Single Flash of ABS Dummy Light Followed by constant on?

[mankypro]

Checked all my fuses, all OK. Does the single flash tell me which sensor is bunk or what to repair? I'm not too keen on spending $85.00 for someone to pull my ABS codes. My code reader doesn't pull ABS codes...

2001 Ford Excursion 7.3l

 

[Mike]

Have you done a simple check of the VSS yet? Its a reach but it might be dirty.

 

[mankypro]

I'm sorry, VSS, vehicle speed sensor? wild guess there. what is it and where would I find it?

You're not talking about the speed sensor in the rear diff are you? If so it's been replaced.