I have a 2010 Ford F-150 XLT 4.6 L with 208k miles. Recently my right headlight was cracked and then a rainstorm came and water got inside. The water burnt out my right hand turn signal and I believe some water may have gotten into the socket. I have since replaced the light bulb for the signal light and the light comes on but will not blink. Because of this my rear tail light blinks fast. I've already checked all my other light bulbs and they all function properly. And I have checked all my fuses both on the passenger side and under the hood. Is it possible that I need a new wiring harness? Or is there another problem I'm not aware of. And what other troubleshooting methods can I try?
Since 2009 the signal light flashing on the F150's is controlled by the BCM (SJB).
In your case you should try hooking up a scanner and clearing all the codes. That should fix both the front and rear issues which you're having with your signal lights
I have the obdlink mx+
Clearing the codes didn't solve my problem. I tried swapping the passanger signal light socket with the driver side to see if the socket was my problem but sadly that wasn't the problem.
When you selected Diagnostics and then selected Body Control Module were any codes present?
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With your rear right turn lamp hyper-flashing and your front right turn lamp behaving like there's a short to Power you'd expect to see something like a B123B and/or a B1248 trouble code in there
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Maybe just to be sure find somebody with Forscan or a bidirectional scanner and check the bcm again for codes
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In the meantime, what happens when you turn on the Hazard Lights?
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Do all of them flash normally or do the same lights behave the same way as when you have the Right turn signals activated?
I've tried the MX+ and I think it's too basic to do this. No 'B' codes.