TM 5-3805-298-23-1
0127
Table 1. Rear Left Turn Signal/Stoplight Does Not Operate.
0127
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
Rear Left Turn Signal/
Stoplight Does Not Operate
Always inspect wiring harness connectors that are involved in the circuit.
Poor connections can often be the cause of a problem in an electrical
circuit. Verify that all connections in the circuit are clean and secure and
that all connections are in good condition. If a problem with the
connection is found, correct the problem and verify that this malfunction
or diagnostic code is active before performing this procedure.
Perform open or short-circuit test at each wiring harness connection to
identify the correct wiring harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active.
Test Step 1. Test for Voltage at Rear
Left Turn/Stoplight.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Remove rear tail and backup light
housing and position aside
(WP 0272).
3. Disconnect connector M-C7 and
M-C23 (WP 0012, Figure 157)
from rear left turn/stoplight.
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).
7. Using digital multimeter
Voltage Pulses Between 0 and 28
(WP 0174), test for voltage
Volts Replace left rear tail light
between connector M-C7
(WP 0272).
(WP 0012, Figure 157) terminal 1
Proceed to Test Step 3.
and connector M-C23 (WP 0012,
No Voltage Proceed to Test Step 2.
Figure 157) terminal 1 (ground).
