Generator Inner Parts: Rotor

WARNING: This page is about a different car, the 2009 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 a tester.
- If not within the specification, replace the rotor.
Generator rotor resistance (between slip rings) [20°C {68°F}]

1.8-2.2 ohm

Fig 1: Measuring Resistance Between Slip Rings Using Tester
Courtesy of MAZDA MOTORS CORP.
Verify that there is no continuity between the slip ring and core using a tester.
- If there is continuity, replace the rotor.
Inspect the slip ring surface condition.
- If the slip ring surface is rough, use a lathe or fine sandpaper to smooth it.
Fig 2: Checking Continuity Between Slip Ring And Core Using Tester
Courtesy of MAZDA MOTORS CORP.