TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
38. BOTH FRONT EMERGENCY FLASHERS DO NOT WORK.
WARNING
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
equipment.
NOTE
Scrape painted surfaces to bare metal before connecting test leads to ensure correct multimeter
readings.
Test turn signal switch (1) as follows: Pull apart wire connectors (2 and 3). Using
multimeter, set to ohms scale and adjust to 0 ohms. Connect red test lead to wire terminal
(4) and black test lead to wire terminal (5). Pull emergency flasher switch handle (6) out
to on position. Check for 0 ohms on multimeter. Move black test lead to wire terminal (7).
Check for 0 ohms on multimeter. Push turn signal switch handle (8) towards left turn
position to release emergency flasher switch handle (4). Push turn signal switch handle
(8) to off position. Disconnect test leads.
If multimeter reads no continuity on wire terminals (4) or (7), replace
turn signal switch (1) (page 2-664).
39. BOTH REAR EMERGENCY FLASHERS DO NOT WORK.
Test turn signal switch (1) as follows: Pull apart wire connectors (2 and 3). Using
multimeter, set to ohms scale and adjust to 0 ohms. Connect red test lead to wire terminal
(4) and black test lead to wire terminal (9). Pull emergency flasher switch handle (6) out
to on position. Check for 0 ohms on multimeter. Move black test lead to wire terminal (10).
Check for 0 ohms on multimeter.
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