Brand new battery, brand new alternator, battery light still on after resetting it

Tiny
JIM TRAVIS2
  • MEMBER
  • 2005 CHRYSLER SEBRING
  • 2.7L
  • V6
  • 2WD
  • AUTOMATIC
  • 110,548 MILES
Already change the transmission control module, clean all the grounds. My battery light still on. And the car shut off going around the block. The only thing I haven't changed is the PCM or ECM. Any suggestions on something else that might be helpful?
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Wednesday, July 29th, 2020 AT 2:03 PM

53 Replies

Tiny
AL514
  • EXPERT
Hello, is this car equipped with a battery temperature sensor. Located under the battery? Heres the resistance test: Disconnect the heater blanket from the vehicles electrical system. Using an Ohmmeter, connect the leads across the two wire terminals coming from the heater blanket. A resistance value of 220 to 280 ohms should be present. If not replace the blanket. And is there any diagnostic trouble codes stored? The light is turned on by a PCI BUS circuit, with the voltage regulator built into the ECM.
Heres some other info I found in All Data:
The PCM uses the ambient air temperature sensor to control the charge system voltage. This temperature, along with data from monitored line voltage, is used by the PCM to vary the battery charging rate. The system voltage is higher at cold temperatures and is gradually reduced as the calculated battery temperature increases.

The ambient temperature sensor is used to control the battery voltage based upon ambient temperature (approximation of battery temperature). The PCM maintains the optimal output of the generator by monitoring battery voltage and controlling it to a range of 13.5 - 14.7 volts based on battery temperature.
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Wednesday, July 29th, 2020 AT 2:35 PM
Tiny
JIM TRAVIS2
  • MEMBER
Okay, there's no battery temperature sensor under the battery, I checked. The new symptoms are loss of fuel response, in others words it acts like it is going to shut off. The radio stopped working. I cleaned all the grounds double checked my work. Had the alternator checked out and it is good. I pulled out the ECM and had it sent off. Thank you all for replying back so quickly and thank you for your time.
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Wednesday, July 29th, 2020 AT 7:17 PM
Tiny
AL514
  • EXPERT
Let us know what you find out about the ECM, if it doesn't do the trick we'll have to do some voltage drop testing. I would take a real good look at the ECM pins too, a loose fitting connection or bad wire, there's many possibilities.
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Wednesday, July 29th, 2020 AT 8:28 PM
Tiny
JIM TRAVIS2
  • MEMBER
I sure will, hopefully it will be the fix. Thanks again.
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Thursday, July 30th, 2020 AT 9:41 AM
Tiny
BABY_BLUE1981
  • MEMBER
  • 2004 CHRYSLER SEBRING
Electrical problem
2004 Chrysler Sebring V6 Two Wheel Drive Automatic 82000 miles

i have a 2004 chryler sebring convertible. Had a 500 watt amp (alpine) deck, and sub. Ever since I have my headlights and dash lights flickering to the bass. Battery warning light has come on a few times. I have has everything looked over in my car by 7 different shops. There is nothing wrong with my car. Or the charging system. It a 120 amp alternator. With a load test its peeking 90 amps. Battery stay well over 12 volts. No one can tell me why its doing this. I have had a power cap put on it still had the problems. So took the cap out. Had the amp change. Grounds to the amp and the car all checked. 8 guage power wire straight from the barrery to the amp. Also not sure if this means anything but my engine light came on a week after having this sterio installed it was saying the o2 sencer. Had it tested but nothing wrong with it. Engine light went away on its own came back a few on a few times. Happends when the sterio it playing loud bass. Please help me. Melinda
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Saturday, August 1st, 2020 AT 11:10 AM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT
The audio system is drawing too much power for your vehicle's charging system to handle. If you wish to keep the system without damaging your vehicle's charging system I suggest having a separate battery installed soley for the audio system to run on. Otherwise you will have to turn down the bass. Engine code for oxygen sensor can come on for faulty wiring to oxygen sensors or for a faulty catalytic converter. Symptoms of either of these would be poor fuel mileage.

Thanks for using 2CarPros. Com!
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Saturday, August 1st, 2020 AT 11:10 AM (Merged)
Tiny
BABY_BLUE1981
  • MEMBER
I just found out today that theres to high of voltage from the battery. It gave a code for that for the first time. Could it be the computer in the car. The alternator is only working at 75%.
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Saturday, August 1st, 2020 AT 11:10 AM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT
The battery is only used to start the vehicle, the alternator is what is used to run the vehicle. Suspect faulty voltage regulator. The regulator is built into the alternator.
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Saturday, August 1st, 2020 AT 11:10 AM (Merged)
Tiny
BABY_BLUE1981
  • MEMBER
I had thought the same thing voltage regulator or the pcm or the sensor under the battery. That had alll been ruled out. Im at a loss with this car.
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Saturday, August 1st, 2020 AT 11:10 AM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT
Check all ground and power wires for the charging system to ensure they are clean and tightened properly. Is battery new? Check water level of battery.
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Saturday, August 1st, 2020 AT 11:10 AM (Merged)
Tiny
BABY_BLUE1981
  • MEMBER
Its a maintenance free battery. And all grounds had already been checked a couple weeks ago. And problems stayed after that. And battery terminals tightend.
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Saturday, August 1st, 2020 AT 11:10 AM (Merged)
Tiny
BABY_BLUE1981
  • MEMBER
And battery is testing as new. And I had a bigger battery tested on it. And broblem was still there.
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Saturday, August 1st, 2020 AT 11:11 AM (Merged)
Tiny
ERIKA WALTERS
  • MEMBER
  • 2004 CHRYSLER SEBRING
  • 3.0L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 140,000 MILES
When I was driving yesterday, on my dash, the brake and battery light came on. What could be the problem?
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Saturday, August 1st, 2020 AT 11:11 AM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT
What was the voltage at when you say it was high? Was it greater than 19 volts? If so then the alternator is at fault. Have you replaced the alt. Or just tested it?
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Saturday, August 1st, 2020 AT 11:11 AM (Merged)
Tiny
CARADIODOC
  • EXPERT
Start by having the charging system tested by a mechanic, not at an auto parts store. Tell me what they find for "full-load output current", "charging voltage", and "ripple voltage". The test just takes a few minutes.

Is that the red "brake" warning light or the yellow "anti-lock" brake system light?
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Saturday, August 1st, 2020 AT 11:11 AM (Merged)
Tiny
BABY_BLUE1981
  • MEMBER
Last night while driving with the stareo on. The battery light came on. After about 30 mins. Turned car off started it again and the warning light was gone. It left a code. The guy just told me it it said voltage to high. But last week while under load tested battery and 14.5 volts about. Alternator was giving out 90 amp peeking. But staying mostly around 80- 85 amps. Problem has been here for a month. The code only showed up today. Whatever is doing it is cousing these probems. When the car is off but sterio playing with bass the lights dont flicker. At least not nearly as bad. I have another apointment with a sterio place tommorrow. Do u think it could be something to do with the way the sony xplod deck was huked up. Could it cause my car to do all this. Thanx so much for helping me. Melinda
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Saturday, August 1st, 2020 AT 11:11 AM (Merged)
Tiny
ERIKA WALTERS
  • MEMBER
It is the red brake light.
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Saturday, August 1st, 2020 AT 11:11 AM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT
It is possible. Have you tried disconnecting the power wire of the system? If the lights are flickering than there can't be too much voltage rather not enough. There is something screwy with the audio set up. Either the amp is not adjusted properly or perhaps the speakers or aftermarket radio are not hooked up properly.
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Saturday, August 1st, 2020 AT 11:11 AM (Merged)
Tiny
ERIKA WALTERS
  • MEMBER
My dad tested the alternator and it is putting out 17.8 at idle. He wants to know how to test the ripple voltage and the full load output current?
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Saturday, August 1st, 2020 AT 11:11 AM (Merged)
Tiny
BABY_BLUE1981
  • MEMBER
I have taken it back 5 or 6 times where I bought and had the stereo huked up. They regrounded the amp. Changed the amp. Changed the setting on the amp. I had sugested to them maybe its something to do with the after market deck. They said no. That the fuse would blow. When the stereo is not on, the car shows no problems. Its when the bass hits. The speakers in the car I have not changed. I am leaning towards something with the deck itself or with the huke up of it. Thats why I have made another apointment with a new audio place. This is a very annoying problem. Oh and one more this im not sure if this mean anything. When the car is running without stareo it takes 30 amps. When stereo on it takes peeking 90 amp. The amp fuse is only 25. Why is it not blowing with the extra 50 amps. I think the deck might be 10 or something.
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Saturday, August 1st, 2020 AT 11:11 AM (Merged)

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