v8hotrodboy
Active Member
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Hi guys, got a question for you. How long does the BECM take to go into sleep mode? As my P38 4.6 HSE has started draining the battery over a day or so. It did this a while ago and i disconnected the RF reciver and that seemed to fix it for about 6 months. But its doing it again!! If i look through the drivers window i can see the red park light staying on. Will this only stay on due to the RF reciver or can something else make it stay on? I know it should go out when the BECM goes into sleep mode. I may try disconnecting the RF completly as i only took off the feed wire. Any tips?