TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
21. ONE FRONT EMERGENCY FLASHER DOES NOT WORK - CONTINUED.
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 3. Unscrew and take off two wing screws (1) and junction box cover (2). Using
multimeter, set to 20 vdc scale. Connect red test lead to terminal (3) on junction
box (4) and black test lead to ground. Have assistant pull emergency flasher
switch handle (5) out to on position. Check for 11 to 13 vdc on multimeter. Have
assistant push turn signal switch handle (6) towards left turn position to release
emergency flasher switch handle (5). Have assistant push turn signal switch
handle (6) to off position. Disconnect test leads.
a. If multimeter does not read 11 to 13 vdc, place junction box cover (2)
in position and screw on two wing screws (1) onto junction box (4)
and tighten. Place junction box cover (7) in position and screw two
wing screws (8) onto junction box (9) and tighten. Go to step 4.
b. If multimeter reads 11 to 13 vdc, 56 wire (10) must be replaced.
Notify Direct Support Maintenance.
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