Question about 2000 Nissan Altima

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Dead short in park light curcuit how do i trace fault

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How do you know you have a short?
Does a fuse blow continually?
Does it blow without any bulbs in all four sockets?
Does it blow with the light switch unplugged?

Just a place to start.
For me,I would have a complete wiring diagram and my VOM Meter out and study this for awhile. Think it out logically,not guess. Then test.

Posted on Aug 05, 2010


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How do i tace the cuuse

trace the cause of a lamp fail 97 wrangler.
fuse blow for shorts, (preventing the fire)
so, there are only 3 ways to find shorts,

  1. visual inspection ever inch of shorted wire, (luck happens)
  2. pull all loads off the wire feed, is short not gone (BINGO?>)
  3. use an AMMETER, this is what we use, to get them all.

one nice way to find shorts,(not wanting to blow 100 fuses)
is to remove the blown fuse ATC and put in a Circuit breaker ATC fuse in that place, not it trips , cools off and repeat the trip
this allows for fast testing (meter) and pulling loads, checks.

your car is jeep TJ
and the wiring is free here.
the schematic tells you all things that can short to this node.
click wiring,
Tail/park shorts, (lots of loads, the highest of all wires it is)
answers USA only not export and no DRL light option.
we are tracing the complex path called PARK (tails)
see chapter 8W that be IT.
and page. pdf page # 8w-40-7 (pdf #93)
turn the dash dimmer to lowest, still blow fuse.
no, then the short is not in cab (easy huh?)
so parks are shorted, see 8W-50 (pdf 134)
see park there/ see those fues # which one blew, that is a big CLUE.
my guess is fuse 1, (others are head lights)
F1 blows
main HL switch park pin 9 ,black yellow wire feed.
see that?
see 8w-50-4 then page 5 , see all rear parks.
then see page 8w 70-20 for fogs.

there you go... i cant teach you how to use and ammeter.
so google that.
see all those junction C connectors, all can be pulled to isolate that short.

see connector C110 , pulling that isolates front parks
conn C322 , pulling that isolates tail parks.

as you see park feed is hug (simple) but huge, lots of places to short
and big time short if trailer wiring hacks are on car. look first.

Feb 12, 2015 | 1997 Jeep Wrangler

1 Answer

Parking lights wont come on

Tail & dash lamps operational ??
1 Add test equipment,test for power/ground signals to park lamp bulb holders
2 Fault trace from there.....

If you need further help, reach me via phone at

Feb 10, 2014 | 1990 GMC Sierra

1 Answer

ECI Fuse keeps blowing

What ever was blowing the fuse intermittently now has a full blow dead short. Trace it through to the unit and check for connections shorting out or the unit itself shorting out.

Jan 10, 2014 | Cars & Trucks

1 Answer

Brake park light switch issues

trace the short and fix it is all i know

Oct 26, 2013 | 2005 Dodge Magnum

1 Answer

How can i trace a short in my 1998 mercedes e320

check remote batteries for replacement. they may be dead as for the door locks and trunk. as for the fog light, parking brakes situation a short would make them not work. not stay on. the electrical would be fused for that. a short prevents electric from getting to the load or device. i would not think that fog lights would be linked to parking brakes. did you mean parking brake light? the fog lights should be on a switch by themselves or connected to main headlamps

Mar 25, 2012 | 1998 Mercedes-Benz E-Class

1 Answer

When i press the brake the dashboard lights turn on

Possible that the brake light switch shorts with the circuit, sometimes this can be a brake switch ground shorting through the dash boarrd ground circuit and turns the light on.
You need to disconnect the brake switch and trace the line. also check if the rear brake lamp circuit is shorting in the tail lamp assembly and so turns the dash /park light circuit ON.
This can happen if the tail lamp assembly /holder is shorting. So remove and check the tail lamp circuit/ the park/brake lights.

Sep 16, 2011 | 2003 Mitsubishi Galant

1 Answer

Short in horn and park lights kills batt i traced and checked horn switch and light switch

By tracing the horn and light switch, did you find the short? If the horn is shorted, then it should only run the battery down if the horn switch is made. Or the horn is pressed. So I would suggest the light switch is going to be where the problem is.

Nov 30, 2010 | 1999 Dodge Intrepid

2 Answers

My park ave has an ele, problem, runs the battery down after its sits all nite

You most likely have a "dead short" this means that you have a wire touching the metal of the car and draining the battery. If you are not. or do not want to spend hours tracing the problelm, then take the car to a repair shop and have then trace the short. This will be well worth the money spent.

Let me know what you find out.

Jun 21, 2010 | 1993 Buick Park Avenue

1 Answer

When ya turn headlights on drains battery.also until couple days ago when you would turn h-lights off parking lights stay on

sounds like u have a wire shorting out somewhere? as for the draining is ur alternator working??? try a curcuit tester on wires to headlights and alternator.

May 07, 2009 | 1992 Buick LeSabre

1 Answer

Possible short?

Check the ground connections, front an back. A short will pop a fuse. A bad ground will only handle so much power, then it becomes an open curcuit. Frankster016

Oct 24, 2008 | 2000 Dodge Durango

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