TM 5-3805-293-23-2
0023
Table 1. Cab Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
18. One or Both Blackout
3. Turn battery disconnect switch to
One or Both Blackout Tail Lights
Tail Lights Do Not Oper-
the ON position and control indi-
Do Not Operate - Repeat trouble-
ate - Continued
cator switch to position B.O.
shooting from the beginning.
DRIVE (TM 5-3805-293-10), and
Both Blackout Tail Lights Operate -
verify both blackout tail lights
Troubleshooting complete.
operate.
Test Step 4. Check for Faulty Cab
Lower Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to the OFF
position (TM 5-3805-293-10).
2. Disconnect the control indicator
harness connector PE-C11 (WP
0009, Figure 287) from cab lower
wiring harness connector P-C11
(WP 0009, Figure 286) (WP
0283).
3. Turn battery disconnect switch
and ignition switch to the ON posi-
tion (TM 5-3805-293-10).
4. Use a digital multimeter, test for
Voltage Between 18 and 26 Volts -
voltage between connector P-C11
Proceed to Test Step 6.
(WP 0009, Figure 286) terminals
Voltage Less Than 18 Volts - Pro-
1 and machine ground. Voltage
ceed to Test Step 5
should be 18 to 26 volts.
Test Step 5. Check for Bad Fuse.
1. Remove fuse F38 from cab fuse
panel (TM 5-3805-293-10).
2. Visually inspect fuse F38 for open
Resistance Less Than 5.0 Ohms -
or use a digital multimeter to mea-
Replace cab lower wiring harness
sure resistance between the ter-
(WP 0266).
minals of fuse F38. Resistance
Connect the rear lamps harness con-
should be less than 5.0 ohms.
nector AG-C20 (WP 0009, Figure 311)
to rear chassis wiring harness con-
nector FA-C29 (WP 0009, Figure 310)
(WP 0188).
Connect the connector AG-C15 (WP
0009, Figure 341) to right tail light
(WP 0177).
Connect the connector AG-C16 (WP
0009, Figure 400) to left tail light (WP
0177).
Install fuse F38 to cab fuse panel (TM
5-3805-293-10).
Proceed to step 3.
0023-112