Toyota Repair: 1994 Corolla ABS light

Question
The ABS light on my 1994 Corolla is on steadily.  The car is a 1.8 liter 5 speed with 337,000 miles that I have owned since new.

Yesterday, the "ABS" light, "ABS Active" light, and "Brake" light were all flashing on and off briefly whenever I would accelerate moderately hard.  Today the ABS light comes on at start-up and stays on.  The other 2 lights do not flash anymore.

Looking for most likely causes.  No recent brake work.  Brake fluid level is fine.

Are there error codes set in the ABS computer?  If so, how do I read them.  Is this most likley a wheel sensor or something else?

Answer
Hello, you may be able to check for codes using the diagnostic connector under the hood, use terminals Tc and E1 with a jumper and the key on, the abs light along with a couple of others will start to flash, read the abs codes, a two digit code, three blinks followed by two would be a code 32 and so on, abs codes always start with the number 3.