Question about 1985 Chrysler LeBaron

1 Answer

The power loss light kept coming on in our 1985 lebaron. So replaced the battery, still kept losing power, replaced the alternator, still is losing power. What should I be checking next and is it possible that the alternator is not installed correctly? The original alternator had 3 plugs on it but the new one only has 2. Perhaps the wrong alternator?

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,702 Answers

The power loss light has nothing to do with the alternator, the power loss light is part of the on-board computer system it is the equivalent of the check engine light on newer cars it is on because one of the sensors is not working on the car.

this is how to retrieve the code that is turning on the light.

turn the key on ( do not crank the engine ) turn the key off, turn the key on, turn the key off, turn the key on. ( never crank the engine ) this all has to be done in les then 10 seconds so to re-cap key on, off,on,off, on.

the power loss light will start flashing. all codes are 2 digit, for example a code will look like this.

flash,flash, pause (about 1 second), flash, flash,flash this code would be a 23 , the first two flashes would be a 2 the pause is the separator the next 3 flashes are a 3 so the code is 23, i hope you under stand.

after you get the code let me know what it is and i will look it up for you....good luck

Posted on Mar 21, 2011

  • 4 more comments 
  • smiller848 Mar 21, 2011

    Thank you. ugh...I had 4 of different codes I believe as there were longer pauses in between a couple of the numbers. This is what I got 12, 41, 51, and 55. I really appreciate your help.

  • john nail
    john nail Mar 21, 2011

    the 12 is the start of test, the 55 is the end of test so that just leaves the 41 and 51.....code 41 problem with charging system, code appears if field control fails to switch properly ( i guss i spoke to soon i am not sure what the plug in is that is no hooked up but it sounds like you need it, the voltage regulator is built into the power control module and i think the plug in that is not hooked up is the control cicuit.)....code 51....problem with oxygen feed back system. ( repace O2 sensor )

  • smiller848 Mar 21, 2011

    thank you very much. This makes a lot of sense as we were wondering what the 3rd plug should go to. Any idea how to rectify this or where to plug the 3rd plug in since there is only 2 on the alternator? Can I get an alternator that has the 3 plugs?

  • john nail
    john nail Mar 21, 2011

    you will have to get a diferant altnator....sorry

  • smiller848 Mar 21, 2011

    that's what I figured. Thank you very much for your help. I am just a girl who has learned much from my grandfather who was a diesel mechanic but sadly I lost him almost 10 years ago however I still insist on doing as much work on my car as possible myself before taking it to a garage. Again, I thank you very much!

  • john nail
    john nail Mar 21, 2011

    your welcome, and you have found another old diesel mechanic...good luck



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

My 2004 not charging charge light not coming on an abs light comes on an truck loses power an dies an battery is dead 2004tacoma

Take the truck to a Autozone or O'reilly Auto parts and have the battery and the charging system tested with a special tool, they can advise you what is going on and it is a free service.

Mar 01, 2017 | Cars & Trucks

1 Answer

What is wrong when the power loss light is on. It has a new alternater on it

use voltmeter to find out if the NEW alternator is good. or bring it to auto parts store that does free alternator & battery check. make sure all battery terminals & grounding connections are shiny cleaned.

Oct 04, 2015 | 1984 Chrysler LeBaron

1 Answer

Power loss, indicator ,picture of engine in dash,how to over come this power loss

If you're losing power it probably has something to do with your battery being discharge, a faulty alternator or a bad belt. Autozone can check your battery and alternator out for you for nothing. The belt you can visually inspect for cracks, shiny patches, breaks, or missing teeth.

Mar 24, 2015 | Cars & Trucks

1 Answer

2001 grand am batt light came on then start losing power inside car radio loss power instrument lose power

Bad battery or alternator have both tested and replace the bad part also check battery cables both power and ground and power cable from alternator(since sometimes its something cheap and easy like that)

Jan 05, 2012 | 2001 Pontiac Grand Am SE

1 Answer

Battery light w/ power loss

how can it be that your battery and alternator are good but u still loose power??? then u'll have to check
1) your battery
a) turn your car off then check if your battery keeps regular Voltage should be around 14
b) turn your car on including all LIGHTS and FANS and see if its still 14 if its not 14 and going down then you have a power loss in your battery and your battery doesnt provide enought charge to Alternator

2) Alternator
For your car its OK to use battery with 75A if you put lets say 100A then you'll simply kill your altenators brushes

Jan 29, 2010 | 1998 Dodge Caravan

1 Answer

''Power Loss'' light comes on, what does it mean?

it sounds like you need a new alternater. to be sure, most autoparts stores will check it for free, but you'll have to take it off yourself.

Nov 30, 2008 | 1986 Chrysler LeBaron

1 Answer

Power Loss light and subsequent stopping of the car

It may be the alternator going. If u have a battery light comming on and other power sources weakening or cutting out and ur car dies then that usually means alternator. If u can get it to a parts store like checker or advanced they usually do a free alternator and battery test right there under the hood to let u know if one or both are bad. And if it's the alternator i believe those are pretty easy to do.

Nov 06, 2008 | 1987 Chrysler LeBaron

Not finding what you are looking for?
Cars & Trucks Logo

792 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chrysler Experts


Level 3 Expert

81342 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers


Level 3 Expert

814 Answers

Are you a Chrysler Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides