TM 5-3805-293-23-2
0023
Table 1. Cab Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
8. Rear Left Turn/Stop
8. Turn control indicator switch to
Rear Left Turn Signal Does Not
Lamp Does Not Operate
position SER. DRIVE, turn signal
Operate - Repeat troubleshooting
in Both Turn and Stop -
switch (TM 5-3805-293-10) to the
from the beginning.
Continued
left turn signal position and verify
Rear Left Turn Signal Operates -
rear left turn signal operates.
Troubleshooting complete.
Test Step 2. Check for Faulty Rear
Lamps Harness.
1. Disconnect the rear lamps
harness connector AG-C20 (WP
0009, Figure 311) from rear
chassis wiring harness connector
FA-C29 (WP 0009, Figure 310)
(WP 0178).
2. Turn battery disconnect switch to
the ON position (TM 5-3805-293-
10).
3. Using digital multimeter, test for
Voltage Pulsing and Peaks
voltage between rear chassis wir-
Between 18 and 26 Volts - Replace
ing harness connector FA-C29
rear lamps harness (WP 0178).
(WP 0009, Figure 310) terminal 6
Proceed to step 3.
and terminal 1 (Gnd). Voltage
Voltage Less Than 18 Volts - Pro-
should be pulsing 18 to 26 volts.
ceed to Test Step 3.
4. Turn control indicator switch to
Rear Left Turn Signal Does Not
position SER. DRIVE, turn signal
Operate - Repeat troubleshooting
switch (TM 5-3805-293-10) to the
from the beginning.
left turn signal position and verify
Rear Left Turn Signal Operates -
rear left turn signal operates.
Troubleshooting complete.
Test Step 3. Check for Faulty Rear
Chassis Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to the OFF
position (TM 5-3805-293-10).
2. Disconnect the rear chassis wir-
ing harness connector FA-C22
(WP 0009, Figure 47) from cab
lower wiring harness connector P-
C69 (WP 0009, Figure 46) (WP
0266).
3. Turn battery disconnect switch to
the ON position (TM 5-3805-293-
10).
0023-56
