1997 Pontiac Grand Am BCM

1997 PONTIAC GRAND AM
100,000 MILES • 6 CYL • 2WD • AUTOMATIC
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COMPUSMITH
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Sometimes while driving my speedo and tack will just go whacky. I turn off the car and start it again and all is well. 10 minutes later, I'll have trouble with starting it again. Passlock system leaves a lot to be desired. Sometimes it'll start everytime and the very next day it will not start, like today for example. I have the "Theft System" light on constant. It starts for about 1 second and then dies. I hear the fuel pump charge the line when the key is in the ON position. Some think a new ignition is the cure. I replaced it about 4 years ago. I'm told, "in this vehicle, if your key turns the cylinder, its not the ignition". Many mechanics tell me it's the BCM. Then there are some that tell me my vehicle doesn't have a BCM. Can you confirm if my vehicle has a BCM and where I can find it? My Chilton's makes no mention of a BCM. PCM yes but, no BCM :-(
Aug 10, 2009 at 11:18 PM
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DOCFIXIT
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Hi
has no BCM have you tried pulling codes from PCM?
Aug 11, 2009 at 9:55 AM
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MMPRINCE4000
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As Doc said no BCM (Body Control Module). You will usually find a BCM on higher end GM cars like Caddys.

Try resetting the Pass Lock:

GM PASS LOCK RELEARN- Ignition to "run" position, try to start and let key return to "run" position
Approx ten minutes security light will go off
Turn key "off" and wait 5 seconds
Repeat 2 more times for a total of 3 relearns.
Turn key off, then start it
Aug 11, 2009 at 10:49 AM
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