Whoa a second guys.. Start out here first.
Mopar1973Man's Dodge Cummins Articles - Antilock Braking System (ABS)
Power steering pump or fluid will not trip the ABS / Brake light combo.
Brake fluid might but it would have to be seriously black.
As for me I'm also fighting the ABS / BRAKE light. What happen to me is the driver side cable broke in half. So I bought the new driver side sensor and installed. But now the passenger side on the driver side are mismatched and no longer so the ABS computer keeps setting the code because of mismatch between left to right. So now I got to replace right side too. I always suggest replacing both sensors as a pair and I didn't heed my own warning and got hung on it too. (D'Oh!)