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Electrical fault battery losing charge overnight not all the time bulb failure warning showing on dashboard all bulbs working

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  • 133 Answers

Carry out hydrometer test to check dead cells place amp metre between pos on battery and positive lead and see what the reading is and then start removing fuses untell you find curcuit is causing the leakage, depending on year you may find a lot of corrosion on fuses and terminals

Posted on Dec 30, 2013

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Posted on Jan 02, 2017

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SOURCE: electrical faults on jaguar

bulb failure light is from one of the relays found attached to each light... if one of them sticks the dash light will go on even if all the lights work.... solution.. buy inexpensive relays on line and substitute until you find the faulty one.....

Posted on Jun 12, 2008

  • 1114 Answers

SOURCE: Left rear brake light stopped working but bulb and fuses are OK.

take the bulb back out have someone sit in car apply brake get your self a circuit tester and check to see if this circuit is carrying efficient 12 volt current! some times in cold weather these bulbs get hot with long period of breaking and when released condensate and rust begins and you get what you have perhaps bad socket! this would be a ideal location to begin and probably end,

Posted on Jan 03, 2009

  • 142 Answers

SOURCE: Brake light bulb failure warning light

brake fluid low, or brake pads need replacing.

Posted on Jan 28, 2009

MrScary66613
  • 1990 Answers

SOURCE: Left rear brake light stopped working but bulb and fuses are OK.

These are Dual Function Bulbs. They control the Parking Lights and the Brake Lights. This Bulb is Burnt out on the Brake Coil inside the Bulb. I have actually seen Bulbs that were Bad But you could not Tell by jast looking at them. It should be fine with a New Bulb. Please Rate My Response! Thanks!

Posted on Feb 05, 2009

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SOURCE: my jaguar 2001 x type jag has a warning on

The DSC light stands for Dynamic Skid Control or in lawmen's terms Traction Control. If the light stays on you have a problem with this system. You will need to have it diagnosed by someone who has the tools and expertise to find the problem. More than likely you are going to have to take it to a Jaguar dealer.

Posted on Jan 27, 2010

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3 Answers

Battery drains overnight


Car And Deep Cycle Battery

Frequently Asked Questions

submenu.jpg How do I jump/bump start my vehicle?What is the Bottom line and Tips?How are Batteries made?How do I preform Preventive Maintenance?How do I Test a Battery?Is Vehicle's charging system OK or Large Enough?How do I install new batteries?How do I dispose of my old battery?How do I charge my battery?What causes my battery to drain overnight?Common causes of premature battery failures?How can I store batteries?What are they Myths about batteries?How can I increase the life on my battery?How long can I park my vehicle?How can I revive sulfated batteries?Why won't my engine start?

What causes my battery to drain overnight? Parasitic (or ignition key off) drain is the cumulative load produced by electrical devices, for example, emissions computers, clocks, security alarms, radio presets, etc., that operate continuously after the engine is stopped and the ignition key has been switched off. Normal parasitic loads are below 75 milliamps (.075 amps). When the parasitic load is greater than 75 milliamps (.075 amps), batteries will drain more quickly. Glove box, trunk, and under hood lights that do not automatically turn off when the door is closed or shorted diodes in alternators are the most common offenders. Cooling fans, power seat belt retractors, radios and dome lights left on, alarm systems, and electric car antennas have also caused batteries to drain overnight. Leaving your headlights on will generally discharge a fully charged car battery, with 90 minutes of Reserve Capacity (36 amp hours), within a couple of hours.

It is highly recommended, especially if you are using a sealed wet "Maintenance Free" (Ca/Ca) battery, that you allow it to thaw if frozen, fully recharge it in a well ventilated area with an external battery charger, remove the surface charge, and load tested both the battery and the charging system for latent damage from the deep discharge. You could have a damaged or bad battery. If the alternator is warm and the engine is cold, then check for a shorted diode in the alternator.

Below are some methods that are used to test the parasitic load with the engine NOT running, under hood light disconnected, all accessories switched off, and the vehicle doors closed:
  • Connect a 12-volt bulb across the positive and negative battery terminals to test the bulb and the battery. If it glows brightly, then remove the negative battery cable and connect the bulb in series between the negative battery cable terminal clamp and the negative battery terminal. If the bulb continues to glow brightly, then start removing fuses or connections to the positive battery post one-at-a-time until the offending electrical component is identified by the bulb dimming.

  • A better approach is to use a DC ammeter, for example a Fluke 175, inserted in series with the negative battery cable terminal clamp and the negative battery terminal or a clamp-on DC ammeter, like a Fluke 336 or i410 around the negative battery cable. Starting with the highest scale, determine the current load. If the load is above 75 milliamps (.075 amps) after the initial surge, then start removing fuses or connections to the positive battery post one-at-a-time until the offending electrical component is identified by the parasitic load dropping to within 75 milliamps (.075 amps).

Oct 17, 2015 | Cars & Trucks

1 Answer

Can I turn off the Trunk Open warning that is stuck on, on my dashboard?


Hello,
The obvious action to take would be to trace down the component that has failed/shorted/ etc and replace it/fix it so the light on the dash goes out properly. If you have done something like this already to no avail then you could try taking out the corresponding bulb in the instrument cluster itself. You may need to remove the cluster but the bulbs tend to come out pretty easily. I never recommend and am not currently recommending anyone ever take out any bulbs in the cluster as it can be misleading especially upon resale. But for daily driving purposes and convenience, ill throw that option on the table.. Hope this helps

Jun 25, 2015 | 2001 Jaguar Vanden Plas

1 Answer

I have 3 warning lights come on on the left side of my instrument cluster.


I would start with the battery charge light. Check how many volts is at the battery with the car running. If it is any more than around 14 or any less than 12.5 with the engine running, there might be your problem. I have seen many times where an alternator overcharging will reek havoc on a vehicles electrical system.

Jun 10, 2015 | Cars & Trucks

1 Answer

Number plate lights not working


have you the correct wattage bulb (s) fitted?
how do you know the bulb failure light is refering to number plate lights?

Jun 29, 2014 | 2005 Rover 75 1.8

2 Answers

2006 Volvo XC90 AWD V8 with H7 halogen headlights always displays 'headlight bulb failure' warning even though my headlights are both working fine. How do I fix this?


Try to check the bulb on the light unit the fault is given,checking the connector,or even renewing the bulb,probably the resistance of the bulb is down in bright but can not noticed. It had happened to a customer of mine on a BMW 528i ,even the lights were working fine,I renewed the faulty stated by the vehicle ECU and then the warning on the dash gone.

Nov 01, 2013 | 2004 Volvo XC90

1 Answer

Unknown light indicator in the dashboard


it is a rear bulb failure light,have you checked the reversing light bulbs...?

Jun 18, 2010 | 1995 Toyota Camry

2 Answers

I have a fault - parkling bulb failure


I believe the parking lights are the lights that come on when you move the headlight switch to the middle setting. My S60 has 3 settings for headlights, daytime running lights (off or 9 o clock position), parking light (middle or 10:30 position), and lights on (top or 12 o clock position). Put your light switch into the middle position and check the lights from the front of you car. They are usually located on the side of the headlights and are orange. If the fault is on, you have a bulb out (most likely) or loose wire connection (not as likely).

Jun 13, 2009 | 2003 Volvo S60

1 Answer

Left rear brake light stopped working but bulb and fuses are OK.


These are Dual Function Bulbs. They control the Parking Lights and the Brake Lights. This Bulb is Burnt out on the Brake Coil inside the Bulb. I have actually seen Bulbs that were Bad But you could not Tell by jast looking at them. It should be fine with a New Bulb. Please Rate My Response! Thanks!

Feb 05, 2009 | 1999 Ford Expedition

1 Answer

Bulbs frequently burning out.


The bulbs last forever on my 240s, but they don't last on my '94 850 and '98 XC70. The dash bulbs are hard to fix and the radio bulbs are soldered in. One solution is to always keep the dash lights dimmed about 30% from full brightness, and don't leave the headlights on during daylight. I keep them on but need to replace at least one headlight bulb each year. You could also check the battery voltage with a simple voltmeter just to be sure the voltage regulator is within spec. If the charging voltage is too high, the battery life might also be shortened.

Jan 07, 2009 | 2001 Volvo S60

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