TM 5-3805-254-20-1
ORGANIZATIONAL TRUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
37. ALL 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.
Step 1. Remove instrument panel pad (page 2-424). Using multimeter, set to 20 vdc
scale. Connect red test lead to fuse terminal (1) on fuse panel (2) 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, go to step 2.
b. If multimeter reads 11 to 13 vdc, go to step 3.
Step 2. Using multimeter, set to 20 vdc scale. Connect red test lead to circuit breaker
strip feed stud (3) and black test lead to ground. Check for 11 to 13 vdc on
multimeter. Disconnect test leads.
If multimeter reads 11 to 13 vdc, 55 wire (4) must be replaced. Notify
Direct Support Maintenance.
Step 3. Using multimeter, set to 20 vdc scale. Connect red test lead to fuse terminal (5)
on fuse panel (2) and black test lead to ground. Check for 11 to 13 vdc on multimeter.
Disconnect test leads.
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