TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
55.
TRANSMISSION POSITION INDICATOR LAMP DOES 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.
Using number-one cross-tip screwdriver, unscrew and take out two screws (1). Take off position
strip lens (2). Push in lamp (3), turn counterclockwise and pull out. Using multimeter set to 20
vdc scale. Put LIGHTS switch (4) in up position. Connect red test lead to contact in light socket
(5) connect black test lead to ground. Check for 11 to 13 vdc on multimeter. Put LIGHTS switch
(4) in center position and disconnect test leads.
a. If multimeter reads 11 to 13 vdc, go to step 2.
b. If multimeter does not read 11 to 13 vdc, go to step 3.
Step 2.
Test lamp (3) as follows: Set multimeter, ohms scale and adjust to 0 ohms. Connect red test
lead to contact (6) on bottom of lamp (3) and black test lead to metal base (7) of lamp (3). Check
for 0 ohms on multimeter. Disconnect test leads.
a. If multimeter reads no continuity, replace lamp (3) (page 2-894).
b. If multimeter reads 0 ohms, go to step 3.
Step 3.
Pull apart wire connector (8). Set multimeter to 20 vdc scale. Connect red test lead to wire
terminal (9) and black test lead to ground. Put LIGHTS switch (4) in up position. Check for 11 to
13 vdc on multimeter. Put LIGHTS switch (4) in center position. Disconnect test leads.
a. If multimeter reads 11 to 13 vdc, 62J wire (10) from wire connector (8) to light socket
(5) must be replaced. Notify Direct Support Maintenance.
b. If multimeter does not read 11 to 13 vdc, go to step 4.
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