# Replacing battery

**URL:** <https://community.cartalk.com/t/replacing-battery/30879>\
**Category:** Maintenance/Repairs\
**Created:** [May 23, 2009, 3:48pm UTC](https://community.cartalk.com/t/replacing-battery/30879 "2009-05-23T15:48:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![scj](https://avatars.discourse-cdn.com/v4/letter/s/bc79bd/32.png) [@scj](https://community.cartalk.com/u/scj)\
**Post date:** [May 23, 2009, 3:48pm UTC](https://community.cartalk.com/t/replacing-battery/30879/1 "2009-05-23T15:48:27Z")

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Putting a new battery in a 2000 Honda Accord. When I hook it up the horn starts blowing and I don’t know how to get it to stop.  
  
  
  
 I’ve tried hooking the battery up and with the horn blowing I turn the ignition on, turn on the radio and put in the five digit anti-theft reset code but that doesn’t work.  
  
  
  
 What do I do.  
  
  
  
 Thanks

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [May 23, 2009, 4:27pm UTC](https://community.cartalk.com/t/replacing-battery/30879/2 "2009-05-23T16:27:56Z")

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Read the beginning of this article [http://www.brakeandfrontend.com/Article/40466/tech\_feature\_has\_your\_battery\_life\_lost\_its\_charge\_tips\_to\_get\_back\_that\_spark.aspx](http://www.brakeandfrontend.com/Article/40466/tech_feature_has_your_battery_life_lost_its_charge_tips_to_get_back_that_spark.aspx) This is why a backup power source should always be connected on todays vehicles when disconnecting the battery cables. And here’s an example of one [http://www.tooltopia.com/index.asp?PageAction=VIEWPROD&ProdID=6431&utm\_source=nextag&utm\_medium=cse&utm\_term=KAS295A&utm\_campaign=nextag\_r1](http://www.tooltopia.com/index.asp?PageAction=VIEWPROD&ProdID=6431&utm_source=nextag&utm_medium=cse&utm_term=KAS295A&utm_campaign=nextag_r1).

So you may have to take it to the dealer so a scanner can be used to see if any modules are asleep that won’t wake up.

Tester

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**Author:** ![scj](https://avatars.discourse-cdn.com/v4/letter/s/bc79bd/32.png) [@scj](https://community.cartalk.com/u/scj)\
**Post date:** [May 23, 2009, 4:58pm UTC](https://community.cartalk.com/t/replacing-battery/30879/3 "2009-05-23T16:58:24Z")

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I got it. Thanks for the help though. What you do is hook up the battery. The horn will be honking. Then take a key and lock the driver side door. Then wait a second and then unlock. The alarm goes off. I called a dealer to get it because near as I can tell none of this is in the owners manual. Now the next question is why do they even make owners manuals to begin with? : \> )