 0.19.

from that I've read it could be the HFT, so I will try unplugging that which I believe is a little black box with a bluetooth logo on in the drivers footwell. (as it doesn't have its own fuse?)

I've still got some more interior fuses to try.

pita.

pcr · 20th August 2012, 12:00

When measuring the drain current you need to wait say 15 minutes for the circuits to "go to sleep", hopefully you are doing this.

Brungle · 20th August 2012, 12:54

Quote:

Originally Posted by pcr

When measuring the drain current you need to wait say 15 minutes for the circuits to "go to sleep", hopefully you are doing this.

yeh I have been doing that.

are there any specific fuses I should be concentrating on first? ie. the common culprits?

can someone with a 1.8 EX confirm the exact drain they have when the car is stood (after the 15mins) please?

cheers

Grayfox · 20th August 2012, 16:50

I would assume MICU because that is the brains and but any circuit can go nuts and do crazy things.

Brungle · 20th August 2012, 19:43

Been through all the interior fuses now. Can't find the drain...

when I remove fuse 16 (described as 'back up' in the manual) from the under bonnet fuse the drain instantly goes from 0.47 to 0.03.

I've no idea what it means by 'back up' though. it stops remote central locking from working when removed, not sure what else.

16th August 2012, 00:24	#1 (permalink)
Brungle living the dream Car: 2006 1.8 EX, Milano Join Date: 9th April 2009 Location: West Yorkshire Posts: 854 Thanks given: 186 Thanked 63 Times in 51 Posts iTrader: (4)	1.8 upgrade battery from Bosch S4021 I already have a Bosch S4021 in my 1.8 and I'm finding if the car is stood for 48 hours it won't start. I may have something causing a slow drain which I'm sure is going to be a nightmare to find.. I do own a ctek charger and have been using it recently but after an 8 hour charge last night the car still wouldn't start this morning (battery left in car overnight) The s4021 is rated at 45ah, what higher rated options are there that people have managed to fit in the civic? I'm not using the standard air box so should have some extra space. I think the Bosch has gone flat so many times now that I've probably ruined it. I've heard of an micu recall on the 06 but mine doesn't come up when I check the vin and I can't afford hundreds to replace it if it's not required.

17th August 2012, 11:24	#9 (permalink)
Grayfox Most Active Australian Car: 2010 Black Civic Si FK2 Join Date: 1st February 2012 Location: NSW, Australia Posts: 2,984 Thanks given: 67 Thanked 273 Times in 258 Posts iTrader: (0)	Check the interior fuses with fuse 15 plugged in to see if it goes down and see what is controlled by that fuse. and their will always be some current draw which is about <30mA. And when doing this test make sure you keep the doors closed. And what was the fuse number(not amp rating) Last edited by Grayfox; 17th August 2012 at 11:30.

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16th August 2012, 02:17	#2 (permalink)
Grayfox Most Active Australian Car: 2010 Black Civic Si FK2 Join Date: 1st February 2012 Location: NSW, Australia Posts: 2,984 Thanks given: 67 Thanked 273 Times in 258 Posts iTrader: (0)	Parasitic Draw test video by ETCG

16th August 2012, 08:36	#3 (permalink)
Brungle living the dream Thread starter Car: 2006 1.8 EX, Milano Join Date: 9th April 2009 Location: West Yorkshire Posts: 854 Thanks given: 186 Thanked 63 Times in 51 Posts iTrader: (4)	Thanks. car won't start this mining at all despite having the battery on charge all night. It was in recon mode which includes a test to ensure it Holds charge it passed from what I could tell.. I guess I need a new battery?

16th August 2012, 09:21	#4 (permalink)
Grayfox Most Active Australian Car: 2010 Black Civic Si FK2 Join Date: 1st February 2012 Location: NSW, Australia Posts: 2,984 Thanks given: 67 Thanked 273 Times in 258 Posts iTrader: (0)	Installing a new battery will be useless if you have a parasitic draw issue as your new battery will go flat as well.

16th August 2012, 20:55	#5 (permalink)
Brungle living the dream Thread starter Car: 2006 1.8 EX, Milano Join Date: 9th April 2009 Location: West Yorkshire Posts: 854 Thanks given: 186 Thanked 63 Times in 51 Posts iTrader: (4)	I followed the video (which is excellent so thanks for that) found a draw of 0.37 which dissapeared after I removed fuse that says 15 (in the attached pic) I'm not sure what it is though!? Just searching now.ImageUploadedByTapatalk1345146842.189568.jpg

16th August 2012, 21:13	#6 (permalink)
Brungle living the dream Thread starter Car: 2006 1.8 EX, Milano Join Date: 9th April 2009 Location: West Yorkshire Posts: 854 Thanks given: 186 Thanked 63 Times in 51 Posts iTrader: (4)	I don't understand the diagram in the manual I have noticed that if I pull the fuse it stops the remote central locking from working! Non of the fuse descriptions in the manual mention any 'remote locking' or similar... One fuse is described as 'back up'? Anyone got any ideas? Cheers

17th August 2012, 03:49	#7 (permalink)
Grayfox Most Active Australian Car: 2010 Black Civic Si FK2 Join Date: 1st February 2012 Location: NSW, Australia Posts: 2,984 Thanks given: 67 Thanked 273 Times in 258 Posts iTrader: (0)	You will have to look at a wiring diagram of what circuits are controlled by fuse 15. I hope you also tried the inside fuse panel. P.S why is your fusebox so dirty?

19th August 2012, 11:47	#10 (permalink)
Brungle living the dream Thread starter Car: 2006 1.8 EX, Milano Join Date: 9th April 2009 Location: West Yorkshire Posts: 854 Thanks given: 186 Thanked 63 Times in 51 Posts iTrader: (4)	I've clamped the door switch in closed position and been doing some testing on the interior fuse box. To start with multimeter was reading 0.47 after taking out fuse 16 (reverse lights) it dropped to 0.19. I put the fuse back in and it stayed at 0.19 though!? I do have a reversing camera. I would have thought putting the fuse back in would mean the reading would go up again though? I have my multimeter on the 10A setting. Should I be expecting a 0.05 reading? Thanks for your help so far it's very much appreciated. Rich

19th August 2012, 11:49	#11 (permalink)
Brungle living the dream Thread starter Car: 2006 1.8 EX, Milano Join Date: 9th April 2009 Location: West Yorkshire Posts: 854 Thanks given: 186 Thanked 63 Times in 51 Posts iTrader: (4)	Just noticed fuse 16 is right headlight... So it's not reverse lights then... What fuse no. For rears? Cheers

19th August 2012, 12:29	#12 (permalink)
Syx Clingfilmed Car: 2008 2.2 CTS GT Join Date: 22nd December 2009 Location: Luton, UK Posts: 9,005 Thanks given: 827 Thanked 1,619 Times in 1,418 Posts iTrader: (37)	I think the manual lists them all for both under the bonnet and under the dash.

19th August 2012, 13:23	#13 (permalink)
Grayfox Most Active Australian Car: 2010 Black Civic Si FK2 Join Date: 1st February 2012 Location: NSW, Australia Posts: 2,984 Thanks given: 67 Thanked 273 Times in 258 Posts iTrader: (0)	The lids tell you what circuits are controlled by that fuse

19th August 2012, 13:30	#14 (permalink)
RickHondaR Supporter Car: CTR-19625 GT Join Date: 16th August 2008 Location: UK Posts: 4,507 Thanks given: 653 Thanked 451 Times in 380 Posts iTrader: (93)	what would help a lot is if you had an identical civic to compare the loads with when removing fuses etc as this would make it easier to find were the current is going rather than thinking something is taking current but is the norm on all civics

19th August 2012, 13:44	#15 (permalink)
coste1l Supporter Car: 09 Suzuki Swift Sport white Join Date: 16th January 2010 Location: Sunderland UK Posts: 17,853 Thanks given: 1,110 Thanked 1,981 Times in 1,871 Posts iTrader: (15)	when you get to the new battery euro car parts with the discount code listed on the forum will save you a fortune! and bosch silver batterys are awesome

20th August 2012, 12:00	#17 (permalink)
pcr Join Date: 5th September 2006 Location: Shropshire Posts: 1,461 Thanks given: 0 Thanked 46 Times in 45 Posts iTrader: (0)	When measuring the drain current you need to wait say 15 minutes for the circuits to "go to sleep", hopefully you are doing this.

20th August 2012, 16:50	#19 (permalink)
Grayfox Most Active Australian Car: 2010 Black Civic Si FK2 Join Date: 1st February 2012 Location: NSW, Australia Posts: 2,984 Thanks given: 67 Thanked 273 Times in 258 Posts iTrader: (0)	I would assume MICU because that is the brains and but any circuit can go nuts and do crazy things.

20th August 2012, 19:43	#20 (permalink)
Brungle living the dream Thread starter Car: 2006 1.8 EX, Milano Join Date: 9th April 2009 Location: West Yorkshire Posts: 854 Thanks given: 186 Thanked 63 Times in 51 Posts iTrader: (4)	Been through all the interior fuses now. Can't find the drain... when I remove fuse 16 (described as 'back up' in the manual) from the under bonnet fuse the drain instantly goes from 0.47 to 0.03. I've no idea what it means by 'back up' though. it stops remote central locking from working when removed, not sure what else.