TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
35. ONE FRONT TURN SIGNAL LIGHT 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 4.Using multimeter, set to 20 vdc scale. Connect red test lead to wire terminal (1)
on wire connector (2) and black test lead to ground. Put turn signal switch
handle (3) in left turn position. Check for 11 to 13 vdc on multimeter. Put turn
signal switch handle (3) in off position. Disconnect test leads.
a.
If multimeter does not read 11 to 13 vdc, go to step 5.
b.
If multimeter reads 11 to 13 vdc, 56 wire (4) must be
replaced. Notify
Direct Support Maintenance.
Step 5.Test turn signal switch (5) as follows: Pull apart wire connectors (2 and 6).
Using multimeter, set to ohms scale and adjust to 0 ohms. Connect red test lead
to wire terminal (7) and black test lead to wire terminal (8). Put turn signal
switch handle (3) in left turn position. Check for 0 ohms on multimeter. Put turn
signal switch handle (3) in off position. Disconnect test leads.
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