WARNING
CAUTION
NOTE
Inspect connector pins/sockets for damage,
corrosion, and serviceability. Check that
connector pins are not pushed back and
are capable of making good contact.
Use care when testing electrical connectors.
Do not damage connector pins or sockets
with multimeter probes. Failure to comply
may result in damage to equipment.
Remove rings, bracelets, watches, necklaces,
and any other jewelry before working around
vehicle. Jewelry can catch on equipment and
cause injury or short across electrical circuits
and cause severe burns or electrical shock.
Change 1 2-565
TM 9-2320-365-20-1
VOLTAGE TEST
Do not let wires slip through
hole into cab structure. If wires
slip into cab structure, vehicle
will need further disassembly
to retrieve wires.
(1) Remove four screws from marker light base.
Marker/ID Light
Connector
Wire Segment
RH Cab Top Marker
Light
P55
P55 to splice E23
RH Cab Top ID Light
Middle Cab Top ID
Light
LH Cab Top ID Light
LH Cab Top Marker
Light
P50
P57
P60
P59
P59 to splice E23
P60 to splice E23
P57 to splice E23
P50 to splice E23
Table 2-11.1. Cab Clearance and Marker Light Connectors
NOTE
(9) If 12 VDC is not present, repair wire 1951b
from connector (refer to Table 2-11.1. Cab
Clearance and Marker Light Connectors) d
(para 2-40) or replace cab clearance and or
marker lights cable assembly (para 7-59) or
M1081 cab clearance and marker lights upper
cable assembly (para 7-56).
(10) Position main light switch to OFF
(2) Remove nut, lockwasher, terminal lug
(refer to Table 2-11.1. Cab Clearance and
Marker Light Terminal Lugs), and
lockwasher from marker light base. Discard
lockwashers.
(3) Extend base and disconnect connector
(refer to Table 2-11.1. Cab Clearance and
Marker Light Connectors) from marker light
connector.
(4) Remove gasket from marker light base.
Discard gasket.
(5) Set multimeter to volts DC.
(6) Connect positive (+) probe of multimeter to
connector (refer to Table 2-11.1. Cab
Clearance and Marker Light Connectors).
(7) Connect negative (-) probe of multimeter to
ground.
(8) Position main light switch to SER DRIVE
(TM 9-2320-365-10) and note reading on
multimeter.
(TM 9-2320-365-10).
