A/T skipping 1st gear

Re: A/T skipping 1st gear

"Charles" <electrochuckREMOVE@XXXatt,net > wrote:
> On my car at least the transmission-side solenoid connectors are only
> available by opening the hood. You can't get to them from below.

You're right. I checked the location of the connector under the hood and
it was much higher than the solenoid itself and it is accessible
relatively easy.

> The best place to take the readings is at the transmission computer
> connector. In that way you'll check the wiring from the TCU to the
> transmission too. If you see a problem there, go for the connectors at
> the transmission. The troubleshooting charts also direct you to check
> for the presence of voltage on certain connectors. You can't check
> that in the engine compartment. Everything is available at the
> connectors which plug into the TCU.

Yes, but depending on the the code reading there are different
troubleshooting procedures and I can't read the code. I was also
wondering if I could possibly reset and damage the TCM by not having the
right service tools.

>> ...according to the troubleshooting charts...
>
> Speaking of that, you'd think that a professional technician would
> have access to a service manual. Through ignorance or greed he
> bypassed the testing procedure which would have told him that the
> solenoids he was about to replace were not defective. That shop owes
> you several hundred dollars.

I'm sure that I could have gotten a good technician to diagnose the
problem as it should have been because I'm sure they have those, too.
But then they also have marginal or lazy ones who make shortcuts when
they think they can get away with it. I probably got the latter. Each
job has some given labor hours allotted and if the mechanic is not good
he might not be able to finish it in that time. So they take the
shortcuts.

DB

Re: A/T skipping 1st gear

Dabbler wrote:
> Yes, but depending on the the code reading there are different
> troubleshooting procedures and I can't read the code.

Assume for the time being that it's an eight. As long as you're testing
things you can look at all solenoid resistances. Do you have a schematic of
the transmission control wiring? Do you have the authentic Honda manual?

Are you sure that the TCU itself does not have a lamp on it to show the
codes in addition to the service connector. You'll probably have to pull
back the carpet under the passenger's feet. If there is a little flap of
carpet there fastened with a Velcro strip that's probably for the engine
control computer. If the engine computer has a lamp, the TCU probably has
one too. If so, pull back the carpet. (You might have to remove a fastener
to release it.) If you see a plastic window on the side of the TCU, that's
the viewing port for the lamp. Turn the ignition on. It is not necessary to
start the engine. Any flashes of red light?

> I was also
> wondering if I could possibly reset and damage the TCM by not having
> the right service tools.

They're almost bullet-proof. To reset the computer after an error condition
has been corrected, you pull out a fuse for 10 seconds and replace it. It is
usually the 10 ampere alternator sense fuse in the engine compartment. On my
car it is marked "clock."

--
Chuck

Re: A/T skipping 1st gear

Dabbler wrote:
> My '94 Accord LX never had a transmission problem before but today,
> after a short stop, I had a hard time getting the car rolling. It was as
> if you tried to start a manual transmission car in the 3rd gear. So the
> 1st and possibly even the 2nd gear was skipped. Also, the A/T speed
> indicator in the instrument panel was flashing the #4 gear position.
> According to the official Honda Service Manual this blinking means that
> the TCM senses an abnormality in the input or output systems and the
> exact nature of the problem could be diagnosed only by reading a special
> code from the service check connector. Unfortunately I don't have that
> code reading tool, so it looks like Monday I'm going to have to take the
> car to a shop that hopefully won't tell me to have the whole A/T
> replaced for more than the car is worth. In the meantime I wonder if
> anybody experienced similar situation and could fill me in how it was
> resolved.
>
> DB
----------------

Poke through these:

http :// www .tegger,com /hondafaq/faq.html#engelectrical

'Curly'

Re: A/T skipping 1st gear


"motsco " <motsco @interbaun,com > wrote:
> Poke through these:
>
> http :// www .tegger,com /hondafaq/faq.html#engelectrical

Thanks, I did just that and found a lot of interesting stuff there but
nothing directly relating to my specific issue.

DB