1997 Chrysler Town and Country Battery dead every morning

Tiny
BRITCHEY72
  • MEMBER
  • 1997 CHRYSLER TOWN AND COUNTRY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 210,000 MILES
Once the van starts it is fine but has to be jumped every morning. Belt seems to be fine. Interior lights are turning off. Replaced PCM short time ago for unrelated problem. Battery replaced last week.
Do you
have the same problem?
Yes
No
Monday, October 12th, 2009 AT 12:27 PM

3 Replies

Tiny
IMPALASS
  • EXPERT
Hello -

To better assist you is your model the LX, LXi, or SX and what is the engine size in liter?

Please go to Auto Zone (AZ) or O'Reilly's (OR) and for FREE they can pull the codes to the car. Most important: Once they check your codes, if they find something and you don't get it fixed and need to get back with us, please make sure you tell us exactly what the code was, number and all. Example, if the code was E0568 O2 Sensor bad. Then make sure you give us all of that. While there for FREE also they can bring their tester out and check your battery and alternator.

The most important part here is checking the alternator. Please make sure your battery is fully charged before doing this.
Was this
answer
helpful?
Yes
No
-1
Monday, October 12th, 2009 AT 5:21 PM
Tiny
BRITCHEY72
  • MEMBER
I hooked up my snap on 2500 red brick. The only code I got from the pcm was p1389 no asd relay output voltage at PCM. It also had abs codes don't think they are related but included 36 bus communication error, 34 system under voltage, 37 system over voltage, 30 pump motor circuit not working properly. Also I had two messages in the bcm airbag message not recieved, eatx (tcm) prndl message not recieved.

Battery and alternator tested good but there is a 1.88 amp draw on the battery when every thing is off and I don't know were to begin to look to find the draw.

It is a cab and has a meter radio and computer but I disconnected all of these things at the battery last night to see if any of them were the problem but it was still dead this morning.
Was this
answer
helpful?
Yes
No
Tuesday, October 13th, 2009 AT 3:02 PM
Tiny
IMPALASS
  • EXPERT
Hello -

Okay......try this...........

Parasitic Draw Testing

© Copyright 2000 - 2006 Chuck Kopelson 12/01/2003
Updated December 14, 2008

by Wayne O. Wenzlaff and Chuck Kopelson 4/15/2007

What is parasitic draw? All vehicles draw some power from the batteries when the car is shut off. Certain accessories such as clocks, radios remote door openers and alarms always need power. The normal power used is called parasitic draw. It is always a very low draw so it doesn't run the battery down. If you install accessories like shortwave radios or plug things like invertors and portable refrigerators into the accessory socket and operate them too long without the engine running you can drain your batteries to the point where the engine won't start. If there is an electrical short in the vehicle or a malfunctioning accessory it could be drawing much more than its normal load causing a drain on the batteries. If you leave your door open and the inside lights stay on all night you could drain the battery down till the car won't start. My 98 draws 3.5 amps with the front door open. Usually what happens is the truck is dead when you first go to start it.

The first thing to do is a test for a major short. Remove the positive and negative cables from the batteries. Put an Ohm-meter across the positive and negative cable. If your reading is close to 0 Ohms then you have a direct short. I read 150 ohms on my stock 98. You need to trace the short before you can perform the following tests.


http://www.2carpros.com/forum/automotive_pictures/248015_Volt_Meter_1.jpg



In order to check for parasitic draw, you need to be careful so you don't ruin your meter. At the risk of sounding like an elementary teacher, here's what you need to do.

1. If you don't already have one, get a digital meter capable of reading up to 10 amps DC. Sears sells them for less than $50 - I bought one on sale for $14.99 that I leave in my truck.

2. Your battery must have a reasonable charge for this test - it won't work if your battery is dead. Quick proof - if your dome light operates normally, you're fine. My truck wouldn't start and the batteries were down to 5.5 volts so I put a charger on the batteries overnight. They are now 12.2 V. When I started the truck the voltage went to 14.3 V so the alternator is working.

3. Check to make sure ALL loads are turned off. Unplug anything you may have plugged into the cigarette lighter. Remove your keys from the ignition. Close all doors so the dome lights are off.

4. Disconnect the thick positive (Red) cable that goes down to the starter.

5. To start make sure your meter is set to the 10 amp DC range. Some meters have a special connector for the red probe when you are reading current. The meter pictured on the left has one jack for high amps and one for low amps. If yours does, make sure the meter end of the probe is in the right connector. You can either do this next step by just holding the meter probes to their respective contact points (you won't get a shock from 12 volts) or you can use probes with alligator clips to snap them in place so your hands are free to do something else.

6. Connect the positive probe to the battery - either battery is fine, electrically speaking, since they are connected together by the negative (Black) wires. Polarity on digital meters doesn't matter because they are autosensing.

7. Connect the negative probe to the red cable that is still connected to the vehicle. Make sure this cable and your probe do not touch ground.

8. If there is a severe current draw (more than 10 amps) it will either pop a fuse in your meter or destroy it outright. That's why you need to test for a short, otherwise, your meter should now be reading the current drain on your battery.

9. If your vehicle has an alarm system or remote locks, the current draw may be around 2-3 amps for a few minutes after you last close the door. This is normal. If you're not sure, wait at least 20 minutes after you last open or close a door before you take a reading.

10. If everything is normal, you will read less than 35 milliamps, or .035 amps. If the current drain is higher than that, you need to find out what is draining your batteries: You can start by pulling fuses until the load goes away. If that doesn't reduce the draw, you need to look for a wire that is corroded or frayed.


http://www.2carpros.com/forum/automotive_pictures/248015_Battery_and_Meter_1.jpg



Thank you very much for the donation

Please let us know if what the final fix was for your car so we can better assist others. Thanks!

Find a car repair manual for your car repair questions.
Was this
answer
helpful?
Yes
No
Tuesday, October 13th, 2009 AT 9:06 PM

Please login or register to post a reply.

Recommended Guides