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It is a 2007 f150 pickup and there are no other codes that come up.

Vehicle: 2007 f150 4.6L

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B1676 Anti lock brake system

What can cause this without setting a code is the IAC (idle air control) valve which is a non serviveable item and is part of the throttle body.You can do a throttle body cleaning this may help maintain its target RPM.

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