Question about 2006 Ford F-150
After towing a while the trailer battery is dead. Battery is ok. I checked for power at the correct fuse and could find no power there either. I am checking with a good voltmeter.
This is most likely an issue with the wiring harness going to the connector on your truck you need to start at the connector at the back of the truck and walk your way forward to the breakers under the hood (rarely is the 12 power on the trailer harness connecter simply fused since it is a higher current circuit, it usually uses a breaker just like your headlights). Before you do this find a copy of the wiring diagram for your truck so you know what you are looking for. Also a dead battery normally will not fully charge in the normal time span of a trailer being towed as you can typically figure over 6 hours to charge the type of battery (deep cycle) that is in a trailer.
Posted on Apr 15, 2014
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Posted on Jan 02, 2017
You can purcahse a tester which will connect into the F-150's wiring harnes. If the led lights up, the problem is witht he trailer's wiring harness. this tester will indicate the proper operation of the brake light and turn signals.
Posted on Jan 20, 2009
SOURCE: 2003 ford escape, change battery
you may have to have the computer reflashed. Only the dealer can do that also. that is very bad for all electrical components in the car.
Posted on Nov 22, 2008
It appears that the alternator is still not charging the battery.Charge the battery up,and refire the truck.Check voltage with a voltmeter,directly off the back of the alternator.Most all alternators of your year model have the voltage regulator built into the alternator.If the alternator isn't producing any voltage,then it is bad,even if it is new.I have had defective new parts before.
Posted on Aug 10, 2008
SOURCE: Fuel gauge doesn't work.
Disconnect the wires from the sending unit. Using an ohmeter, measure the resistance of the internal coil. If there's a good continuity (1 to 1.5 kilo ohms) chances are, the wires are pulled. If resistance is more than 1.5 kilo ohms, replace the sending unit.
Posted on Jun 01, 2009
SOURCE: Instrument panel went dead
Checked Every fuse in the fuse box (no small task).This includes #4 - Power point Instrument Panel, #14 - Day time running lamps (auto lamps doesn't work nor does auto lock), #27 - ignition switch run feed, #35 - Instrument Cluster, #41 - Instrument Cluster, #42 - Delayed Accessory, #45 - Ignition switch run/start feed, #102 - Door locks body security module, #103 - Ignition switch, #110 - Ignition switch, & #116 - Ignition switch. But I also check all other ones as well, they all register OK. AC panel & radio work. Turn signals work. Mileage does not work, trip computer does. So, basically, everything works except auto head-lights, auto locks, and the dash cluster (no MPH, RPM, mileage display, Fuel, Temp, Tran Temp, and Oil Pressure).
Posted on Sep 30, 2009
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4 way flat molded connectors allow basic hookup for three lighting functions; right turn signal / stop light (green), left turn signal / stop light (yellow), taillight / license / side marker (brown) and a ground (white).
4 way tow vehicle side.
4 way trailer side.
5 Way Systems
Same as 4 way system listed above but adds a extra blue wire for brake signal or auxiliary power. Used on pop up camper trailers or utility / boat trailers.
5 way tow vehicle side.
5 way trailer side.
6 Way System, Rectangle Plug 3/4 inch by 1 inch 6 way rectangle connectors right turn signal (green), left turn signal (yellow), taillight (brown), ground (white). The red and blue wire can be used for brake control or auxiliary. Use on a small motorcycle trailer, snowmobile trailer or utility trailer. Can also be used as custom wiring on trailers with 3 light/wire systems. See "Tow Vehicle Taillight Wiring" below.
6 way tow vehicle side.
6 way trailer side.
6 Way Systems, Round Plug
Round 1 1/4" diameter metal connector allows 1 or 2 additional wiring and lighting functions such as back up lights, auxiliary 12v power or electric brakes. Note: The black (sometimes red) 12v and blue electric brakes wire may need to be reversed to suit the trailer. Check with a test light or VOM. Uses: horse trailer, travel trailers, landscaping trailer, car trailer, etc.
6 way tow vehicle side.
6 way trailer side.
7 Way Systems
Round 2" diameter connector allows additional pin for auxiliary 12 volt power or backup lights. Uses: heavy duty landscaping trailer, car trailer, boat trailers, horse trailer, travel trailer, construction trailer, etc. Check with a test light or VOM.
7 way RV flat blade tow vehicle side.
7 way RV flat blade trailer side.
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