Battery, Brake, Doors Open, Lights all ON
 

2001 Honda Accord EX 6cyl.
The Maint. Req'd light blinks on start up then goes off.

The brake light, battery light, and all the door open lights stay on.

I have bled the brakes and checked the pads and the fluid resivoir. all OK. The pedal seems like it goes too far down when braking. I think it should be a little firmer.

Checked the Battery voltage 12.46v. Rechecked the voltage with the engine running and it was 12.13. with the AC on it was 11.95.
All brake and turn signal lights are working. Everything happened all at once.
Thanks
Howard

RE: Battery, Brake, Doors Open, Lights all ON
 

The maint required light may not be related. It doesn't mean anything is wrong - it is set to turn on after a certain number of miles since it has been reset.
I hate to tell you this, but it sounds like your alternator is going out. Based on similar posts from people whose alternators failed. Do you have a Haynes manual? It should tell you the specifications on the battery voltage. Hopefully one of our trusty Honda professionals will get on here and tell you how to diagnose whether or not the alternator is bad. You could drive your car down to AutoZone or Advance and ask them to test the battery and alternator for you as well, but it looks like you know how to do that yourself;).
Good luck.

RE: Battery, Brake, Doors Open, Lights all ON
 

Recheck your voltage with the engine running. Try turning on headlights, ventilation blower, & rear window defogger. What happens then? Also maybe hold the engine rpm up to 2500 or 3000 & measuring again.

Reason...
Honda has a system where the ECU can tell the alternator to shut down if it's idling, and there's no big load measured by the ELD, and the voltage is good. By turning on these electrical loads you're forcing the alternator to become active.

If it doesn't help, then you have to figure out whether it's a bad alternator or that shutoff system is farbed up.

RE: Battery, Brake, Doors Open, Lights all ON
 

OK... I've done a re-check
OFF = 12.37v ( lower than original check by .09v)
IDLE = 12.17v( higher than original check by .04v)
At IDLE with LOAD 11.77v ( lower, but I turned on more stuff )
Racing the engine up 2000-2500rpm there was no change. Hmmmmm ? Alternator ? or that shut off System?
Howard
2001 Accord EX V6

RE: Battery, Brake, Doors Open, Lights all ON
 

Put an alternator on it.

RE: Battery, Brake, Doors Open, Lights all ON
 

Yeah. Sounds like alternator.

RE: Battery, Brake, Doors Open, Lights all ON
 

Changed the Alternator ... ALL lights back to normal including Brake light.
Thought I was going to have to pull the engine to get the alternator out. Either that or remove the radiator and fan assy.
After un bolting the Power Steering resivior and pushing out of the way, and taking the bolts off of the timing belt cover to where it could be moved to give me a little more room,I was able to wiggle the POS out and get the new one back in.
Thanks to everyone for your responses.
Howard
2001 Accord EX V6

Hi i'm having exactly the same problem with all the lights coming on but there is also a weird electrical whirrling noice coming from the engine. Strangly after driving the car 30 mins to have someone look at it the lights went off, came back on within a min then went off and have stayed off, however the strange whirrling noice is still there. Followin instructions here we checked the battery at two diff shops, its fine so move on to the alternator but its charging the battery just fine as the battery volts go up. Now heres the really strange part we put in a new battery ( brand new never used) and the sound goes
Away at idle, put the other battery tested at two shops and told was fine and the noise comes back....

So at current state "shop tested batttery" in car, still making whirrling noise , no check batterry, break , doorlights anymore but all the sudden the SRS is coming on and off?!?!

Any suggestions before i go to honda and waste my money( ps i bought a new alternator and its sitting in my trunk and the car was at honda 2 weeks ago and got that seatbelt sensory replace)

What year, model, cylinders, is your car? Sounds like the alternator though.

Same as the other one but a 2000

So its a 2000 accord v6 2 door 128000 kms on it ( which seems low to have this kund of a prob)

Honda used a lot of Delphi alternators on the 6th gen Accord V6, unlike Denso alternators which were better quality. The problems were bad bearings which would make a whining noise when your car was running or the alternators would not charge.

I had a whinning noise come from engine,there is a bearing in the alternator that causes this.You think it coming from your engine.touch your alternator you should feel a weared vibration and grinding.If you feel and hear this,you should replace it.Make sure your new alternator is tested and passed.The shop i went to tested the new ones and they failed.Make sure they pass before instaling.

I just started having this same issue on my 99 accord lx. I have 225,000 miles on it. Took it to AutoZone to see if it was the alternator but they said it was running fine. I have no idea what else to check then. I bought a new battery for it and made sure connections were clean. What else could it be? Possible the AutoZone guy didn't know what be was doing I don't know.

I have the same issue on my 2000 Honda odyssey except I just replaced my alternator with a factory remanufactured one they even sent a copy of their diagnostics that said the alternator is running fine... The bad alternator didn't cause these and it was fine until my husband took the battery out and put a different one in now it's throwing the lights and my tranny is jerking when going into drive or reverse which it wasn't doing before either any help would be appreciated...

Please start a new thread and describe what you have tested and what has been done on your vehicle.

Having multiple people post of the same thread makes it very confusing.

Could it be bad cables?