My IMA light went off, and my friend scanned m)y Honda Civic Hybrid, and got a poa7f code (near kapoot hybrid battery). The thing is he cleared the code, and Honda won't replace the battery till it trips again. I have 4000 miles to trip the code before I miss out on the warranty. Any suggestions on abusing my hybrid battery to get it to trip sooner?
Error Code: P0A7F/78.
Description: Battery module deterioration.
Solution:
-Check for poor connections or loose terminals at the battery
module, the battery current sensor, and the BCM module.
SOURCE: Honda 2004 Civic Hybrid IMA light
Integrated Motor Assist (IMA) hybrid system uses high output electric motor-generator providing more efficient engine operation by capturing electrical energy during braking or deceleration and use of that energy to power the vehicle hence saving valuable fuel. The engine shut off during stops further increases efficiency of the vehicle. This can cause Damage to the Battery System if left UnRepaired for Too Long. Please Rate My Response! Thanks!
SOURCE: Honda code P0A7F
I have a 2006 Honda Civic Hybrid and have had hell with it. I have also learnt much about it too.
One thing bad about the HCH2, is that the 12V battery controls the electronics, and the Hybrid battery charges the 12V battery. However the 12V battery is not charged all the time, and cannot be charged when the IMA is usually being used, and in different scenarios. (Buy a Electronic volt meter which plugs into the 12V adapter $14 Walmart))
It is possible that the 12V battery is being drained while driving and caused a voltage drop which can cause your problem. In your case, I would change the 12V battery anyway as they do not last long on Hybrids. (You may have to get Honda to trip the IMA warning lights.) In my case, changing the 12v battery helped the hybrid battery as it was the electronics reporting the charge level wrong.
Depending where you live, you will have a minimum 80,000 mile warranty on the hybrid battery.
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