Car is a 94 Accord EX. The ABS light comes on maybe every other time I start the car. Never first thing in the morning, but next time, probably. I can't find any leaks (had that once and fixed it). I would imagine the problem is electrical, but I don't know where to start looking.

 

Pull the codes. Even if its stored it should leave a code. Typical things that can cause the light to come are low fluid, extended run time, and poor battery voltage. I had an ABS light that wouldnt go away until I reset the module (It was one of those 5-x codes triggered by having crap voltage just once and usually means bad voltage or bad module)

 

*laughs in random ABS/charging issues*

Pull the codes.
Do you have an FSM?

 

The ABS code shown is 18. The manual says: "Accumulator gas leakage", or "Changed relief valve set pressure", or "Rear outlet solenoid valve late to close", or "Changed pressure switch set pressure".