TM 5-3805-293-23-2
0023
Table 1. Cab Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6. Front Left Turn Signal
Test Step 2. Check for Faulty Front
Does Not Operate - Con- Left Turn Signal Wiring.
tinued
1. Turn ignition switch and battery
disconnect switch to the OFF
position (TM 5-3805-293-10).
2. Disconnect the connector AA-C1
(WP 0009, Figure 290) from left
head lamp assembly.
3. Turn battery disconnect switch
and ignition switch to the ON posi-
tion (TM 5-3805-293-10).
4. Using digital multimeter, test for
Voltage Pulsing and Peaks
voltage between connector AA-
Between 18 and 26 Volts - Replace
C1 (WP 0009, Figure 290) termi-
front left head and signal lamp assem-
nal 1 and terminal 2. Voltage
bly (WP 0197).
should be pulsing 18 to 26 volts.
Proceed to step 5.
Voltage Less Than 18 Volts - Pro-
ceed to Test Step 3.
5. Turn control indicator switch to
Front 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
Front Left Turn Signal Operates -
front left turn signal operates.
Troubleshooting complete.
Test Step 3. Check for Faulty Front
Lighting Harness.
1. Turn ignition switch and battery
disconnect switch to the OFF
position (TM 5-3805-293-10).
2. Disconnect front lighting harness
connector A-C3 (WP 0009, Figure
292) from front work light wiring
harness connector CL-C26 (WP
0009, Figure 293) (WP 0196).
3. Disconnect front lighting harness
connector A-C4 (WP 0009, Figure
394) from front work light wiring
harness connector CL-C24 (WP
0009, Figure 393) (WP 0196).
4. Turn battery disconnect switch
and ignition switch to the ON posi-
tion (TM 5-3805-293-10).
0023-49
