TM 5-3805-293-23-2
0022
Table 1. Cab Heating, Air Conditioning, and 12 Volt Power Inverter Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. No Power From 12 Volt
5. Replace 12 Volt power inverter
Power Inverter Or +12
fuse F-37 (TM 5-3805-293-10)
Volt Auxiliary Port - Con-
6. Turn battery disconnect switch
tinued
and ignition switch to the ON posi-
tion (TM 5-3805-293-10).
7. Turn ignition switch and battery
disconnect switch to the OFF
position (TM 5-3805-293-10).
8. Remove 12 Volt power inverter
fuse F-37 (TM 5-3805-293-10)
from fuse panel.
9. Inspect for open fuse.
Fuse Open - Install new 12 Volt
power inverter fuse F-37 (TM 5-3805-
293-10) in fuse panel.
Proceed to step 10.
Fuse OK - Replace 12 volt power
inverter (WP 0265).
Install new 12 Volt power inverter fuse
F-37 (TM 5-3805-293-10) in fuse
panel.
Proceed to step 13.
10. Disconnect cab upper wiring har-
ness connector R-C1 (WP 0009,
Figure 33) from cab lower wiring
harness connector P-C3 (WP
0009, Figure 34) (WP 0265).
11. Remove 12 Volt power inverter
fuse F-37 (TM 5-3805-293-10)
from fuse panel.
12. Inspect for open fuse.
Fuse Open - Replace cab lower wir-
ing harness (WP 0266).
Install new 12 Volt power inverter fuse
F-37 (TM 5-3805-293-10) in fuse
panel.
Connect cab upper wiring harness
connector R-C23 (WP 0009, Figure
277) to 12 volt power inverter (WP
0009, Figure 278) (WP 0265).
Proceed to step 13.
Fuse OK - Replace cab upper wiring
harness (WP 0265).
Proceed to step 13.
0022-46
