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Don - Mo Lurch
Don - Mo Lurch, Aftermarket & Factory Electronics
Category: Dodge
Satisfied Customers: 21039
Experience:  Cert. Dodge & Chrysler Warnty, Heavy Line Mech, Mobile Electronics. Sales, Installation & Repair for 30 years
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My 2011 dodge grand caravan battery is drawing amps when the

Customer Question

my 2011 dodge grand caravan battery is drawing amps when the engine is off and the battery dies in won't start at being off two minutes. I had the battery tested and it was fine any suggestion.
Submitted: 2 years ago.
Category: Dodge
Expert:  Don - Mo Lurch replied 2 years ago.


sorry for the delay............
Greetings...... “Hi, I’m Don (aka MOLurch) and I look forward to helping you!”
You need to locate the source of the Draw:

Turn Ignition off

Roll driver window down
Close all doors

Using a "Multi Meter (VOM)

Remove the negative side battery cable from the negative battery terminal.
The meter needs to be able to read at least a 2 -5 amps for this test to work.

Attach a multimeter(set the dial on the multimeter to measure Amps as per multimeters instructions) between the negative cable and the negative battery post.

Wait a few seconds to several minutes for the car to go into sleep mode - i.e. when you make the contact with the ammeter, the cars computer systems "wake up". After a bit of time they will go back to "sleep".
If the ammeter is reading over 25-50 milliamps, something is using too much battery power.
Go to the fuse panel(s) and remove fuses, one at a time.

Pull the main fuses (higher amp ratings)last.

Perform the same steps for relays found in the fuse panel.

Sometimes relay contacts can fail to release causing a drain. Be sure to observe the ammeter after pulling each fuse or relay.
Watch for the ammeter to drop to acceptable drain.

The fuse that reduces the drain is the draw.

Consult the owners' manual or service manual to find what circuits are on that fuse.
Check each device (circuit) on that fuse.

Stop lamp, heater, etc. to find the drain.
Repeat steps to test your repair.

You can also try unhooking the big wire from your alternator.

The alternator can sometimes have a shorted diode that can cause amps to flow through the alternator's power cable and through the shorted diode and into the case and through the bolts and back to the negative battery terminal.

Make sure to read the ammeter before and after unplugging your Alternator

IF you are not familiar with the above procedure or do not have a Meter or Test Light, locate a local "Reputable" Shop or Electronics Shop that can do this for you
apprx 2 hours labor

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