Hate to even ask - need help on current draw test
Thread Starter
Safety Car
Joined: Apr 2002
Posts: 4,653
Likes: 6
From: North Royalton, OH
St. Jude Donor '06-'07
Hate to even ask - need help on current draw test
I know it's been discussed many times here, but the dang search function won't cooperate. I find the threads and click on them, then get the "No thread specified" error message. Great
Anyway, I've seen that many have had problems with the power seat adjuster motors causing a current draw that kills their batteries. I've been fighting a battery drain problem for a while and would like to know the correct method for testing current draw. I'm not sure exactly how to pinpoint that the power seat motors are the issue or not. Could someone link me to (Bill Curlee's?) thread on how to check for a current draw and/or let me know what fuse(s) they pulled to confirm or deny that their power seats were indeed the source of the drain? If I could find it with the search button, I would. THANK YOU for any help. 
Anyway, I've seen that many have had problems with the power seat adjuster motors causing a current draw that kills their batteries. I've been fighting a battery drain problem for a while and would like to know the correct method for testing current draw. I'm not sure exactly how to pinpoint that the power seat motors are the issue or not. Could someone link me to (Bill Curlee's?) thread on how to check for a current draw and/or let me know what fuse(s) they pulled to confirm or deny that their power seats were indeed the source of the drain? If I could find it with the search button, I would. THANK YOU for any help.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Here ya go:
http://forums.corvetteforum.com/show...rent+draw+test
Edit:
Just tried the link and its dead after the Upgrade.
PM me with your e mail and I can send you a word doc.
The fuses you needed (all in the footwell):
Left Seat Relay: PWR/ST/DRV #35 (20A)
SCM-L #4 10A
Lumbar Left Seat: #3 (15A)
Right Seat Relay: PWR/ST/DRV #36 (20A)
Lumbar Rt Seat: also #3
Lumbar Right Seat
http://forums.corvetteforum.com/show...rent+draw+test
Edit:
Just tried the link and its dead after the Upgrade.
PM me with your e mail and I can send you a word doc.
The fuses you needed (all in the footwell):
Left Seat Relay: PWR/ST/DRV #35 (20A)
SCM-L #4 10A
Lumbar Left Seat: #3 (15A)
Right Seat Relay: PWR/ST/DRV #36 (20A)
Lumbar Rt Seat: also #3
Lumbar Right Seat
Last edited by DeeGee; Aug 14, 2008 at 01:54 AM.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Unfortunately the pics wont post up if I cut and paste. It was one of Bill Curlee's awesome posts. I'm sure Bill will pass it on but I have the word doc if anyone wants it.
Thread Starter
Safety Car
Joined: Apr 2002
Posts: 4,653
Likes: 6
From: North Royalton, OH
St. Jude Donor '06-'07
Well, the method of testing works, but I wasn't able to find the current draw yet. I guess at least it wasn't the seat or lumbar controls... When the BCM goes to sleep, I'm drawing 70 milliamps, not 20. Nothing I've pulled so far has changed that. I'm going to wait for a day when I can get a helper to watch for me - it's too cramped in my garage to keep this checking up any longer. The worst is when you pull and replace a fuse and it wakes up the system! Then you have to go find something else to do for a while until it shuts down again. Or you forget and close the door - duh. 
Anyway, I just have a ton of fuses to go through, and I appreciate the help in tracking down the problem. For now, I'll just keep it on the trickle charger and not worry. I'll find it...
Anyway, I just have a ton of fuses to go through, and I appreciate the help in tracking down the problem. For now, I'll just keep it on the trickle charger and not worry. I'll find it...
Last edited by BSiegPaint; Aug 17, 2008 at 04:11 PM.
