2004 Oldsmobile Alero Parasitic Drain

Tiny
OREIPJ
  • MEMBER
  • 2004 OLDSMOBILE ALERO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
2004 Alero - I have manual and meter
Recent work -- New Rug installed (Third Party). Car was dead lights left on jump started car now have issue. Only mechanical issue is occasional security issue that resets with leaving key on an 10 minutes and then trying.
New Problem -- Parasitic Drain.66 amps (Meter in series with negative terminal and lead)
Conditions - Doors are closed, all lights off, and all electrical equipment verified working with no alarms indicated.
Steps Taken
1. Pulled all fuses in Engine Compartment Fuse Box one at a time (relays also) - no change, . Pulled Right Side fuse box fuses one at time no change
2. Pulled Left side fuse box fuses one at a time
a. Both fuse F and L are pulled drop goes to.02 amps or less
b. F By Itself reads.54 amps
c. L By Itself.11 amps
3. Removed all three BCM connectors at one time made no change.
4. Checked all connectors in HVAC console and in center console and no changes noted and no signs of damage
Other
Amp Readings start higher and then steadies out in a few seconds
Trunk has randomly opened (its an auto feature on key ring and door)
Sunday, February 23rd, 2014 AT 11:07 AM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try the abs unit that is probably it.
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Monday, February 24th, 2014 AT 7:28 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try unplugging the abs unit and remember there is always going to be a small drain on battery due to electronics like ecm/bcm radio etc. Also check the fusess underhood the abs fuse is there. The other drains don't really seem like that much as combined theyare less than 1 amp.
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Monday, February 24th, 2014 AT 3:26 PM

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