Highlander 2WD L4-2.4L (2AZ-FE) (2001)
a. Inspect rotor for open circuit.
1. Using an ohmmeter, check that there is continuity between the slip rings.
Standard resistance: 2.1 - 2.5 ohm at 20 °C (68 °F)
If there is no continuity, replace the rotor.
b. Inspect rotor for ground.
1. Using an ohmmeter, check that there is no continuity between the slip ring and rotor.
If there is continuity, replace the rotor.
c. Inspect slip rings.
1. Using vernier calipers, measure the slip ring diameter.
Standard diameter: 14.2 - 14.4 mm (0.559 - 0.567 in.)
Minimum diameter: 12.8 mm (0.504 in.)
If the diameter is less than minimum, replace the rotor.
8. INSPECT BRUSH
a. Using vernier calipers, measure the exposed brush length.