TM 9--2350--292--20--1
0121 00--1
BLACKOUT DRIVE LIGHTS FAIL TO OPERATE.
0121 00
THIS WORK PACKAGE COVERS:
Blackout Drive Lights Fail To Operate
INITIAL SETUP:
Tools and Special Tools
General mechanic’s tool kit (item 1, WP 0717 00)
Multimeter (item 84, WP 0717 00)
Equipment Conditions
Vehicle MASTER switch OFF (TM 9--2350--292--10)
Switch panel removed from bracket (WP 0242 00) and
ground strap reconnected to switch panel
Personnel Required
Two
Is 24 V dc present?
1. Remove faulty blackout drive lamp from
headlight assembly (WP 0273 00).
2. Turn MASTER switch ON
(TM 9--2350--292--10).
3. Set main light switch to blackout drive
(TM 9--2350--292--10).
4. Place red multimeter lead on lamp holder
socket contact and black lead to ground.
Check for voltage.
5. Turn MASTER switch OFF
(TM 9--2350--292--10).
no
yes
Go to Step C.
no
yes
Replace blackout drive lamp
holder socket (WP 0273 00).
Verify fault is corrected.
A
B Place one multimeter lead on blackout drive lamp
socket holder and the other on blackout drive lamp
ground lead. Check for continuity.
Is continuity present?
WARNING
Remove rings, bracelets, wristwatches,
and neck chains before working on any
vehicle. Jewelry can catch on equip-
ment and cause injury, or may short
across an electrical circuit and cause
severe burns or electrical shock.
CONTINUED ON NEXT PAGE
Replace blackout drive
lamp (WP 0273 00).
Verify fault is corrected.
