TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
25. ALL TURN SIGNALS 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). Set multimeter 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. Set multimeter 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. Set multimeter 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.
a.
If multimeter does not read 11 to 13 vdc to step 4.
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