# 2003 Civic Hybrid Check Engine IMA Lights

**URL:** <https://community.cartalk.com/t/2003-civic-hybrid-check-engine-ima-lights/28323>\
**Category:** Maintenance/Repairs\
**Created:** [March 26, 2009, 3:28am UTC](https://community.cartalk.com/t/2003-civic-hybrid-check-engine-ima-lights/28323 "2009-03-26T03:28:00Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![dgholmes](https://avatars.discourse-cdn.com/v4/letter/d/ea5d25/32.png) [@dgholmes](https://community.cartalk.com/u/dgholmes)\
**Post date:** [March 26, 2009, 3:28am UTC](https://community.cartalk.com/t/2003-civic-hybrid-check-engine-ima-lights/28323/1 "2009-03-26T03:28:00Z")

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Here’s what happened. About mid-Feb, my IMA light came on. About a week later my Check Engine light came on. It was a couple of weeks before I could get into the dealer. The dealer told me that I needed to replace my catalytic converters and my IMA batteries.  
  
  
  
 I was dubious. About 18 months ago, my Check Engine light came on and stayed, and they told me to replace a catalytic converter. I did. A few months later I was notified of a class action suit settlement, about software causing problems and erroneous replacement of catalytic converters. I got reimbursed by Honda for the cost.  
  
  
  
 The dealer insisted that there were no software causes this time, that it wasn’t relays for the IMA causing the problem, etc.  
  
  
  
 I took their solution “under advisement” after being assured I’d cause no harm to the car by continuing to drive it. By Mid-March, both lights went out, and have been behaving normally for about 2 weeks now.  
  
  
  
 My mileage has been about what it’s always been…44 mpg in mixed city/highway driving.  
  
  
  
 Any ideas?

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**Author:** ![oldschool](https://avatars.discourse-cdn.com/v4/letter/o/e19adc/32.png) [@oldschool](https://community.cartalk.com/u/oldschool)\
**Post date:** [March 26, 2009, 4:14am UTC](https://community.cartalk.com/t/2003-civic-hybrid-check-engine-ima-lights/28323/2 "2009-03-26T04:14:53Z")

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Life is good for you? You need to ask a more direct question.

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**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\
**Post date:** [March 26, 2009, 9:05am UTC](https://community.cartalk.com/t/2003-civic-hybrid-check-engine-ima-lights/28323/3 "2009-03-26T09:05:41Z")

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Lights out. Problem solved. Happy, Happy, Joy, Joy!!!

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**Author:** ![mcparadise](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mcparadise/32/32_2.png) [@mcparadise](https://community.cartalk.com/u/mcparadise)\
**Post date:** [March 26, 2009, 10:28am UTC](https://community.cartalk.com/t/2003-civic-hybrid-check-engine-ima-lights/28323/4 "2009-03-26T10:28:57Z")

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If it ain’t broke, don’t fix it. Lights off means everything is OK.

Until they come back on.

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**Author:** ![dgholmes](https://avatars.discourse-cdn.com/v4/letter/d/ea5d25/32.png) [@dgholmes](https://community.cartalk.com/u/dgholmes)\
**Post date:** [March 26, 2009, 5:13pm UTC](https://community.cartalk.com/t/2003-civic-hybrid-check-engine-ima-lights/28323/5 "2009-03-26T17:13:39Z")

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Ah…there’s you’ve hit the gasket with the hammer. Until they come back on. And, you know, they will come back on.

If the problem isn’t a catalytic converter and the IMA batteries, that would be nice to know so that the dealer doesn’t insist again that it’s not something else.

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**Author:** ![hellokit](https://avatars.discourse-cdn.com/v4/letter/h/6a8cbe/32.png) [@hellokit](https://community.cartalk.com/u/hellokit)\
**Post date:** [March 26, 2009, 7:22pm UTC](https://community.cartalk.com/t/2003-civic-hybrid-check-engine-ima-lights/28323/6 "2009-03-26T19:22:43Z")

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I’m dubious about your dealer’s guesses. Read the post on “Catalytic Converter Failure”.
