I have honda accord 2004 V6 and it wont start this morning. I was getting a green key sign on the dashboard. I tried changing the battery without any luck. Does any one know what is the cause of the problem along with a solution. If it is tied with any code key, how much would it cost me to get it fixed. Thanks...

With the key off, press the odometer reset button on the instrument panel. Hold the button down and turn the key to the "on" position without starting the car. The light should go out within 10-15 seconds.

I have a 04 Honda Accor v6 dual climate control when the ac is on the passenger side vents are cold but the driver side is just some what warm air when u put it on low temp

Timing belt ever been changed? Sure does sound like the problem. An old belt will snap on a cold start. Might want to look to see if the belt is tight and in place. These belts break regularly on Hondas with over 70,000 miles on them. Timing Belt change interval is 50,000.

Try 'jiggling' the key while you hold it in the start position' this could be a failed ignition switch.
It could also be that the + terminal on the starter or starter solenoid may be corroded. Since the battery was just replaced, those terminals are probably clean enough but check the negative cable where it attaches to the chassis or block. If the connection is flaky here, enough current can often pass to allow lower current devices to operate but drop too much voltage if the starter is trying to operate. Starters require 100-200 amperes, many times higher than anything else in our vehicles and show up cruddy connections pretty quick.

You could take the car to a dealer(Ali Bhai Motors in Karachi) who has the software disc to reinstall. I had a some what similar problem when I was changing the battery and the screen died

Change the lamp?

Whenever u have problem with Honda, there are 3 items u should look into first: Ignition Coil, ICM and main relay.
If your car cranks and will not start period, and u have checked sparks and compression...etc, the chances are its either your ICM or Ignition Coil. If your Honda starts sometimes and dies sometimes and 'experts' keep telling u its your transmission, fuel pump, fuel filter, starter, distributor...etc, before u spend any money, you should takeout your Main Relay and check(very carefully) for hairline(extremely fine) crack(s) on the soldering. If u see something looks like a crack, then u have found the problem. Get a new relay or resolder it yourself.

For your power steering issue, if you have replace the power steering kits already, may be u still have air in the system and u have to burp your system by removing the power steering reservoir cap, turn the steering left and right to pump air out from the system. Good luck.

the altornator might have got out

you need to get an automotive circit tester and measure the amp draw. once your are able to do that you need to start pulling fuses untill u see your amp draw drop then you have found your problem. make sure you dont have any light on durring this process. thats including the domb

check the ignition relay its under the drivers side dash common on hondas