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Where do i put the 40 amp fuse to recharge my trvel trailer battery.

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Look in the fusebox under the hood on the drivers side on the inside of that cover it will tell you where to install the fuse also look for the trailer wiring under the hood

Posted on Apr 22, 2009

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1995 Mercury Grand Marquis blowing 40 amp fuse as soon as I turn on ignition


It will help if you can identify the 40 Amp fuse that is being toasted when the key is turned.

I looked briefly at a fusebox diagram and found 3 circuits protected by a 40 Amp fuse. The Lamp circuit protects several circuits which have smaller rated fuses on each separate wire. The 40 Amp protection seems to be a safeguard if all the smaller circuits are active in total. Turning off the automatic headlights, should reduce power drain.

The next circuit is the Rear window defroster. Can easily pull 40 Amps, but once the 40 Amp fuse breaks, it should have no effect on the engine.

The last circuit, on the cars with Trailer Tow or Police package has a
40 Amp fuse on the Battery charge Relay. This is a remote possibility. But the engine should be able to run without an Alternator for several minutes using Battery power.

Have them check the fuel pressure. The Inertia switch could have tripped while the car was being repaired. It does not explain the wiring short, but can explain the no start condition.

Again, if the same 40 Amp circuit is overloading, identify the circuit with the fuse box diagram.

Feb 18, 2014 | 1995 Mercury Grand Marquis

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Toyota hybrid-want to run a wire to charge my trailer battery. Where do I pick up the power?


on your trailer plug look for a blue wire that is for aux power to charge trailer battery when your parked diconnect plug or it will drain car battery, also look in fuse box for empty holder marked aux or trailer you may have to put a fuse in it, did you put in trailer plug or was it factory ?you may have to run your own power wire if you do put i fuse in line for protection.good luck larry hope this helped or gave you some ideas.

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Suburban towing package fuse box location


2005 Suburban Z71 4WD I had similar situation. No 12 volt positive to 7 trailer. Under my hood at the fuse panel, the red 12v + wire was connected to Stud # 1 which is on the left side of fuse box. There is a square fuse right next to this stud. I put a 40 amp fuse in it. I use this power to charge a battery in a trailer as I am hauling.

May 15, 2012 | 2005 Chevrolet Suburban

1 Answer

Have no power out of the trailer plug 4or 7 prong,where should i look for the trouble?


Not sure which part you mean no power.

For the New Body style 2004 ( not a Heritage or Lightning model )

If both Stop / Turn pins & the parking lamps, might want to check the ground pin to make sure it is good ( or what you are using for ground on the test light / meter ).

The trailer tow parking lamp circuit is fuse #10 to the parking lamp relay

The stop / turn circuits also have fuses on each one, Fuse #36 & Fuse # 42 ( R & L ).

The 7 pin has fuses for the battery charge pin ( hot in run position ) and the reverse circuit ( hot in run & when in reverse ), Reverse is also fuse # 10 to the trailer tow reversing lamp relay & the battery charge pin is fuse # 106 to the trailer tow battery charge relay.

Could be all the fuses are blown, or what you are using for ground on the meter / test light is not a good ground.

Mar 16, 2011 | 2004 Ford F150

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Need fuse panel layout for ford f150


I don't know if this will help but here are the position by numbers. I have the whole owners manual that I can send as a PDF if you want. Hope this helps. Good luck

Fuses

Position Amps Description

1 20 Trailer tow back-up and tail lamps

2 10 Air bag diagnostic monitor

3 15 Power locks

4 15 Air suspension

5 20 Horn

6 15 Audio system

7 15 Parking and tail lamps

8 30 Headlamps

9 15 Daytime running lamps and fog lamps

10 25 Auxiliary power point

11 - Not used

12 - Not used

13 - Not used

14 60/20 4WABS/rear anti-lock brake

15 50 Air suspension compressor

16 40 Trailer tow battery charge and stop/turn lamps

17 30 4WD transfer case shift motor and clutch

18 30 Driver power seat

19 20 Fuel pump

20 50 Instrument panel fuse panel ignition switch feed

21 50 Instrument panel fuse panel ignition switch feed

22 50 I/P fuse panel battery feed

23 40 I/P blower

24 30 PCM power

25 30 Power windows

26 - Not used

27 - Not used

28 30 Trailer tow electronic brake

29 - Not used

Relays

Position Description

1 Windshield wipers HI/LO speed

2 Windshield wipers run/park relay

3 Washer pump relay

4 Fuel pump relay

5 Horn relay

6 PCM power relay

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4 Answers

F150 Ford 1998 is there a fuse for a trailer and where is it located? Thank you


There are a few fuses for the trailer tow adapter.

1st, is theodd location on the 97-98, engine mini fuse panel has a 20 A fuse forthe stop / turn lamps. Have seen it covered in tape from the factory onsome 97-98 MY trucks.
This is on page 142 in the owners 1997 manual, all the revisions for the 1998 owners manual I have seen do not include this fuse box for some reason.

Download a PDF version from Ford, for the 1997 MY at :

https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

This is a picture of the Power Distribution Box, additional relay box and engine mini fuse panel with the covers off. The 20A in the upper right panel with the red base, is the trailer stop/turn fuse.
3b8aa6c.jpg

The others :
1. Power Distribution Panel / engine compartment fuse panel
Fuse #1 - Trailer tow back-up and tail lamps
Fuse #16 - Trailer tow battery charge and stop/turn lamps
Fuse #28 - Trailer tow electronic brake

2. Instrument Panel Fuses ( cab fuse panel by hood release )
#23 - trailer tow battery charge relay

Nov 11, 2009 | 1998 Ford F150 Regular Cab

1 Answer

2000 Dodge Ram - No hazard flashers


Possibly blew out the hazard flasher unit. Check the flasher unit (usually there are 2, one for directionals and one for flashers).

Jul 07, 2009 | 2008 Dodge Ram Pickup 1500

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