1999 Oldsmobile Alero P1632 ANTI THEFT FUEL DISABLED

Tiny
JACQUELINEK
  • MEMBER
  • 1999 OLDSMOBILE ALERO
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 116,000 MILES
Whle trying to clear a mouse nest from my blower cage, I had to remove the BCM from under the dash to get to the blower moter mount. In the process, the BCM box opened and the circuit fell on the floor. Upon completing the repair and putting everything back together, the car would start but immediately stall. Thinking the BCM was damaged, I replaced it only to find the same problem. I purchased a code reader and the only trouble code is P1632 - Anti theft fuel disabled. I have a two book manual that talks about a re-learning process to re-train the BCM, but it has not worked. I need to know how to fix this or how to bypass the anti theft device in order to get the car to start.
Sunday, July 12th, 2009 AT 1:24 PM

8 Replies

Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
Did you have the BCM programmed when you installed the new one?Also try this to relearn it, Attempt to the start vehicle. The vehicle will start and then stall.
Leave the ignition on until the Theft telltale turns off in approximately 10 minutes.
Turn the ignition off.
Restart the vehicle. The vehicle will start and on this attempt. The password is now learned.
Attempting to start the vehicle by bypassing the Passlock ll system or substituting parts without performing the password learn procedure may set a DTC P1631 and P1632.

If no password is received a DTC P1626, P1632 and U1064 may be set.
Post back with any other questions.
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Sunday, July 12th, 2009 AT 4:36 PM
Tiny
JACQUELINEK
  • MEMBER
  • 4 POSTS
Brian,

The new BCM I purchased was actually a used one and I was told it was plug and play. I have tried the re-learn process numerous times, but the security light never goes off.

You mentioned having the BCM programmed. How is that done? Right now, I can't start the car at all to take it anywhere.
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Sunday, July 12th, 2009 AT 5:15 PM
Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
Buying a used BCM was a bad idea, because when you program them to a vehicle it will only accept that VIN one time and one time only, if you remove it from one car to another it wont work because after programming and set up they become locked, which means they will only work on the vehicle they were origanilly in. There good for a ONE time programming. So the person that told you plug and play were very wrong, only solution is to buy a new one and have it programmed, I know I've made that mistake a couple of times on vehicles and had to replace the BCM for a second time, dont bother to relearn it untill you get another BCM.
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Sunday, July 12th, 2009 AT 5:26 PM
Tiny
JACQUELINEK
  • MEMBER
  • 4 POSTS
Brian,

Thanks for the suggestion, so if I buy a new BCM, I should just be able to follow the re-learn path and have it work? I'm a little skeptical as everytime I have an electronics issue, there seems to be multiple paths. Likewise, the original BCM that I pulled off when cleaning out the blower motor does not work and acts the exact same way. If it was originally with the car, why will it now not act correctly? Is the programming something that I should have done at a dealership or would they simply need to do the re-learn process on the car? Again, I can't drive the car anywhere, so can the program it if I only bring in the new BCM?

Thanks!
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Sunday, July 12th, 2009 AT 8:38 PM
Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
Yes you have to have the new BCM programmed and then do the theft deterrant relearn, I would go to the dealer and have it programmed, most local shops dont have the equipment to reprogramm anthing, and yes they need the vehicle at the shop to programm it. So you will have to have towed to the shop.
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Monday, July 13th, 2009 AT 5:29 PM
Tiny
JACQUELINEK
  • MEMBER
  • 4 POSTS
I've heard there are units that can be purchased to bypass the system. Are they are real solution that a shade tree mechanic can do themselves?
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Monday, July 13th, 2009 AT 5:45 PM
Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
As far as by pass systems I'm sure there out there, never used one, I always fixed them, as far as the shade tree mechanic, I dont know I'm not a shade tree mechanic, I'm a GM auto technician, but I guess so, why not. Let me know how you make out.
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Monday, July 13th, 2009 AT 5:54 PM
Tiny
KENTEWING
  • MEMBER
  • 3 POSTS
Did as you explained and now have U1064.
Do I need a new BCM? If so, where is it located and what do I do when I install it?

Cannot drive the car.
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Wednesday, June 11th, 2014 AT 1:01 PM

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