ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
TEST OR INSPECTION
23. BOTH HEADLIGHTS DO NOT WORK - CONTINUED.
Although KEY SWITCH must be on and battery ground cable connected to test electrical circuit
voltage, turn off KEY SWITCH and disconnect battery ground cable before doing resistance tests
or replacing parts. This will keep you from getting shocked and prevent damage to parts and
Scrape painted surfaces to bare metal before connecting test leads to ensure correct multimeter
Test 14-6 wire (1) as follows: Using 1/2-inch open-end wrench, unscrew and take off nut (2),
lockwasher (3), and wire terminal (4) on magnetic switch (5). Set multimeter to ohms scale and
adjust to 0 ohms. Connect red test lead to wire terminal (4) on 14-6 wire (1) and black test lead to
terminal (6) on starter motor (7). Check for 0 ohms on multimeter. Disconnect test leads.
a. If multimeter reads no continuity, 14-6 wire (1) must be replaced. Notify Direct Support
b. If multimeter reads 0 ohms, place wire terminal (4) in position and screw nut (2) and
lockwasher (3) on to terminal (8) on primary magnetic switch (5) and tighten using 112-
inch open-end wrench. Connect batteries (page 2-424) and go to step 15.
Test headlight circuit breaker (9) as follows: Set multimeter to 20 vdc scale. Connect red test
lead to circuit breaker terminal (10) and black test lead to ground. Check for 11 to 13 vdc on
multimeter. Disconnect test leads.
a. If multimeter does not read 11 to 13 vdc, replace headlight circuit breaker (9) (page 2-