99 C5 Battery draining!
Thread Starter
Intermediate
Joined: Jan 2009
Posts: 25
Likes: 0
From: Jacksonville Fl
99 C5 Battery draining!
I have a 99 C5 that is pretty much stock (with the After market radio). In the last month the battery started dying. I had the charging system checked (Alt charges between 13.8-14.1) and replaced the battery. It dies after the car sits for 1 1/2 - 2 days. I had the radio installed 3 years ago and everything seams to be working fine.
I logged the following DTC codes. Any Ideas?
28 TCS
C1255 H
A0LDCM
B2252 H
B2282 H
B2284 H
B2276 H
U1255 H
U1064 H
U1016 H
U1096 H
A1RDCM
B2283 H
B2285 H
B2277 H
U1064 H
A6SCM
B0851 H
B0856 H
B0RFA
U1255 H
U1096 H
U1064 H
U1016 H
I logged the following DTC codes. Any Ideas?
28 TCS
C1255 H
A0LDCM
B2252 H
B2282 H
B2284 H
B2276 H
U1255 H
U1064 H
U1016 H
U1096 H
A1RDCM
B2283 H
B2285 H
B2277 H
U1064 H
A6SCM
B0851 H
B0856 H
B0RFA
U1255 H
U1096 H
U1064 H
U1016 H
Last edited by wingnutphil; Mar 10, 2011 at 07:15 PM.
Tech Contributor
Joined: Jan 2007
Posts: 19,464
Likes: 1,166
From: Dyer, IN
Melting Slicks
Joined: Dec 2003
Posts: 2,857
Likes: 2
From: pawleys island sc
all your codes are History codes, not current, so that isn't telling you anything. Make sure the battery is fully charged, then check your
"sleeping"( steady state) current draw as outlned in the above referenced post. If you have excessive current draw, then you can start pullinjg fuses to isolate the shorted circuit.
"sleeping"( steady state) current draw as outlned in the above referenced post. If you have excessive current draw, then you can start pullinjg fuses to isolate the shorted circuit.
Thread Starter
Intermediate
Joined: Jan 2009
Posts: 25
Likes: 0
From: Jacksonville Fl
I found the fuse that is causing the problem. Fuse #4 under the passenger side. Not sure what circuit is fed thru the fuse. It says "SCM-L". Any ideas?
Last edited by wingnutphil; Mar 12, 2011 at 11:01 AM.
Tech Contributor
Joined: Jan 2007
Posts: 19,464
Likes: 1,166
From: Dyer, IN
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
It appears the SCM itself has issues. That fuse powers the SCM. I would be taking the seat out and examining all the wiring under there for shorted wires.
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