2001 Grand Am GT - Battery Drain

Tiny
MMULVANEY
  • MEMBER
  • 2001 PONTIAC GRAND AM
My 2001 Grand Am GT 3.4 V6 with 37,000 miles loaded with all the accessories has a drain on the battery at all times. I put a test light between the negative battery terminal and cable to confirm the drain. I pulled all the fuses at the driver's and passanger's side of the dash which did nothing to eliminate the draw. I also took the wiring off of the alternator, wiring to fuel injectors, and trunk lock and light.

The only way I can eliminate the current draw is to pull maxifuse #2 and #3 at the engine compartment fues block. Maxifuse #2 controls right electrical center, fog lamps, radio, body function control module, and interior lamps. Maxifuse #3 controls left electrical center, stop lamps, hazzard lamps, body function control module, cluster and climate control system.

I unplugged the body function control module under the dash and also took out the radio/cd player and continued to have this current draw.

I am at a loss of what to do now without dismanteling ALL of the wiring and dash related components.

Thanks for your help!
Thursday, January 5th, 2006 AT 4:48 PM

3 Replies

Tiny
MMULVANEY
  • MEMBER
  • 2 POSTS
The draw is 2- 3 amps If the car sits overnight it will barely crank over The battery is a new 6 year Delco. If I unhook the battery cable at night it won't go dead.
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Friday, January 6th, 2006 AT 1:51 PM
Tiny
SEBASTIEN CAYER
  • MEMBER
  • 3 POSTS
I know this is a old question. Have you ever found what was causing a battery drain? I have the same issue on my car and I am at a lost. I have 2001 pontiac grand am gt
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Monday, February 6th, 2017 AT 1:06 PM
Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
You need to start a new question, and PLEASE include the mileage and engine size. This is a conversation between two people. None of the other experts will ever see it or have a chance to reply. That does you a disservice. You also need to list the exact symptoms and observations, and the results of any testing that has been done already.

Since GM redesigned their generators for the '87 model year, they have had a real lot of charging system problems. Those are more common than battery drain problems, so we need to be sure we're working with the right symptom.
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Monday, February 6th, 2017 AT 1:27 PM

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