TM 5-3805-298-23-1
0128
Table 1. Rear Right Turn Signal/Stoplight Does Not Operate.
0128
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
Rear Right 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
Right 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-C18 and
M-C13 (WP 0012, Figure 158)
from rear right 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 in
OFF (TM 5-3805-298-10).
6. Turn the turn signal switch to right
turn signal position (TM 5-3805-
298-10).
7. Using digital multimeter
Voltage Pulses Between 0 and 26
(WP 0174), test for voltage
Volts Replace right rear taillight
between connector M-C18
(WP 0272).
(WP 0012, Figure 158) terminal 1
Proceed to Test Step 3.
and connector M-C13 (WP 0012,
No Voltage Proceed to Test Step 2.
Figure 158) terminal 1 (ground).
Test Step 2. Test for Open at Rear
Frame Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Remove right lower cab access
panels (WP 0347).
