My auto transmission was randomly stuck on third, a classic TCU failure
symptom! I decided to open up the TCU and play with it before
purchasing a replacement unit. I as inspect the board, I found two
adjacent transistor (220uF) and resitor (10K Ohm) burned. Went to Radio
Shack, purchased the two items for a grand total of $2.29, replaced,
and the problem is fixed! Hope this post helps someone with the same
TCU problem.

 

Tixin wrote:
> My auto transmission was randomly stuck on third, a classic TCU failure
> symptom! I decided to open up the TCU and play with it before
> purchasing a replacement unit. I as inspect the board, I found two
> adjacent transistor (220uF) and resitor (10K Ohm) burned. Went to Radio
> Shack, purchased the two items for a grand total of $2.29, replaced,
> and the problem is fixed! Hope this post helps someone with the same
> TCU problem.


----------------------------

I have a PDF and a link where a guy explains how to do that fix . .
apparently it's very common for the caps to eventually fail, which takes
out the other components. google.com is a great tool for such stuff.

'Curly'

 

On Tue, 26 Apr 2005 10:09:18 -0600, "motsco_ _" <"motsco_
_"@interbaun.com> wrote:

>Tixin wrote:
>> My auto transmission was randomly stuck on third, a classic TCU failure
>> symptom! I decided to open up the TCU and play with it before
>> purchasing a replacement unit. I as inspect the board, I found two
>> adjacent transistor (220uF)
don't confuse people, the value you give for a transistor is in
micro-farads, which is a capacitace measurement. some people only
read and have no understanding of what they are doing.
I've re-built several of these for people. it is cheap and easy

and resitor (10K Ohm) burned. Went to Radio
>> Shack, purchased the two items for a grand total of $2.29, replaced,
>> and the problem is fixed! Hope this post helps someone with the same
>> TCU problem.
>
>
>----------------------------
>
>I have a PDF and a link where a guy explains how to do that fix . .
>apparently it's very common for the caps to eventually fail, which takes
>out the other components. google.com is a great tool for such stuff.
>
>'Curly'

 

> don't confuse people, the value you give for a transistor is in
> micro-farads, which is a capacitace measurement.

Yes, you are correct. It was a capacitor, not transistor. Thank you for
catching the mistake.