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Stator Test

Using an ohmmeter, check stator leads for continuity. See Fig 1 (STEP 1). If continuity does not exist between stator leads, replace stator.
Check for continuity between stator leads and stator core. See Fig 1 (STEP 2). If continuity exists, replace stator.

Fig 1: Testing Alternator Stator (Nippondenso)

Courtesy of GENERAL MOTORS CORP.