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1997 Honda Prelude TCM

 
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Old 03-21-2012, 03:35 PM
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1997 Honda Prelude TCM

Hello, Im new here to this forum, but I own a 1997 Honda Prelude (automatic). Anyway,

about 3 weeks ago I was driving down the interstate, and I went to pass,

but when I put my foot on the gas - the engine rev'd but no power. So I

pull over, and try to restart, but the car wont start. The starter just spins.

Come to find out, I had a broken flex plate. So I ha it replaced. However,

when I got it back more problems: When shifting into reverse , it would bang

and the car would shake a little. Then if you go from park/reverse directly to

drive it would take a few seconds to get the power needed to move forward.

However, if you used the shifter to go directly to first, it was fine. Then, on

highways, it would no longer shift into overdrive at all.

So I take it to a shop, and they tell me the computer is bad (TCM). However

they say they dont do those because new computers need to be

reprogrammed. Anyway, after some googling it seems replacing the TCM is a

simpler self repair then I had though, however, I dont know where the TCM in

a 1997 Honda Prelude is, and I cant seem to find any online manuals

referecing replacing it. Anyone here have experience with that? Do

I need a device to program one? Where in the car is it and how do I get to it

Thank you in advance.
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Old 03-21-2012, 10:34 PM
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Re: 1997 Honda Prelude TCM

This is definitely a job for the dealer they are indeed easy to replace but the biggest cost is for programming but if you wish to buy and install one yourself it is located by the passengers feet under the carpet area good luck with your lude
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Old 03-22-2012, 04:19 AM
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Re: 1997 Honda Prelude TCM

What is the best way to get under the carpet?
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Old 03-22-2012, 09:28 AM
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Re: 1997 Honda Prelude TCM

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Originally Posted by NavalFC View Post
What is the best way to get under the carpet?
Just pull the carpet back and unscrew the metal plate underneath it.
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Old 03-22-2012, 03:08 PM
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Re: 1997 Honda Prelude TCM

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Originally Posted by HondaFellA View Post
This is definitely a job for the dealer they are indeed easy to replace but the biggest cost is for programming but if you wish to buy and install one yourself it is located by the passengers feet under the carpet area good luck with your lude
Would a used TCM alleviate the need for programming? A used TCM from another 5th gen prelude?

Also I noticed when I put the car in sport shift mode, the LED gear display no longer comes on, and according to the manual that also comes from the TCM..hmm.. so yeah I think mine is definitely shot
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Old 03-22-2012, 07:57 PM
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Re: 1997 Honda Prelude TCM

yes you dont need to reprogram the auto tcm i have a couple sitting around from when i thought it was bad on my car and it was a bad trans. better chance the trans is bad then the computer is bad.
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Old 03-22-2012, 09:34 PM
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Re: 1997 Honda Prelude TCM

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Originally Posted by Decipher View Post
yes you dont need to reprogram the auto tcm i have a couple sitting around from when i thought it was bad on my car and it was a bad trans. better chance the trans is bad then the computer is bad.
Well I had the trans checked at a trans shop and what they told me was the computer so hopefully that's the case
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Old 03-23-2012, 11:48 PM
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Re: 1997 Honda Prelude TCM

If the light on the dash doesn't lite up you many need a gear selector on the transmission.
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Old 03-25-2012, 03:09 AM
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Re: 1997 Honda Prelude TCM

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Originally Posted by Decipher View Post
If the light on the dash doesn't lite up you many need a gear selector on the transmission.
The light lights up, I was referring to the 7 segment display right next to the light, that comes on when ever you put the car in sport shift mode. Displays the gear as a number like an LCD clock sort of format
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