TM 5-3805-254-20-1
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
41. ONE REAR EMERGENCY FLASHER DOES 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.
Step 1 is for left rear emergency flasher and step 2 is for right rear emergency flasher.
Step 1. 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) on wire connector (3).
Pull emergency flasher switch handle (6) out to on position. Check for 0 ohms on
multimeter. Push turn signal switch handle (7) towards left turn position to
release emergency flasher switch handle (6). Push turn signal switch handle (7)
to off position. Disconnect test leads.
If multimeter reads no continuity, replace turn signal switch (1)
(page 2-664).
Step 2. 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 (8) on wire connector
(3). Pull emergency flasher switch handle (6) out to on position.
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