>>> "Ray O" <rokigawa@NOSPAMtristarassociates.com> wrote :
>>>
[quoted text clipped - 18 lines]
> Geo, that's what I used. I have no clue what to do with my new 99'
> Corolla. Thankfully I haven't had to figure it out yet.
It is possible, but I don't really remember. I generally tried not to let
customers see the really simple repairs, especially after a dealer made
repeated unsuccessful repair attempts.
Your '99 Corolla will require an OBD II code scanner to read and clear
trouble codes. You can buy them for as little as $100 but the cheap ones
only read SAE standard codes and clear check engine lights. I have a cheap
one and wish I bought one that is CAN compliant, reads manufacturer-specific
codes, displays actual sensor voltages, lists pending codes, and gives
readiness monitor status.
Or, you can take the car to someplace like Autozone that lends you a code
reader that you can use in their parking lot.

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Ray O
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Reasoned Insanity - 29 Dec 2008 07:39 GMT
>>>> "Ray O" <rokigawa@NOSPAMtristarassociates.com> wrote :
>>>>
[quoted text clipped - 32 lines]
> Or, you can take the car to someplace like Autozone that lends you a code
> reader that you can use in their parking lot.
Thanks, hopefully I don't have to get any codes read for quite some time
though. Does the computer store a history of past codes even after the
problem has been fixed? Is so, it might be nice to check my car for past
codes to try to establish a better history on it.
Hachiroku ハチロク - 29 Dec 2008 17:16 GMT
>>>>> "Ray O" <rokigawa@NOSPAMtristarassociates.com> wrote :
>>>>>
[quoted text clipped - 37 lines]
> problem has been fixed? Is so, it might be nice to check my car for past
> codes to try to establish a better history on it.
Hmmm...my '95 Tercel had OBD-II under the dash and a Diagnostics connector
under the hood. Even though Toyota went OBD-II early, it wasn't admissible
for inspection testing. But I could jumper the connector under the hood
and flash the MIL...
Ray O - 29 Dec 2008 19:57 GMT
>>>>> "Ray O" <rokigawa@NOSPAMtristarassociates.com> wrote :
>>>>>
[quoted text clipped - 37 lines]
> problem has been fixed? Is so, it might be nice to check my car for past
> codes to try to establish a better history on it.
The computer does store some codes if the check engine light comes on and
then goes off by itself, but the codes can be erased with and OBD II
scanner, and once erased there is no history.

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