TM 5-2410-240-23-1
0021
Table 1. Cab Troubleshooting Without Codes. - Continued.
0021
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. Rear Flood Lamp(s) Will Not
4. Turn battery disconnect switch
Work - Continued
to ON position (TM 5-2410-
240-10).
5. Turn flood lamp switch to ON
position (TM 5-2410-240-10).
Voltage Within 18 to 26 Volts -
6. Using a digital multimeter,
measure for voltage (WP 0283)
Proceed to step 7.
between C-C31 terminal 2 and
Voltage Not Within 18 to 26
terminal 5 (WP 0018, Figure
Volts - Replace lower cab wiring
28).
harness (WP 0228).
Install fuse panel front cover on
machine (TM 5-2410-240-10).
Verify proper operation of flood
lamps (TM 5-2410-240-10).
7. Using a digital multimeter,
Voltage Within 18 to 26 Volts -
measure for voltage (WP
Proceed to Test Step 8.
0283) between C-C31 termi-
Voltage Not Within 18 to 26
nal 1 and terminal 5 (WP
Volts - Proceed to Test Step 21.
0018, Figure 28).
Test Step 8. Test for Open Flood
Lamp Relay.
1. Turn flood lamp switch to OFF
position (TM 5-2410-240-10).
2. Turn battery disconnect switch
to OFF position (TM 5-2410-
240-10).
3. Open left rear compartment
access door (TM 5-2410-240-
10).
4. Disconnect harness C-C72
(WP 0018, Figure 43) from
blower medium high relay (WP
0018, Figure 50). Remove
blower medium high relay
from A/C heater assembly.
5. Connect blower medium high
relay (WP 0018, Figure 50) on
harness connector C-C31 (WP
0018, Figure 28).
6. Turn battery disconnect switch
to ON position (TM 5-2410-
240-10).
0021-139
