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Dashboard panel lights remain lit when car is turned off and key is removed, need to take off neg. battery cable.

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If they go out within 5 minutes, you have automatic headlight delay. If they stay on forever, you have an electrical problem

Posted on Jul 28, 2008


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2006 Malibu not turning over.

You never remove the + battery cable , unless you remove the negative first .
it is actually neg that u want to remove when u work on your car, when you remove the neg cable the whole car cannot make a connection or short, there are parts of the car that hold juice, once you remove the negative cable there is no path for current to travel.
look at it this way, most all metal in the car is the ground and pull the ground cable at the battery and there is no circuit.

there are older cars that were positive chassis, complete opposite, but thru electrolysiss the metal quickly deteriorated.

trust me remove the negative cable, not the positive.

the best thing people could do is make a quick disconnect for the neg. terminal for service.

Your best bet , take your vehicle to a qualified ASE certified repair shop . Would not want you to hurt youself , batteries can explode with sparking when hooking up a battery .

Mar 09, 2017 | 2006 Chevrolet Malibu

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How do I open the trunk when the battery in the trunk is disconnected? Key fob and dashboard button don't work.

Get a pair of jump leads, either get under the hood or under the car, find the heavy cable to the starter motor, clamp the positive cable to it, ground the neg on the chassis, clamp the other neg to the help battery. Tap the remaining pos clamp on the help battery terminal to see if there is excessive sparking. If only a light spark or no spark attach clamp and operate trunk release as normal. If there is a big spark try option 2 which is make up a cable that uses the cigarette lighter socket, an auto parts house can sell you an adapter to suit the socket. Connect to another battery and there should be enough juice to operate the trunk lock. Take care.

Nov 03, 2014 | Cars & Trucks

1 Answer

I have a 1993 Isuzu rodeo and the dash lights come on at start up and some times remain on. When they remain on it drains teh battery. Any suggestions?

sounds like a bad diode in the alternator put a test light between the neg cable and the battery if the light is on you have a draw unplug and remove the cable from the alternator and see if the light goes out if so its bad

Oct 11, 2012 | 1993 Isuzu Rodeo

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I have just done my oil and filter service in the garage. The mechanic forgot to reset the service light. I did it myself acc to this forum suggestions. However, when I check the remaining km status on the...


Dec 25, 2010 | 2006 Audi A4

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Reset check engine light 2000 Grand AM

take the neg wire off of the battery for 30 mins, or if the problem has been solved it will turn off after 40 trips with no faults

Sep 07, 2010 | 2000 Pontiac Grand Am GT

1 Answer

1995 toyota corolla new battery wont stay charged. i can jump the car run it shut it off and restart it but not the next day.

First, have the new battery tested & fully recharged.

You may find you problem at any point along the way but here is the proper procedure.

Now, you will need a digital voltmeter to really perform this test properly and be prepared to have a blown fuse or two, as you will be testing the system by removing and replacing them.

Install the freshly charged battery, making sure the terminals are clean and well protected with vaseline or grease. Install the Neg (-) connection last when installing the battery, remove it first when taking the batt. out. Check your negative connections.

Before connecting the Neg. cable, take a reading with the voltmeter to see what the current voltage is, it should remain fairly constant with a good strong battery when disconnected well over 12.6 volts.

Connect the Neg cable and connect the multimeter again, you should now see it start to drop, depending on what is draining the battery, fast or slow. If you note this drain is heavy, remove the neg cable again.

Make sure all things are turned off, brake lights are off when pedal isn't being pushed, no interior or trunk lights left on.

Next, start the car, the multimeter voltage reading should increase or hold steady, no drain or the alternator is not charging and could actually be draining the battery. Check belts and wiring harness plug-in.

If you haven't found your problem, make note of the fuse positions and remove them all. Connect the battery Neg cable and test for drain again. If the car isn't draining anymore, install a fuse at a time until you find the one causing the drain of voltage & then you'll have to trouble shoot that system.

There is a tool that fits over the wiring, that will indicate current usage without removing the fuses and such, available at most parts stores, but until you have one, this is the way to find the problem. Isolate it.

good luck

Mar 11, 2010 | 1995 Toyota Corolla

2 Answers

02 ford focus battery dies over night having problems checking for a draw in the system any help

Disconnect the negative battery cable and put a test light between the cable end and the neg post. If there is a draw, the light will light. Remember the doors need to be closed and the underhood light disconnected (these are draws as well). If the light is lit there is a draw. Removing fuses until the light goes out can pinpoint the circuit. Finding the actual short can tougher.

Jan 16, 2010 | 2002 Ford SVT Focus

1 Answer

Check engine light is on after battery change

you caused a default in the computer, remove the positive cable for 10 mins to reset the computer, this will solve your problem, make sure you do not have the keys in the car when doing this.

Nov 17, 2008 | 2004 Chevrolet TrailBlazer

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