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Battery Charge light on, system is charging
Trying to find a scope... The DIY shop was down at the time, but said it was being fixed. I'm headed back there next week.- rray
- Post #24
- Forum: Electrical
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Battery Charge light on, system is charging
Update from original Thread: Replaced alternator and Fusible link. Cleaned all Positive and Negative connections I could get to. Including the battery. Check battery voltage with and without a load, same for alternator. All numbers are normal. Battery charging fault light stays on, but the...- rray
- Post #22
- Forum: Electrical
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Battery Charge light on, system is charging
Don Hall> I've replaced that wiring harness. It is the fusible link from the alternator to the battery. No luck. My light comes on as soon as the key is turned to the on position. Then stay on while the engine is running. All volts to and from the battery and alternator are normal. New alt and...- rray
- Post #19
- Forum: Electrical
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Battery Charge light on, system is charging
Stamp11127. Off to Oscilloscope land I go.. I think the DIY garage on base may have an Oscilloscope. I'll head there this week to find out. Thanks again for the info.- rray
- Post #18
- Forum: Electrical
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Battery Charge light on, system is charging
Don_Muddiman: I've since changed out the 3 fusible link, which is the connection to the alternator. The 3 pins. Mr. Sticker shared a video where the mech tests the 3 pins. I'm going to try that next. At least for voltage at this point. Thank you for the information. I'll keep posting till I find...- rray
- Post #15
- Forum: Electrical
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Battery Charge light on, system is charging
Mr. Sticker, Thank you for the information you posted. I agree with the swapping out of parts. However, I had already ordered the Fusible link and changed out the Alternator. Neither one of those items fixed the problem. I've cleaned all the electrical connections I could get to. No luck. It...- rray
- Post #14
- Forum: Electrical
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Battery Charge light on, system is charging
I keep hearing the PCM may be the problem. The light came on with the OEM alternator which we found was working, after I replaced it. I kept the new alternator on since the vehicle has over 160,000 miles on it. I figured it could not hurt. Is there a software update to the PCM from Ford that may...- rray
- Post #9
- Forum: Electrical
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Battery Charge light on, system is charging
Battery is fine, charging system is fine under no load and under a full electrical load. Light just stays on.- rray
- Post #5
- Forum: Electrical
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Battery Charge light on, system is charging
I replaced the alternator based on what PEP boys told me. However, that was not the problem. The system works fine. My numbers are about the same as you posted. So battery is good and so is alternator. The light stays on all the time. I did not check resistance between the batter and the...- rray
- Post #4
- Forum: Electrical
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Battery Charge light on, system is charging
2004 Expedition 5.4. Battery light came on, with the original OEM alternator, however system seemed to be charging. PEP boys said it needed an alternator, replaced alternator, light still on, battery is good, alternator is putting out between 13.8 and 14 volts under load. Voltage drops to 10.6...- rray
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- Replies: 29
- Forum: Electrical
