Battery keeps going flat - Page 2

Blackrose · 24th November 2016, 17:52

PM sent.

Blackrose

Dallas · 24th November 2016, 18:11

Quote:

Originally Posted by Blackrose

PM sent.

Blackrose

Thanks Steve

will do.

suzublu · 24th November 2016, 19:05

Spotted this on another thread Wes, might be a clue

http://www.the75andztclub.co.uk/foru...13&postcount=9

Dallas · 24th November 2016, 19:50

Quote:

Originally Posted by suzublu

Spotted this on another thread Wes, might be a clue

http://www.the75andztclub.co.uk/foru...13&postcount=9

ok thanks Ron,

If this is the case, would the LSM illumination be permanently on, or the headlights be playing up?

I dont have water in the plenum chamber, I haven't checked the LSM for corrosion as yet. I dont suppose I can just swap with another used LSM from another ZT if it was found to be at fault?

How do I go about testing the LSM, I only know the basics to car electronics, so to much tech-talk will most probably go over my head.

Rovehappy · 24th November 2016, 21:44

Did you rule out the light not going out in the boot? That seems to be quite a common problem. The easy way to check for that is to fold the rear seats forward and then watch to see whether the light in the boot goes out. It does not go out immediately but should go out with the other interior lights.

Dallas · 24th November 2016, 22:31

Quote:

Originally Posted by Rovehappy

Did you rule out the light not going out in the boot? That seems to be quite a common problem. The easy way to check for that is to fold the rear seats forward and then watch to see whether the light in the boot goes out. It does not go out immediately but should go out with the other interior lights.

Hi, sorry I forgot to mention, yes I performed the test earlier this evening. Yes, the boot light goes out, it dims with the interior light and then goes out completely.

COLVERT · 25th November 2016, 18:01

Quote:

Originally Posted by Dallas

ok thanks Ron,

If this is the case, would the LSM illumination be permanently on, or the headlights be playing up?

I dont have water in the plenum chamber, I haven't checked the LSM for corrosion as yet. I dont suppose I can just swap with another used LSM from another ZT if it was found to be at fault?

How do I go about testing the LSM, I only know the basics to car electronics, so to much tech-talk will most probably go over my head.

The LSM can be swopped but the replacement has to be programmed to the car.
One of the ELECTRONIC gurus mentioned this only a day or two ago.

bl52krz · 25th November 2016, 19:25

Was just going to read to the end of the posts and make a suggestion that poster should take belt off alternator and see if the alternator was running backwards. I have known that did that on different cars.

Dallas · 25th November 2016, 20:56

It was nice talking with you Steve, appreciated the advice.

I've just been outside in the cold and performed the Parasitic test draw, and BINGO! I only have a 0.47ma reading, which means there is no drain on the battery to cause it to go flat.

It looks like all 3 spare batteries I have are rubbish, which is hard to believe considering one is only 10 months old, and was perfectly fine on the car it came from.

I have no battery/alternator light on dash, have no reason to believe the battery isn't charging. The car doesn't get driven much, but my red ZT doesn't either, car can stand for 2 weeks with no use and battery has been perfectly fine for two years.

I guest I have 4 deteriorating batteries that will not hold a charge, maybe its time for a new battery.

Thanks again for all the help guys, very much appreciated.

Nev The Bear · 25th November 2016, 21:45

Just as a thought I had a battery drain on my ZTT and Phil T4 identified at a Sammy Millers Meet that the Sat Nav Drive was not shutting down. The drive would go through the shut down process and immediately reboot and start up again, it might be worth checking if this maybe the cause of the battery drain. Since the sat nav drive was sent away and refitted under warranty it has been fine since.

24th November 2016, 19:05	#13
suzublu This is my second home rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009 Location: Seaton Carew Posts: 26,931 Thanks: 65 Thanked 7,142 Times in 4,642 Posts	Spotted this on another thread Wes, might be a cluehttp://www.the75andztclub.co.uk/foru...13&postcount=9

25th November 2016, 19:25	#18
bl52krz This is my second home Rover 75 cdt club + Rover 2.5 KV6 Conni SE Join Date: May 2008 Location: Birmingham Posts: 11,397 Thanks: 6,587 Thanked 2,262 Times in 1,729 Posts	Was just going to read to the end of the posts and make a suggestion that poster should take belt off alternator and see if the alternator was running backwards. I have known that did that on different cars. __________________ Great Barr, Birmingham.

25th November 2016, 20:56	#19
Dallas This is my second home 1979 Capri 1.6L, 1982 Capri 1.6L, 2016 Dacia Stepway Join Date: Jun 2009 Location: Dorset Posts: 8,595 Thanks: 3,496 Thanked 3,397 Times in 2,218 Posts	It was nice talking with you Steve, appreciated the advice. I've just been outside in the cold and performed the Parasitic test draw, and BINGO! I only have a 0.47ma reading, which means there is no drain on the battery to cause it to go flat. It looks like all 3 spare batteries I have are rubbish, which is hard to believe considering one is only 10 months old, and was perfectly fine on the car it came from. I have no battery/alternator light on dash, have no reason to believe the battery isn't charging. The car doesn't get driven much, but my red ZT doesn't either, car can stand for 2 weeks with no use and battery has been perfectly fine for two years. I guest I have 4 deteriorating batteries that will not hold a charge, maybe its time for a new battery. Thanks again for all the help guys, very much appreciated. Last edited by Dallas; 25th November 2016 at 21:48..

24th November 2016, 17:52	#11
Blackrose Loves to post Rover 75 Saloon Join Date: Apr 2015 Location: Stockton - On - Tees Posts: 367 Thanks: 55 Thanked 119 Times in 88 Posts	PM sent. Blackrose

24th November 2016, 21:44	#15
Rovehappy Regular poster Rover 75 Saloon and Rover 75 tourer Join Date: Oct 2016 Location: Ealing, London Posts: 30 Thanks: 10 Thanked 16 Times in 5 Posts	Did you rule out the light not going out in the boot? That seems to be quite a common problem. The easy way to check for that is to fold the rear seats forward and then watch to see whether the light in the boot goes out. It does not go out immediately but should go out with the other interior lights.

25th November 2016, 21:45	#20
Nev The Bear This is my second home Does not matter Join Date: Mar 2013 Location: . Posts: 3,996 Thanks: 2,397 Thanked 1,575 Times in 987 Posts	Just as a thought I had a battery drain on my ZTT and Phil T4 identified at a Sammy Millers Meet that the Sat Nav Drive was not shutting down. The drive would go through the shut down process and immediately reboot and start up again, it might be worth checking if this maybe the cause of the battery drain. Since the sat nav drive was sent away and refitted under warranty it has been fine since.