Honda Accord Transmission Control Module

Charles wrote:
> John Hirsch wrote:
>> Replacing the computer worked!
>
> If you're ambitious you can replace the half dozen or so electrolytic
> capacitors in the old computer. Then you'll have a working spare. Note
> that those capacitors are rated at 105C not 80C so they're a little more
> expensive. The parts will still be less than five dollars.
>

that would be a little lucky. the ones i've seen have a good deal more
fried than just a couple of caps.

jlelmjr.DeleteThis@gmail.com wrote:
> Where can you find a TCU error chart? Have a 90 accord ex with
> somewhat similar problems. Will drive fine when cold. When it gets
> warmed up it won't shift into gear. Had to park it and come back.
> LED is flashing 1,6,1,7,1,1,1,3.(I think)

Until you find a list online or somebody comes along with the Accord codes,
I'll tell you what they mean for my Prelude (found in the service manual)
which may be identical.

1 - lockup solenoid A fault
3 - throttle angle sensor fault
6 - shift position switch fault
7 - shift control solenoid A fault

It is unlikely that all of those individual components are failing. What is
in common among them? Power supply? Ground? Some internal circuitry in
the transmission control computer?

Why not clear the codes which may have accumulated over several
intermittancies? Pull the 10 ampere alternator sense fuse in the engine
compartment for 10 seconds. On my car it is labeled Clock. Reinsert the
fuse. The stored codes have been erased. You should then see no flashing
LED when you turn on the ignition switch. Make sure that you're looking at
the TCU LED and not the lamp on the engine control computer. Then start the
engine. Still no codes? Fine. Drive it until it fails and then note the
codes.

--
Chuck