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James
James, Ford Technician
Category: Ford
Satisfied Customers: 3589
Experience:  Ford Senior Master Tech, Ford gas and diesel expert, ASE Certified
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F250: NO TAIL LIGHTS

Customer Question

NO TAIL LIGHTS
Submitted: 7 months ago.
Category: Ford
Expert:  James replied 7 months ago.
Hello, what year make and model is this vehicle?
Customer: replied 7 months ago.

f250- 2010

Expert:  James replied 7 months ago.
Inside the vehicle are fuse 30&40 good? Do the mirror park lamps still work if equipped?
Expert:  James replied 7 months ago.
Sorry I made a mistake. It's fuse 22 you need to make sure is good and has power
Customer: replied 7 months ago.

yes it has power and is ok just cked on ls kick panel

Expert:  James replied 7 months ago.
Are all parking light inoperative or do at least a couple work?
Customer: replied 7 months ago.

SORRY ALL PARKING LIGHTS ARE ARE INOP OK

Expert:  James replied 7 months ago.
Does this vehicle have a flat bed or is it original?
Customer: replied 7 months ago.

NO ALL ORIGNAL

Expert:  James replied 7 months ago.
The way this system works is it can detect a short in the wiring and disable itself to protect the circuit. It's possible the park lamps are currently disabled. To red able them you need a scan tool can that clear smart junction box module. If that doesn't turn the lights on the relay in the smart junction box could be bad. If you have a way to test or apply power we can test the park lamp wiring itself.
Customer: replied 7 months ago.

ok ill try the scanner then keep you informed ok

Expert:  James replied 7 months ago.
Sounds good
Customer: replied 7 months ago.

OK RESET ALL CODES STILL NO LIGHTS WILL A SNAP ON SCANNER RESET THEM OK

Expert:  James replied 7 months ago.
ok I will try and get a photo of the actual SJB connectors. That way you can see if power is coming out of the SJB to the park lamps.
Customer: replied 7 months ago.

OK THANKS KEEP ME POSTED

Expert:  James replied 7 months ago.
https://www.dropbox.com/sc/t3p6zpbl4jgyt1n/AABTpj9_XJoH6dlygqLzGy74a
Expert:  James replied 7 months ago.
The small connector is pin 6 and the large is pin20. If you don't have 12v when the park lamps on they the issue is the SJB.
Customer: replied 7 months ago.

ok james where is these connectors at in the rear by the bad connectors also what is a sjc junction box ???

Expert:  James replied 7 months ago.
The fuse panel on the passenger side is the smart junction box. That is where these connectors are.
Customer: replied 7 months ago.

ok cking box

Customer: replied 7 months ago.

it was fuse #30 james we found it not fuse #22 tech started to test all fuses found it

Expert:  James replied 7 months ago.
I'm sorry my diagram for the 2010 shows fuse 22 as being the park lamp fuse.

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