Last post on Dec 09, 2013 at 4:52 PM
You are in the Honda Civic Hybrid
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Honda Civic, Hybrid Cars, Coupe, Sedan
#1357 of 1535 Bad IMA battery or controller?
Feb 13, 2012 (8:45 am)
2003 Honda Civic hybrid, 49K miles
Abnormal battery behavior for last 3 weeks
IMA light came on on two very cold (~0 degrees F) mornings. Light went out next time I started the car, after driving about 20 minutes. Battery charge about 2/3 while IMA not functioning. IMA functioned normally (as far as I recall) after light went out.
Second change noticed (might have started before first)
Abnormal charging - charging while going up slight to moderate inclines, with battery charge at 2/3 or more. IMA starts assisting with battery a bit less than fully charged. Don't recall seeing battery charge dropping below 50%.
After a 0 degree F night, engine started roughly. IMA battery at 3 bars. After driving 14 minutes, battery charge at about 90%. IMA started assisting on demand before battery had reached 50% charge.
Wondering whether I have a failing battery or a bad IMA controller that isn't charging at the appropriate times?
#1358 of 1535 Re: Bad IMA battery or controller? [tinkerick]
Feb 15, 2012 (7:45 am)
Hi, I'm in Calgary and the same started happening to me. It seems to be stemming from the Warranty recall computer update in the summer of 2011. Did your dealer update the computer? My car has now been with the dealer for 4 weeks, the battery and everything checks out. They are waiting for a response from the engineers in Japan.
#1359 of 1535 Re: Bad IMA battery or controller? [calgary5]
Feb 15, 2012 (6:15 pm)
Yes, the update was performed.
More strange behavior
When I started the car this afternoon, the battery meter showed 2 bars. Again, after about 10 minutes, it showed the battery fully charged. Some of the bars even appeared without the Charging indicator lighting up, and the rest without much charging. I wish I could fill the fuel tank without pumping any gas.
So, it sounds like your dealer was able to check the battery somehow. What can you tell me about how they did that? Can you give me any information about the engineers working on it in Japan? I'd like to pass the info on to my dealer.
Meanwhile, my onboard computer gave P0A80 as an trouble code. It was explained as an "IMA code." Do you know if your car produced any trouble codes? If so, what were they?
#1360 of 1535 Re: Bad IMA battery or controller? [tinkerick]
Feb 15, 2012 (8:18 pm)
I didn't notice any wierd battery charge/discharge when the car was running. The first time it got cold in Nov the dealer got an intermittent flashing code 56(not stored - not retrived with HDS). During their testing they also got code P1600. The dealer connected their diag to "techline" they advised to repace the IMA battery. All was good untill Jan got cold same problem. Haven't seen the car since, I don't have a current report. They say the issue has been elevated to the engineers in Japan.
#1361 of 1535 Re: Bad IMA battery or controller? [calgary5]
Feb 16, 2012 (7:52 am)
So, they replaced the battery and the problem reappeared when the weather turned cold (suggesting the battery wasn't the problem). Is that what happened?
#1362 of 1535 "Secret" software update?
Feb 16, 2012 (8:36 am)
I brought my 2009 HCH in to have a door seal replaced a few weeks ago, and ever since then the behavior of the battery meter has changed. I no longer see those recalibration swings, and it seems that I get more IMA than I used to.
I don't know if the dealer quietly updated the software without telling me, or if it's just that the weather lately has been ideal.
#1363 of 1535 Re: Bad IMA battery or controller? [tinkerick]
Feb 16, 2012 (8:58 am)
Yes, it essentially ruled out a bad battery. It probably would have been just fine this winter without the computer update in the summer. Apparently they can't put an older update back in. this is odd because I work in an industry that we can backdate code if something goes wrong. Apparently the auto industry (Honda) can't. So now I wait.
#1364 of 1535 Re: small claims hearing [viaw]
Feb 16, 2012 (2:53 pm)
Folks, it is not only the HCH owners who have been defrauded. My 2006 purchase qualified me for a US Federal Income Tax credit of approximately $2200.00. The United States Government has been ripped off also!
#1365 of 1535 Re: Bad IMA battery or controller? [calgary5]
Feb 26, 2012 (2:39 pm)
Bummer! Good luck.