TM 9-2350-247-20-1
TURN SIGNAL LAMP, STOPLIGHT OR CONTROL LIGHT DOES NOT LIGHT
OR FLASH WHEN CONTROL IS IN RIGHT OR LEFT TURN POSITION
0065 00
INITIAL SETUP:
Maintenance Level
Unit
Tools and Special Tools
General Mechanic’s Tool Kit (WP 0541 00, Item 57)
Multimeter (WP 0541 00, Item 29)
Personnel Required
Unit Mechanic
References
See your -10
Equipment Condition
Engine stopped (see your -10)
Carrier blocked (see your -10)
MASTER SWITCH OFF (see your -10)
NOTE
M548A1 and M548A3 troubleshooting procedures are the same. M548A1 procedure is shown.
T
1. Check for loose electrical connections.
2. Are all electrical connections clean and tight?
YES
NO
TN
1. Clean and tighten faulty electrical
connections.
2. Verify no faults found.
Y
1. Remove harness connector (1) from flasher unit (2).
2. Measure resistance between pins (3) (A, C), and (B, C) (4).
Multimeter reading should be 0 ohms.
3. Does multimeter read 0 ohms in both positions?
YES
NO
YN
1. Replace turn signal flasher unit
(WP 0509 00).
2. Verify no faults found.
0065 00-1
