TM 5-3805-298-23-1
0127
Table 1. Rear Left Turn Signal/Stoplight Does Not Operate - Continued.
0127
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 2. Test for Open at Rear
Rear Left Turn Signal/
Frame Wiring Harness.
Stoplight Does Not Operate -
1. Turn ignition switch and battery
Continued
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Remove right lower cab access
panels (WP 0347).
3. Disconnect connector M-C1
(WP 0012, Figure 57) from
connector C-C20 (WP 0012,
Figure 56).
4. Connect jumper wire between
M-C7 (WP 0012, Figure 157)
terminal 1 and M-C23 (WP 0012,
Figure 157) terminal 1.
5. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0174), measure resistance
Replace lower cab wiring harness
between connector M-C1
(WP 0291).
(WP 0012, Figure 57) terminal 16
Proceed to Test Step 3.
and ground.
Resistance Greater Than 5.0 Ohms
Replace rear frame wiring harness
(WP 0295).
Proceed to Test Step 3.
Test Step 3. Verify Malfunction Is
Resolved.
1. Ensure all harness connectors are
connected.
2. Install right lower cab access
panels (WP 0347).
3. Install rear tail and backup light
housing (WP 0272).
4. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).
5. Turn the military light switch to
Ser. Drive position and lower
switch to OFF (TM 5-3805-298-
10).
6. Turn the turn signal switch to left
turn signal position (TM 5-3805-
298-10).
0127-3
