Rotor Slip Ring Test
1. Check the resistance between the slip rings.
There should be 1.8 - 3.0 ohms.
If resistance meets the specification, go to step 2.
If resistance does not meet the specification,
replace the alternator.
ROTOR SHAFT
SLIP RINGS
ROTOR
2. Check that there is no continuity between the slip
rings and the rotor or rotor shaft.
3. If the rotor fails either continuity check, replace the
alternator.
Stator Test
1. Check that there is continuity between each pair of
leads.
LEADS
COIL CORE
2. Check that there is no continuity between each lead
and the coil core.
3. If the coil fails either continuity check, replace the
alternator.ProCarManuals.com
