BFC draining battery


Asked by Guru1PW8 Apr 10, 2020 at 04:14 AM about the Pontiac Grand Am

Question type: Maintenance & Repair

Got the car used. Had plain key, all metal. No remote entry fob (car is
equipped with key less entry) receiver under rear shelf and the factory stereo
replaced with aftermarket one, they didn't use a conversion harness and/or
adapter module. They cut the factory plug off and hard wired the unit in.
When I tried to start it, it though I was stealing it. I used the 2.2k resistor trick,
it starts most of the time. There is an 160 ma parasitic drain on the battery
from the BFC fuse, even when its asleep. What functions does the BFC
control/monitor. Only security or lights, a/c, ect.  Dan   

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