where is the air bag control module on 1997 Pontiac Bonneville

i had a freind mech plug in to check the codes cause the air bag light stays on att.he said the the control mod was dead it did not respond when he pluged is his snap on code i bought a used one but dont know where the darn thing is

Asked by for the 1997 Pontiac Bonneville
I looked at the repair manual and the picture isn't very good, but it looks like it's under the passenger seat.
I would be hesitant to go and replace the module based on the information you presented, I would try to find the problem first, but it sounds like you already bought a module, so I guess it's too late.
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More important, if you do this improperly look for a good dentist. You will set off the air bag!!!!!!!