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
Test Step 6. Check for Open Cab
Tail Lights Do Not Oper-
Lower Wiring Harness.
ate - Continued
1. Turn ignition switch and battery
disconnect switch to the OFF
position (TM 5-3805-293-10).
2. Using digital multimeter, measure
Resistance Less Than 5.0 Ohms -
resistance between control indica-
Replace cab lower wiring harness
tor harness connector PE-C11
(WP 0266).
(WP 0009, Figure 287) terminal 1
Connect the rear lamps harness con-
and 3. Resistance should be less
nector AG-C20 (WP 0009, Figure 311)
than 5.0 ohms.
to rear chassis wiring harness con-
nector FA-C29 (WP 0009, Figure 310)
(WP 0178).
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).
Resistance 5.0 Ohms or Greater -
Proceed to Test Step 7.
3. Turn battery disconnect switch to
One or Both Blackout Tail Lights
the ON position and control indi-
Do Not Operate - Repeat trouble-
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 7. Check for Open Con-
trol Indicator Switch.
1. Disconnect the control indicator
harness connector PE-C10 (WP
0009, Figure 288) from control
indicator switch (WP 0009, Figure
289).
0023-114