TM 5-2420-231-23-1
0044
Table 1. Front Blackout Light Does Not Function Correctly - Continued.
044
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. Using a digital multimeter, mea-
Front Blackout Light Does
Resistance 5.0 Ohms or Less -
sure resistance between front con-
Replace main chassis wiring harness
Not Function Correctly -
sole wiring harness connector (WP
(WP 0154).
Continued
0007, Figure 5) terminal 6J and
Install blackout light (WP 0194).
front console wiring harness con-
Proceed to Test Step 8.
nector (WP 0007, Figure 70) termi-
Resistance Greater Than 5.0 Ohms -
nal 3C. Resistance should be 5.0
Proceed to Test Step 7.
ohms or less.
Test Step 7. Check for Faulty Light
Control Switch.
NOTE
Ensure light control switch is in the B.O. DRIVE position (TM 5-2420-231-
10).
Using a digital multimeter, measure
Resistance 5.0 Ohms or Less -
resistance between light control switch
Replace front console wiring harness
(WP 0007, Figure 72) terminals D and
(WP 0162).
F. Resistance should be 5.0 ohms or
Proceed to Test Step 8.
less.
Resistance Greater Than 5.0 Ohms -
Replace light control switch (WP 0175).
Proceed to Test Step 8.
Test Step 8. Verify That Symptom Is
Resolved.
1. Ensure that all wiring harness con-
nectors are connected.
2. Connect batteries (WP 0157) and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
3. Ensure light control switch is in the
B.O. DRIVE position (TM 5-2420-
231-10).
4. Observe blackout light (TM 5-
Blackout Light On - Troubleshooting
2420-231-10).
complete.
Blackout Light Off - Repeat
troubleshooting from the beginning.
END OF WORK PACKAGE
0044-7/(8 blank)