What is the most common fuse that needs to be pulled to stop the battery drain. Parking lights? Radio? Examples. Horn?>1999 ford ranger?
What is the most common fuse that needs to be pulled to stop the battery drain. Parking lights? Radio? Examples. Horn?
>1999 ford ranger?
Just pull the negative battery cable!
The most common cause of "battery drain" is a dead cell in the battery. The second most common is a add on entertainment system. By pulling the ground cable all of those problems are eliminated and if the battery is drained when you go to use it then you know it is the battery.
Pull all of them.
Yup.
Add one a night.
Or buy a $12 multimeter and figure which circuit is bad in 5 min.
1.Glovy or trunk light on. 2. Alternator diode shorted. 3. Bad audio amp not turning off internally.
I don't know about fuse, but a simple -temporary- option until you locate the cause of the battery drain would be to disconnect your battery overnight or when you know you won't be driving the vehicle for awhile, that will guarantee nothing can pull on the battery and drain it, but you will lose any preset radio stations. I did have a radio go bad on my old truck that was causing my battery drain. Hope you get it fixed soon, good luck.
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In a modern computerized car, the computer does not shut off when the engine is off. It sleeps, but needs electricity to keep its memory alive. When it sleeps, the current draw drops to a very low level, but it is drawing current and will drain the battery over time. The computer is generally called the ECM, so if you want to pull a fuse, then pull the ECM fuse.
An electronic clock draws minuscule current.
A vehicle security system draws minuscule current.
High power audio amplifiers are wired directly to the battery and generally do not have an ON-OFF switch, and draw much more current than the sleeping ECM.
The small current that these devices draw when not being used is called "parasitic" current. Parasitic current can drain the battery.
To stop all current flow, remove the negative battery cable, but find out first if the security system on your car or the radio require a security code if the battery is disconnected or goes dead.
-General automotive mechanic since 1972
Some good answer so far. Though if we have battery going flat overnight or say just a few days? Then get battery checked out first. Followed by a parasitic drain check by an auto electrician. Easy enough for them to check what circuit is pulling power and if to high. Once we have a faulty circuit found. They can nearly always pinpoint culprit and we can. Fix that or install a kill switch for that circuit.
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