Bench Testing: Rotor
WARNING: This page is about a different car, the 2004 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
- Check rotor for open field windings by using an ohmmeter across slip rings. Rotor resistance should be within specification. See GENERATOR SPECIFICATIONS .
- Check rotor for shorts to ground by connecting ohmmeter between slip ring and rotor shaft. Ohmmeter should indicate no continuity. Check slip rings for wear or pitting. See GENERATOR SPECIFICATIONS . If slip rings are rough or scored, replace rotor.