TM 9-2320-272-24-1
Table 2-3. Electrical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test 8. Test continuity of protective control box harness.
NOTE
Sealant must be removed before removing leads.
Step 1. Disconnect lead 566 at alternator.
a. Remove two screws (2), lockwashers (3), and terminal cover (1) from alternator (4).
b. Remove nut (7), washer (6), lockwasher (5), and lead 566 from alternator (4).
Step 2. Connect multimeter positive lead to pin F at harness connector and negative lead to
contact end of lead 566 at alternator.
a. Multimeter should indicate continuity. If continuity is not indicated, repair broken
lead 566 (para. 3-131).
b. If continuity is indicated, connect harness connector to protective control box. DO
NOT connect lead 566 to alternator. Go to test 9.
Test 9. Test starter lockout signal.
Attempt to start engine with lead 566 disconnected from alternator.
a. If engine fails to start, replace protective control box (para. 3-115).
b. If engine starts, replace alternator (para. 3-79 or 3-80).
END OF TESTING!
2-117
