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Hybrid Vehicles Honda Civic Hybrid Honda Civic Hybrid IMA Problems
187 messages, Last post on Dec 06, 2009 at 11:23 AM
You are in the Honda Civic Hybrid Forum. Your Host is pf_flyer
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Replying to: grandtotal (Sep 29, 2009 3:33 pm) No it doesn't. A false P0A7F might be thrown because of that, but not in this case. No IMA light was lit. Contact me privately if you want more information on this or any other OBD code. |
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Replying to: rx2man (Oct 01, 2009 7:24 am) Sorry, no they can't. If the programs "degrade", then the computer module will fail. The computer patches are fixes. If problems ("bugs") are found in the software, they release a "patch" (new version of the program) to fix it. As mechanical/electrical problems are discovered in the cars, the engineers find ways of adapting the computers to solve the problems or alleviate the symptoms. >At 80k the dealer said I needed a new trans, but erasing and reprogramming the computer fixed most of the issues. In other words, they had found work-arounds for the problems and updating the software made most of them go away. |
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Yes, with the update the car's MPG has really dropped. I see it in the real-time MPG meter as well as with each fillup, and the TRIP indicators. At least a 20% drop and that's with having to coax it like crazy way more than I had to before... and even still, a large MPG drop. So now I have a nice, "normal" Civic that's a shadow of its former self as far as the hybrid and MPG is concerned. And all the stuff I used to do for 3 years (like easily be able to get into all-electric "coast" mode on certain flat stretches of highway, or regularly get 5 bars of assist on the hybrid while driving) are no more. Now it's pretty much 100% gas except when accelerating from zero, or really pressing down on the pedal while driving. On a side note, I rode in a Tesla today. Amazing car (though only seats two). Immediate acceleration like you wouldn't believe, like a rocket. Extremely quiet, 100% electric. No problem with its batteries (of course it costs around $120,000...) |
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Have a 2009 HCH with 15K miles. Last week IMA light came on. Took to Honda dealer we purchased from. Got our service invoice. They updated battery ECU & ECM/PCM... whatever they are. Also has DC=5HW00 / SC=R1100 Again whatever those are. It also lists - Defectcode 5HW00. Anyone know if our battery is screwed and Honda is shafting us?
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Replying to: dowjd (Nov 04, 2009 9:10 pm)  car.
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Replying to: shonda3 (Nov 05, 2009 4:48 am) My wife drives the car the most. Sometimes battery level would drop to 1-2 bars with AC on during summer (live in Central Valley California). Before IMA issue, on average we got 37 MPG local city/highway (with AC). We got better mileage on highway trips.. average 43 MPG at 70mph and could get 52 MPG at 55mph. We took car to Honda 10/28/09 and they did their thing. Will know more about MPG this next fill up and battery performance. |
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| I took my 2006 Honda Civic Hybrid into a Honda dealership this morning (11-9-2009) to get the transmission fixed, as it was leaking fluid. It is under warranty. While they had the car, I had them look into why the IMA (?) battery drains sometimes. On the average, once a week, when I'm at a stop light, and with nothing running, (e.g. no A/C, heater, radio, etc...), and when the battery bar level is at 75% full. When the signal light turns green, I take my foot off the brake pedal, and press onto the gas, and BOOM, {instantly}, the bar level drops from 75% to 0% within a half second, and while pressing onto the gas, there is NO power for me to go forward. I start to coast, and people behind me are honking for me to go, but I can't. Then after 30 seconds, I start moving again, when the battery starts to charge back up Blocking traffic for 30 seconds is bad. Anyways, Honda called me to tell me there is a software updade to FIX this. Actually, there are 3 upgrades. And, they perfomed the upgrades before getting me a quote. They CHARGED me $175 for these 3 upgrades, something that should be FREE, as it's a definate PROBLEM and bad design onto the car manufacturer's part. How much does Honda charge others for the {not-so-free} computer upgrades, that fixes something that should've been fixed already, and/or should be covered under warranty? | |
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I created this tread to help diagnose give suggestions on how to eliminate this problem. Car: 2006 Honda Civic Hybrid Problem: During periods where outside temp is 95F+ the IMA battery looses a full charge in about 10 seconds, after about 5 minutes of use. During which time the charge light goes up to 4 bars and holds steady. Coasting does not charge battery and neither does braking. After about 1 hour of run time the IMA starts working again. Result: I went from getting 41MPG on average to around 28MPG because the IMA never functions correctly in the afternoon on the way home from work. Possible Repairs: Took the car to Howdy Honda (Austin,TX) and they did 4 computer software updates. They also were able to replicate the problem (after the updates) and sent a snapshot of the computer diagnostic to Honda regional offices. Outcome: Honda basically said, "This known issue and we are unable to fix it at this time. We will contact you when a fix is found." Honda documented official diagnosis as "heat issue, not repairable at this time".
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Replying to: joek11 (Jul 07, 2009 10:02 am) So Hondas solution... software upgrades. What? Hiding a piece of garbage using smoke and mirrors isn't going to change the fact that its still garbage. They know there is an issue with the IMA and batteries that "cannot be repaired at this time." So why continue to manufacture and sale them? |
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