MX-5 Miata LS L4-1.8L DOHC (2001)
5. Measure the segment groove depth of commutator.
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If not within the minimum specification, undercut the grooves to the standard depth.
Standard depth: 0.5 mm (0.02 in)
Minimum depth: 0.2 mm (0.008 in)
Magnetic switch
1. inspect for continuity between terminals S and M using an ohmmeter.
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if there is no continuity, replace the magnetic switch.
2. inspect for continuity between terminal S and the body using an ohmmeter.
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if there is no continuity, replace the magnetic switch.
3. Verify that there is no continuity between terminals M and B using an ohmmeter.
