What type of motor is it? AC, DC brushless or DC brushed? The low res track could be commutation tracks if it is DC brushless, this takes the place of the older hall effect transistors. The connections are probabally correct for the +5 and common, and signal look ok,that would mean there is no marker pulse though. The resolution is often engraved on the glass disc near the boss.
Al
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.