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
10. Using digital multimeter, test for
Resistance 5.0 Ohms Or Less - Pro-
Flood Lamps Do Not
continuity between flood lamp
ceed to step 18.
Operate, Front and Rear
housing (WP 0009, Figure 406)
Resistance More Than 5.0 Ohms -
Flood Lamps Operate
terminal 1 and lens harness con-
Replace right middle flood lamp
Normally - Continued
nector (WP 0009, Figure 405).
assembly (WP 0206).
Resistance should be less than
Proceed to step 22.
5.0 ohms.
11. Using digital multimeter, test for
Resistance 5.0 Ohms Or Less -
continuity between flood lamp
Replace right middle flood lamp bulb
housing (WP 0009, Figure 406)
(WP 0206).
terminal 2 and lamp assembly
Proceed to step 22.
connector (WP 0009, Figure 405).
Resistance More Than 5.0 Ohms -
Resistance should be less than
Replace right middle flood lamp
5.0 ohms.
assembly (WP 0206).
Proceed to step 22.
12. Disconnect the lighting wiring har-
ness connector CF-C4 (WP 0009,
Figure 316) from left middle flood
lamp (WP 0184).
13. Using digital multimeter, test for
Voltage Between 18 and 26 Volts -
voltage between connector CF-
Proceed to step 14.
C4 (WP 0009, Figure 317) termi-
Voltage Less Than 18 Volts -
nal 1 and 2. Voltage should be 18
Replace lighting wiring harness (WP
to 26 volts.
0184).
Proceed to step 22.
14. Remove left middle flood lamp
lens from flood lamp assembly
(WP 0206).
15. Disconnect lens connector (WP
0009, Figure 405) from lens.
16. Disconnect bulb connector (WP
0009, Figure 405) from lamp
assembly connector (WP 0009,
Figure 405).
17. Using digital multimeter, test for
Resistance 5.0 Ohms Or Less - Pro-
continuity between harness con-
ceed to step 18.
nector CF-C4 (WP 0009, Figure
Resistance More Than 5.0 Ohms -
316) terminal 1 and lens harness
Replace left middle flood lamp assem-
connector (WP 0009, Figure 405).
bly (WP 0206).
Resistance should be less than
Proceed to step 22.
5.0 ohms.
0023-133