Check charging system - Acura TSX Forum
 
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post #1 of 7 (permalink) Old 05-08-2018, 08:30 PM Thread Starter
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Check charging system

So i need help. I replaced my battery about 4-5 months ago because it died on me after i replaced the battery i started receiveing the check charging system periodically. Then after awhile the check charging system was on all the time so a few weeks pass by and then my car dies so I replaced the alternator. Now the check charging system light comes on as I slow down. I just want to reach out to the tsx community and see if there is anyone who has had this issue themselves. Thank you
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post #2 of 7 (permalink) Old 09-25-2018, 09:58 PM
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Have the same exact problems. I would highly appreciate some expertise on this from Acura experts.

The Check Charging System often comes on when I brake at 15-40 mph then pings off almost immediately. My battery usually drains after 4-6 months. I changed the alternator because of this but it has continued to happen.

Many thanks for future replies!
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post #3 of 7 (permalink) Old 09-25-2018, 10:04 PM
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I'm new to the TSX, but not new to the platform.

If battery and alternator are good, check your grounding points and connections. I know that is a painfully obvious response, but it catches all of us off guard at some point.
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post #4 of 7 (permalink) Old 01-08-2019, 11:35 PM
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Any luck guys on fixing the problem???
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post #5 of 7 (permalink) Old 04-13-2019, 11:22 PM
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So....still struggling.
1. Taken out bluetooth thing
2. Changed alternator
3. Changed battery
4. Changed the whole positive to alternator to starter wire
5. All fuses fine

And still having issues. I'll check the grounds as I've missed your reply somehow. I now have a bonus message of 'Check EMISSIONS SYSTEM' which is new but could be linked to changing alternator.

I am begging somebody to help. Pleaaaaaase haha.
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post #6 of 7 (permalink) Old 04-15-2019, 10:20 AM
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Update:
Loose connection on new starter sub wire harness (gray six pin connector). My own fault. Car now putting out 13.7-14.2 V when running, yay!

However, alternator whining! Unsure why.
Secondly, when engine is running and car is stopped (in neutral)...the battery voltage drops to 4,5 or 6 V when the cooling fan comes on!!
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post #7 of 7 (permalink) Old 04-16-2019, 12:00 AM
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You may have exhausted the battery due to the poor connections. Standard car batteries aren’t really meant to cycle in charge.

First step would be to have a load test done to check the health of the battery. But thats only a fair test if it sat on a charger to tender it to a full charge
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