Bench Testing: Rotor

Check continuity across rotor slip rings. See Fig 1 . Resistance should be 3-5 ohms (2-5 ohms on Eclipse, Galant, Lancer, Montero and Montero Sport). Replace rotor if continuity is not present or resistance is not within specification.

Fig 1: Checking Continuity Between Slip Rings Of Field Coil
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Check continuity between individual slip rings and rotor shaft. See Fig 2 . If continuity is present, rotor coil or slip ring is grounded. Replace rotor.

Fig 2: Checking Continuity Between Slip Ring & Core
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.