Door/Trunk Lock

Hi, I have a 2004 Pontiac Grand Prix GT. My door lock went out. I changed the fuse and still not working. The chims will sound when I use the auto lock but the doors will not lock. The trunk will mot open either when I hold the lock to the open position. I"ve changed the fuse three times and every time I get a small spark when I do so. What might be the problem.

Which fuse? Many fuses have B+ voltage (12 volts) present even with the ignition off.

Could be a body control module (BCM) issue.

Which fuse? Many fuses have B+ voltage (12 volts) present even with the ignition off.

Could be a body control module (BCM) issue.

Its a small #15 fuse thats goes in the passenger door fuse box.