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18
Test Procedures
TEST PROCEDURE 25 – Voltage Limiter
See General Warnings on page 1-1.
NOTE: This is a diode test.
The voltage limiter is a diode. Diodes are designed to conduct current in one direction only. See following NOTE.
NOTE: If the voltage limiter conducts current in both directions, the diode has failed closed. If the voltage limiter will
not conduct current in either direction, the diode has failed open.
1.
If necessary, see Testing Basics.
2.
Disable the vehicle.
3.
Remove the cowl.
4.
Disconnect the black wire from positive (+) terminal of voltage limiter.
5.
Disconnect the green wire from negative (-) terminal of the voltage limiter.
6.
Set the multimeter to the diode setting.
Figure 18-25 Voltage Limiter Test
7.
Put the red (+) probe on the negative (-) diode terminal.
8.
Put the black (-) probe on the positive (+) diode terminal.
8.1.
Check for continuity (1). Go to the next step.
9.
Put the red (+) probe on the positive (+) diode terminal.
10.
Put the black (-) probe on the negative (-) diode terminal.
10.1.
If there is no continuity (2), the diode is good.
10.2.
If there is continuity (3), replace the diode.
Page 18-40
2019 Carryall 550 Maintenance and Service Manual
GASOLINE VEHICLE - TROUBLESHOOTING
AND ELECTRICAL SYSTEM
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Table of Contents
Troubleshooting
