Anti-Lock light on

My Anti-lock light is on most of the time. Sometimes when I first start up, it's off, then comes on while driving, whether or not I'm using the brakes. I read an earlier post that points to the alternator, but I'm not having any starting problems, and the battery voltage is around 13 with the engine off, 14.6 (seems a little high) with the engine running. The car is a 1998 GL with the 3.8 litre engine, 128kmiles.

Welcome to AF!

First of all the antilock light doesn't always indicate that there is a charging issue. The first thing I would suspect is that you have a bad wheel sensor. You will need to have the car scanned with an ABS capable scanner. This will tell you what needs to be done to repair the problem.

Welcome to AF!

First of all the antilock light doesn't always indicate that there is a charging issue. The first thing I would suspect is that you have a bad wheel sensor. You will need to have the car scanned with an ABS capable scanner. This will tell you what needs to be done to repair the problem.

Am I stuck taking it to a dealer to point to a particular hub? I couldn't find a scanner (to buy) that would read ABS codes, including the Auto Tap for Windows, and I truly loathe the local dealers service departments.
TIA