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Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23001
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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F150 lariat: 2004 f150 larial 5.4l 4x4 loaded camper in bed.

Customer Question

2004 f150 larial 5.4l 4x4
loaded camper in bed. had power llllast week. suddenly this week no power to the camper. checked no power in the tow harness. all fuses and replaced tow relay in fuse panel. still no power in harness.
Submitted: 1 year ago.
Category: Ford
Expert:  A. Penland replied 1 year ago.
Where does the power for the camper connect to?The pin trainer connector under the rear bumper or did they hard wire it in?
Customer: replied 1 year ago.
factory harness hard wired in
Customer: replied 1 year ago.
7 pin connector,
Customer: replied 1 year ago.
a;; power thru the harness is gone
Expert:  A. Penland replied 1 year ago.
Thank you. All power for all the lights or just certain lights?
Customer: replied 1 year ago.
only using the charging circuit, no need for lights
Expert:  A. Penland replied 1 year ago.
Is this a heritage F150 or the new body style?
Customer: replied 1 year ago.
new body style
Expert:  A. Penland replied 1 year ago.
Thank you. The models are different.There are two fuses for the charging circuit.Fuse #106 and #13 in the dash fuse box send power to the trailer charge relay. Check and make sure those two fuses have power with the key turned on.Please let me know.
Customer: replied 1 year ago.
they are both good have checked them and replaced relay05, still no power
Customer: replied 1 year ago.
rechecked 13, dosnt seem to power the with key on, fuse tests good
Customer: replied 1 year ago.
what I mean is it tested with a light and had no power at 13 with key on. tested fuse out of panel and it checks ok.
Expert:  A. Penland replied 1 year ago.
Below is the wiring diagram of the circuit. Try removing the relay and use a piece of wire or a paper clip and jump pins 30 and 87 of the relay and get power to the camper.
Customer: replied 1 year ago.
will try and get back soon
Expert:  A. Penland replied 1 year ago.
Do you have power on fuse #16 in the dash fuse box with the key turned on?
Customer: replied 1 year ago.
removed relay 05 installed wire like you said. have power
reinstalled relay 05 and everything is working fine now
Customer: replied 1 year ago.
no power in the camper, so have to check that out, battery is good must be converter
Expert:  A. Penland replied 1 year ago.

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