Generator Inner Parts: Rotor

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Measure the resistance between the slip rings using an ohmmeter.
- If not within the specification, replace the rotor.
  Specification [20 °C {68 °F}]
  
  L3: 1.6-2.0 ohm
  
  AJ: 2.4-2.9 ohm
  
  Fig 1: Measuring Resistance Between Slip Rings Using Ohmmeter
  Courtesy of MAZDA MOTORS CORP.
Verify that there is no continuity between the slip ring and core using an ohmmeter.
- If there is continuity, replace the rotor.
Fig 2: Inspecting Slip Ring Surface Condition
Courtesy of MAZDA MOTORS CORP.
Inspect the slip ring surface condition.
- If the slip ring surface is rough, use a lathe or fine sandpaper to repair it.