Remove the two screws (Item 1), nut/washer (Item 2) and the plastic cover (Item 3) [Figure 60-31-11] from the alternator.
NOTE: In the diode tests there should be continuity in one direction only. Meter readings should be different when probes are reversed. If the diode being tested shows no continuity or continuity in both directions, replace the rectifier assembly.
NOTE: Use the diode function (Item 1) [Figure 60-31-12] on the multimeter.
Touch the probes to the terminals (Item 1) [Figure 60-31-13] of each diode and read the meter.
Reverse the probes to check the diode in the other direction.
Meter readings should be different when probes are reversed.
Touch one probe to the diode (Item 1) [Figure 60-31-14] and the other probe to each heat sink and read the
meter.
Reverse the probes to check the diode in the other direction.
Meter readings should be different when probes are reversed.
