TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
31. ONE CAB MOUNTED MARKER LIGHT DOES NOT WORK.
NOTE
Steps given are typical for all cab mounted marker lights.
Cab mounted marker light wires are marked in following order from right to left side of cab, 58A, 58B, 58C,
58D, and 58E.
Step 1.Test marker light as follows: Using 1/4-inch flat-tip screwdriver, pry off lens
(1). Push marker lamp (2) in and turn counterclockwise, and take out. Set
multimeter to 20 vdc scale. Put LIGHTS switch (3) in down position. Connect red
test lead to contact in light socket (4) and black test lead to ground. Check for 11
to 13 vdc on multimeter. Put LIGHTS switch (3) in center position. Disconnect
test leads.
a.
If multimeter does not read 11 to 13 vdc, supply wire (5)
58B, 58C,
58D, or 58E must be replaced. Notify Direct Support
maintenance.
b.
If multimeter reads 11 to 13 vdc, go to step 2.
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