Rear Passenger Running Light Cluster Out

[sitruunatee]

Hello everyone,

I'm going through this with the Ford Dealership but they seem to be stumped or not understanding the problem.

Recently my rear passenger taillight running lights are no longer illuminated in any situation. I've pulled all of them out and tested them on the driver side and they work fine. The brake lights and turn lights work fine. They are telling me that my bulbs are burnt out (they are not) and that I need to have a recall done (that's resolved by turning it off and on). I suggested it might be a fuse issue, but they didn't know of a fuse that controlled that.

I've waited a few weeks trying to get appointments with my dealership, and I keep getting pulled over in the mean time and eventually I'll end up with a ticket and not a warning.

Does anyone know if this a fuse issue or something else I can fix? I have access to ForScan if needed for diag too.

Thanks!

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[commadorebob]

Did you do a continuity check on the cabling to see if the connector is simply loose?

 

[Darnon]

Your dealership is correct. There is no fuse for the taillights; the BCM prevents overloads by disabling the circuit for the drive cycle. To which there is indeed a recall to address the values being potentially too conservative resulting in normally operating taillights being turned off.

 

[HeyBales]

While the key cycle does indeed get rid of the false error condition the BCM thinks exists - there is nothing that says it is only going to happen after you've been driving for a bit. Even if that seems to be the way others have been hit with it.

Yours may be in that state right from key on.

Don't recall if the Hazard button uses those lights, which requires no key on - perhaps a test.

But need that BCM update to rule it out.

Hopefully if your courts are like ours - if you show up with paperwork showing it was an error condition and you got it fixed now - ticket removed.

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