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Recharged battery, reconnected leads wrong short circuited, no power

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Fried a main fuse or melted a wire ?

Posted on Feb 13, 2014

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Flat battery. Recharging but why is fuse board making lot of clicking noises and sounding alarm as battery charges?


1st disconnect the battery from the circuit board and charge the battery separately. Then reconnect the battery and see if it resets itself normally.

Aug 29, 2015 | 1998 Porsche Boxster

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Jump-start Jaguar X-type? it's more complicated than you think.


Jump Start of Vehicle Battery


IF THE BATTERY YOU ARE USING TO JUMP-START THE VEHICLE HAS RECENTLY BEEN CHARGED IT MAY STILL BE GASSING, COVER THE VENT PLUGS OR COVERS WITH A DAMP CLOTH TO REDUCE THE RISK OF EXPLOSION SHOULD ARCING OCCUR WHEN CONNECTING THE JUMP LEADS.

Turn off all electrical ancillary circuits such as radio, lights, indicators etc. If the reason for a flat battery is unknown the condition may be as a result of an electrical short circuit, so care must be taken during the Jump-start process and subsequent to connection to ascertain if this is the case. A short circuit or un-isolated ancillary load can cause arcing when the jump leads are connected, a small 'crackle' is normal but any spark or flash is an indication of a problem that should be rectified before attempting to Jump-Start the vehicle.

Jaguar do not recommended that the vehicle is jump started, and If at all possible it is preferable to replace the flat battery with a suitable fully charged unit rather than jump-start the car. However if it is done it should be carried out by suitably qualified personel. Garage services and services like AA and RAC homestart should be used whenever possible.

Obviously there are occasions when carrying out this proceedure yourself is the only practical way proceed.

If there is no option but to jump-start the discharged battery should be removed and recharged immediately after jump starting to avoid permanent damage.

High quality, heavy duty Jump leads must be used as the current consumption during starting is very high, and a voltage loss will be
exhibited though the jump leads, increasing current requirement.

Make sure that the Jump Start battery is of the same voltage as the vehicle, and suitable to provide the required starting current.

MAKE SURE THAT THE ENDS OF THE JUMP LEADS DO NOT TOUCH EACH OTHER OR GROUND AGAINST THE VEHICLE BODY AT ANY TIME WHILE THE LEADS ARE ATTACHED TO THE BATTERY. ARCING AND VERY RAPID DISCHARGE CAN CAUSE THE BATTERY TO EXPLODE.

Connect the jump leads in the following sequence.
Connect Positive Jump Lead to Jump Start battery positive terminal.
Connect Positive Jump Lead to Vehicle battery positive terminal.
Connect Negative Jump Lead to Jump Start battery negative terminal.
Connect Negative Jump Lead to a suitable vehicle ground point at least, 300 mm (12 in) from the battery terminal e.g. engine lifting bracket, do not do not connect directly to the vehicle battery terminal.

Start the vehicle and rev to 2000 rpm, then allow tickover for 5-10 minutes.

Do not attempt continued repeated starting of the vehicle, this will cause heat build up at the terminals and though the jump leads degrading the leads performance and adding to voltage loss.

Allow 3-4 minutes recovery time for the leads and Jump Start battery between attempts to start.

Before disconnecting the jump leads, switch on the heated rear screen, to reduce the alternator voltage peak when the leads are removed, as this can damage electronic equipment.

Disconnect the jump leads in the reverse order to the connecting sequence taking great care not to short the ends of the leads.

Do not rely on the alternator to restore a discharged battery.
Ensure that the battery is recharged or replaced with a fully recharged unit
as soon as possible.

Following Jump-starting of a compleately discharged battery, you may need to carry out a Green ECM drive Cycle, this will allow the powertrain control module to 're-learn' idle values, and most likely need to re-enter your radio code, details of these can be found at. http://www.bluejag.co.uk

on May 31, 2010 | Jaguar X-Type Cars & Trucks

1 Answer

Help: 1994 Toyota land Cruiser: left turn signal works but when I turn the right turn signal on it blows the 7.5 amp fuse disabling the turn signals.


Hi Steven
Do the simple stuff first. Check the obvious points at which the circuit may get shorted. Light Bulbs and sockets. Wires in the boot or rear lamp area. Down the steering column. Follow harness to front then rear. Age of vehicle and how it's used may provide clues. Trailer Connector Wires & Connections to harness.
(Where could they Link Together)
If that fails
You need to isolate each circuit that is blowing a fuse and trace the fault to a location. Probably when you find the fault (ground short or wires shorted together) it will become obvious that the two separate circuits are linked.
So... start with the right turn signal

Finding Shorts It's a pain.... but.... here's the process!
Remove the Fuses that keep blowing.
Make up a long lead from the battery positive terminal.
Say 4 meters.
Add a cheap 5A or 10A circuit breaker in the lead wire.
Make a probe tip on the end of wire. (needle, pin. nail)
This saves you going through many fuses.
The circuit breaker simply resets when it cools.
The best way to locate the short is to Note the wire colour code (or use iPhone to take photo).
Supply power via the made up jumper & circuit breaker to the suspect circuit wire to prove that it blows the circuit breaker.
Then.... split the circuit in two...
Half way down the vehicle (say front door step) Lift the plastic trim off and find those colour coded wires.
Prove these are the wires by pushing sharp probe through the insulation. Circuit breaker blows....
Cut the wires. Try Rear wires vs Front wires and Determine if the short is in the Front section or the Rear section.
Then use the same process over again on the section which is faulty (shorting) Divide in two. until you narrow the short location down.
Keep in mind that the short could suddenly disapear if you get close & simply move the section with the bare (shorted) wire which touches the chassis or another wire.
Slip some heat shrink tubing over these cut wires and resolder them later. This is better than crimp terminals which may cause problems later.
Good Luck

AutoReset Circuit Breaker 12v 20A

Power Probe PP3LS01 Power Probe III Circuit Tester Kit with Lead Set Red...

There are cheaper versions


Power Probe PP3LS01 Power Probe III Circuit Tester Kit with Lead Set Red...

Jul 08, 2015 | 1994 Toyota Land Cruiser

1 Answer

How do you check fuse and switches to power hatch door?


First you will need a multimeter. Then you will need to know how to use it. If you do have one and know how to use it then make sure to first disconnect one of the battery terminals. Once you do that set the meter to the ohm's position RX1 or whatever the lowest ohm's setting there is on that meter and put each lead on either side of the fuse. If you get no reading then the fuse is bad. However it blew for a reason and that may be a short circuit in the system. If the fuse looks like it is burnt on the inside then there is probably a short circuit.

The next thing is to check the wire that brings power to the line side of the fuse. You will have to reconnect the battery terminal to see this. If there is power and the fuse is good then you need to check the door switch to the hatch door and it's wiring especially the terminals. If everything checks out OK then you probably have a defective power hatch door motor.

All of this is kind of complicated if you are not familiar with automobile wiring or how to use a multimeter.

Good luck,

Marty

Jun 26, 2014 | 1998 Oldsmobile Bravada

1 Answer

No injector pulse on daewoo nubira i change computer box but still no pulse wot must i look for or replace


Check for an injector fuse in the fuse box under hood. Pull off one injector connector and use a testlight to check for a steady power signal on one of the two wires, with key on. Should have power on one wire. If not, pull all injector connectors off and check again-a shorted injector can shut down the injector drive circuit-if power now, reconnect injectors one at a time. If one connection causes power to be lost, that is a shorted injector. Replace it. If still no power and fuse is good, you will need a wiring diagram to check injector drive circuit.
If you have voltage at the injectors with key on, move the test light ground lead to the battery positive post, and put the test light probe on the injector wire that did not light the test light. Now have a helper crank the engine over-you should have a blinking light on this ground circuit. If no light, or light is not blinking, the ground circuit between injector and computer is bad. See? Steady power is available to injector anytime key is on. When the computer internally grounds the injector circuit for a split-second, the injector is energized, causing the pulse.

Mar 22, 2013 | Cars & Trucks

1 Answer

How to fix an electrical circuit fault on peugeot 307


How To Test For A Car Battery Power Drain
Hi , A fully charged battery is 12.6. The link below is a short you tube video on how to find out if a car battery has a power drain, The video starts with the guy loosening the negative lead to the battery then turns the multimeter on and sets it to 20 DC, plug bottom of lead to current mode and places 1 multimeter lead on top of the terminal inside the negative lead and the other multimeter lead on the negative lead and wiggle the negative lead off the battery, The current being drawn from your battery should be less than (5.0) 50 mille volts..... The reason he takes the negative lead off after connecting the multimeter this is to save any codes from the car as technically the battery isn't disconnected..... CHEERS..
How to Find Car Battery Drain

Diagnosing car battery that drains overnight

Nov 08, 2012 | 2005 Peugeot 307 1.6

1 Answer

Recharge battery Cadillac Deville 2005


You do not need to remove the battery to charge the battery. When you connect the charger you MUST be careful to connect the charger's positive lead to the positive terminal to the battery and the negative lead to the negative lead to the battery before you turn on the battery charger. Connecting the charger leads the wrong way around most likely damage the vehicle's electronics.
When you finish charging the battery turn off the charger before you disconnect the charger leads. This will prevent arcing between the leads and the battery.

Jan 14, 2012 | 2005 Cadillac Deville

2 Answers

My car keeps loosing power. i replaced the battery and the altinator and the battery just wont stay charged for long.


REPLACE BATTERY CABLES.CHECK ALTERNATOR FUSE AND CHECK ALTERNATOR BATTERY FEED WIRE OR VOLTAGE REGULATOR WIRES NOT DAMAGED AND HAS A LOOSE CONECTION.MAKE SURE DRIVE BELT NOT SLIPPING.HAS THE CORRECT TENSION.

Aug 30, 2011 | 2000 Hyundai Elantra

1 Answer

97 audi a4 no power/battery fuse?


Sounds like either the battery leads are on the wrong way round, or the starter main cable is touching something and shorting to earth. Retrace your steps and check your connection locations.
Either that or its a dead short through the starter. Remove main cable from back of starter and tape up incase of short. then reconnect battery. If ok now then your looking at starter motor.

TL

Jan 01, 2009 | 1998 Audi A4

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