Stator Open Test
- Connect a 110-volt test lamp or an ohmmeter (x1 scale) with leads touching any 2 stator leads. Make checks between 2 different sets of stator leads.
- Readings should be equal. If test lamp does not light or if resistance is high, windings are open. See Figure.
NOTE:
Delta windings on 15SI and 27SI alternators cannot be checked for open with an ohmmeter.