S2000 L4-2.2L (2004)
19. Measure the length of both brushes (A) with a vernier caliper(B).
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If either brush is shorter than the service limit, replace the brush assembly.
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If brush length is OK, go to step 20.
Rotor Slip Ring Test
20. Check that there is continuity between the slip rings (A).
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If there is continuity, go to step 21.
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If there is no continuity, replace the alternator.
21. Then check that there is no continuity between each slip ring and the rotor (B) and the rotor shaft (C).
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If there is no continuity, go to step 22.
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If there is continuity, replace the alternator.
Stator Test
22. Check that there is continuity between each pair of leads (A).
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If there is continuity, go to step 23.
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If there is no continuity, replace the alternator.
23. Check for no continuity between each lead and the coil core (B).
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If there is no continuity, go to step 24.
