Check your alternator, this is a common early flag that it is on its way out. It should be pushing out around 13 to 14 volts.
I was getting my ABS light coming on when applying my brakes on my 2002 Chevy Malibu. I noticed it was repeatable and the same time I heard a distinct slower speed of fan motor for AC and lights dimmed.
Since the battery was installed in 2009, even though it started the car fine, I suspected that it was getting tired and was having an excessive voltage drop under a heavy load. The low voltage was triggering false indications from CM. I replaced the battery, event though tested "acceptable" on a load tester, and never had the problem again.
If your battery is old, replace it and then see if problem goes away, If four years or more, it owes you nothing anyway.
SOURCE: Codes P1433 and P1600 on Civic Hybrid
It turned out to be a failed IMA battery. Honda covered it under warranty, even though the car has a salvaged title, because it is part of the emissions system. A $3000 repair otherwise!
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.
SOURCE: Hi, I have a 2005
You might want to call your Honda dealer. Your car might be under a recall:
Product Update: IMA Battery Software Update
Service Bulletin 05-038
it should be free if it's under the recall. Just give the dealer your vin# over the phone and have them check it. good luck.
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