short need help!!!

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Jul 11, 2011 | 02:09 PM

cajunspice

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From: montz

short need help!!!

I have a short in my 95 f 350 psd 4x4.I have two news batteries. I have a draw with the test light trick. The only way i can kill the test light draw is if I pull maxie fuse 20 & 13 . I have pulled high beam switch,ALT,Idm,the two big plugs on frame feeding the rear lights,ECM,Gpr,buzzer. The only thing that kills it is to unplug the big pass through on driver side on fire wall. My Head light swatch has five wires that are HOT two big wires and three littles wires.How many wires should be HOT on the head light switch with everything trunded OFF?????

Jul 11, 2011 | 02:42 PM

Hussler

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From: Medford Oregon

I count three, To headlight switch ...

+12V Fuse #3 BLK/ORG (Headlight Feed)

+12V Fuse #8 LtGRN/YEL (Dome Feed)

+12V Fuse #4 TAN/WHT (Parking-License-Marker Feed)

From headlight switch ...

(RED/YEL -> To Headlights) (BLK/PNK -> To Dome Light) (BRN -> To Park-License-Marker)

Jul 11, 2011 | 02:50 PM

DIYMechanic

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From: Orrville, Ohio

HERE is a link to a pin out for that switch. Click "Electrical Schematics" on the left side and scroll down. It's about the fourth picture down.

Jul 11, 2011 | 03:15 PM

cajunspice

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From: montz

Thanks guys! I will get back with yall after i do a little truble shooting to night.

Jul 16, 2011 | 08:45 AM

tjbeggs

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From: Silver Lake Dunes, MI

Please explain how you have your test light hooked up? Pretty much the only way to test for a draw that I know of is with an Ohm meter. Lets make sure you are testing correctly before we start to look at causes of the issue. Please don't take it the wrong way! I just want to make sure we don't spin our wheels.

Jul 24, 2011 | 10:04 PM

cajunspice

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From: montz

I have a test light on the passanger side battery hooked to the negative post to the battery cable to complet the curcit. The test light will light up very very very dim if you dont have a draw. My test light,lights up very brite with doors closed and everything turned off.The driver battery is un hooked. If i hook the negative cable back to the baterry than take the cable back off and hook up the test light in between the negative cable and post... I have no draw untill i pull the head light on and turn them off.I will then have the draw until i touch the cable to the post. Than i have no draw till i turn the light switch back on , or pull the highbeam back or forward,or turn lt or rt with on key on. I get a bright test light a draw. Its like i trip a relay and something is staying on. I can turn the draw off and on i just cant find it.I have found many shorts with a test light on the negative side of a battery like this. I may be doing something wrong please help Thanks

Jul 27, 2011 | 10:35 PM

cajunspice

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From: montz

Thak you guys very much for all the help on my 95 f 350!! I found a short in the wires going to the 3rd brake light.The wire were runing over the beam in the roof. The three were smashed and shorted on the beam.Thanks for all the help!!