TM 5-3805-293-23-2
0023
Table 1. Cab Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
21. One or Both Middle
18. Using digital multimeter, test for
Resistance 5.0 Ohms Or Less -
Flood Lamps Do Not
continuity between harness con-
Replace left middle flood lamp bulb
Operate, Front and Rear
nector CF-C4 (WP 0009, Figure
(WP 0206).
Flood Lamps Operate
316) terminal 2 and lamp assem-
Proceed to step 22.
Normally - Continued
bly connector (WP 0009, Figure
Resistance More Than 5.0 Ohms -
405).
Replace left middle flood lamp assem-
Resistance should be less than
bly (WP 0206).
5.0 ohms.
Proceed to step 22.
19. Disconnect the lighting wiring har-
ness connector CF-C6 (WP 0009,
Figure 317) from right middle
flood lamp (WP 0184).
20. Disconnect the lighting wiring har-
ness connector CF-C4 (WP 0009,
Figure 316) from left middle flood
lamp (WP 0184).
21. Using digital multimeter, test for
Voltage Between 18 and 26 Volts -
voltage between connector CF-
Replace right and left middle flood
C6 (WP 0009, Figure 317) termi-
lamps (WP 0206).
nal 1 and 2. Voltage should be 18
Proceed to step 22.
to 26 volts.
Voltage Less Than 18 Volts - Pro-
ceed to Test Step 3.
22. Turn battery disconnect switch
One or Both Middle Flood Lamps
and ignition switch to the ON posi-
Do Not Operate - Repeat trouble-
tion, turn control indicator switch
shooting from the beginning.
to SER. DRIVE position, and turn
Both Front Middle Lamps Operate -
work light switch to front work
Troubleshooting complete.
lights position (TM 5-3805-293-
10).
Test Step 3. Check for Faulty Light-
ing Wiring Harness.
1. Disconnect the lighting wiring har-
ness connector CF-C1 (WP 0009,
Figure 315) from front attachment
wiring harness connector U-C6
(WP 0009, Figure 314) (WP
0184).
2. Using digital multimeter, test for
Voltage Between 18 and 26 Volts -
voltage between front attachment
Replace lighting wiring harness (WP
wiring harness connector U-C6
0184).
(WP 0009, Figure 314) terminal 3
Proceed to step 3.
and 4. Voltage should be 18 to 26
Voltage Less Than 18 Volts - Pro-
volts.
ceed to Test Step 4.
0023-134
