2012 F-150 Parasitic Drain on Fuse position 52

Asked by DIYerF1502012 Sep 06, 2020 at 12:24 AM about the 2012 Ford F-150 Lariat SuperCrew 4WD

Question type: Maintenance & Repair

Fuse description in manual: "Run/start – Electronic power assist steering, Blower relay coil". I know the drain is on this fuse, because the drain stops if I pull this fuse. I tried replacing the Blower Motor Resistor BL3Z19E624A and that did not solve the issue. I also tried pulling the Blower Relay in position #3. The drain continued with this relay out. So, I'm thinking the drain is coming from the power steering. Any suggestions how I can further isolate the issue to the faulty component? I'm a diy-er. I've done work on my cars before, but I'm not a trained mechanic.

4 Answers

DIYerF1502012 answered 4 years ago

For further troubleshooting, I found and pulled the connectors to the Power Steering Gear, and the battery did not drain overnight, so this looks to be the area of the issue.

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Guru99MZDS answered 4 years ago

Did you find the problem with electronic power steering battery drain. My 2012 f150 doing the same thing.

1 people found this helpful.
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PullingMyHair answered 3 years ago

I have the same thing on my 2013 f150 eco. It draws close to 3 amps and when I pull Fuse 52, it drops to 20 milli amps. Did anyone figure out how to resolve this?

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