Battery Drain quick question
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Just pull the fuses. If theres NO POWER to the relay,, you get no current draw! My guess... its the IGN Realy OR the PCM. Better pray it not the PCM..
Thread Starter
Racer
Joined: Jun 2003
Posts: 433
Likes: 0
From: Aspenden Hertfordshire U.K.
Hi Guys, its that PIA from the UK again.
Have completed all the options ref pulling fuses with no result, I have even tried removing ALL the fuses but still get a high reading when IGN 1 #47 is replaced.
Someone commented earlier that the ign switch may be at fault perhaps a small short? it seems feasable as that is where IGN 1 goes first before distribution, is there a way of testing the switch itself? does it need to be removed, if so how? can I test via a connector without removal?
FYI readings with IGN 1 in place- down to 0.36 within 2 mins - then around 0.23 within 3 minutes - then eventually 0.19 after 12 mins.
With IGN 1 removed down to 0.23 within 2 mins - then 0.09 after 7 mins -then 0.02 after 10 mins.
Look forward to your thoughts
Mike
Have completed all the options ref pulling fuses with no result, I have even tried removing ALL the fuses but still get a high reading when IGN 1 #47 is replaced.
Someone commented earlier that the ign switch may be at fault perhaps a small short? it seems feasable as that is where IGN 1 goes first before distribution, is there a way of testing the switch itself? does it need to be removed, if so how? can I test via a connector without removal?
FYI readings with IGN 1 in place- down to 0.36 within 2 mins - then around 0.23 within 3 minutes - then eventually 0.19 after 12 mins.
With IGN 1 removed down to 0.23 within 2 mins - then 0.09 after 7 mins -then 0.02 after 10 mins.
Look forward to your thoughts
Mike
Thread Starter
Racer
Joined: Jun 2003
Posts: 433
Likes: 0
From: Aspenden Hertfordshire U.K.
found it, turned out to be the upgraded alarm, pulled the in line supply fuses and no drain (0.02) plus the car still starts. No central locking now plus I guess the alarm wont work so either need to get a new alarm fitted or simply remove this one and revert to GM OE system assuming it is still intact.I cant thank you all enough for all your help, I will post again once I have the problem fully resolved.
Mike
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
"If you have some sort of aftermarket alarm system on the car, All bets are off as to whats causing it. Please post a picture of the FOB. I am un aware of of a Euro Difference but, Im not a EURO Expert."I said that back on post 33 Man,,, Im very happy you resolved the main issue..
Bill
Racer
Joined: Sep 2008
Posts: 487
Likes: 4
I have a battery drain of about 0.06 amps which is sligthly above the 0.02 amps "spec". I know this is not a lot, but the battery does drain significantly more quickly than other C5s I have owned. If a "normal car" drains the battery to a no start condition in 30 days, my will last only about 10. I have a brand new battery because this drain slowly killed my other one. I also keep the car in reverse.
I have completed the obvious items and checked:
Seat
Alternator
Bose
RAPP
I also traced this to IGN fuse #1 per these posts and then to each fuse under IGN fuse #1 including the branch "F".
Is 0.06 amps still the best I can do? If not where do I go from here?
I have completed the obvious items and checked:
Seat
Alternator
Bose
RAPP
I also traced this to IGN fuse #1 per these posts and then to each fuse under IGN fuse #1 including the branch "F".
Is 0.06 amps still the best I can do? If not where do I go from here?
2nd Gear
Joined: Jul 2012
Posts: 2
Likes: 0
C-5 Battery drain
I tried everything to stop a battery drain----pulled all fuses replaced battery etc. nothing worked. Then i read somewhere that if you park the car in reverse (manual) and remove the key that would fix it----I could not believe it when it worked---no battery drain at all anymore..
Burning Brakes
Joined: Sep 2009
Posts: 1,239
Likes: 2
From: Naples FL
St. Jude Donor '12
Disconnect the battery and use a small jumper wire to connect the battery to the battery cable. Allow the car to cycle thru its upper amperage sequence. Then connect the meter and and then remove the jumper wire. That will allow the car to remain connected and then read thru the meter once the jumper wire is removed.
You can also just leave the CD changer door open and it wont cycle.
BC
You can also just leave the CD changer door open and it wont cycle.
BC
Tech Contributor
Joined: Jan 2007
Posts: 19,450
Likes: 1,155
From: Dyer, IN
I tried everything to stop a battery drain----pulled all fuses replaced battery etc. nothing worked. Then i read somewhere that if you park the car in reverse (manual) and remove the key that would fix it----I could not believe it when it worked---no battery drain at all anymore..
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