TM 9--2350--292--20--1
0119 00--1
BLACKOUT STOPLIGHTS FAIL TO OPERATE.
0119 00
THIS WORK PACKAGE COVERS:
Blackout Stoplights Fail To Operate
INITIAL SETUP:
Tools and Special Tools
General mechanics tool kit (item 1, WP 0717 00)
Multimeter (item 84, WP 0717 00)
Equipment Conditions
Vehicle MASTER switch OFF (TM 9--2350--292--10)
Air intake grilles above battery compartment open
(TM 9--2350--292--10)
Personnel Required
Two
Is 24 V dc present?
1. Remove left and right stoplight door assemblies
and blackout stoplight lamp (WP 0276 00).
2. Turn MASTER switch ON and main light to BO
DRIVE or BO MARKER position
(TM 9--2350--292--10).
3. Place red multimeter lead on lamp holder contact
and black lead to ground. Check for voltage.
4. Turn MASTER switch and main light switch to
OFF (TM 9--2350--292--10).
no
yes
Replace blackout stoplight
lamp (WP 0276 00). Verify
fault is corrected.
A
CONTINUED ON NEXT PAGE
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.
Is continuity present when brake pedal is locked and not
present when brake pedal is released?
1. Remove subfloor plate #16 (WP 0454 00).
2. Disconnect two circuit 75 wires of harness
4W105 from stoplight switch (WP 0250 00).
3. Place one multimeter lead in one stoplight
switch connector and place the other lead in the
other stoplight switch connector.
4. Lock brake pedal (TM 9--2350--292--10). Check
for continuity.
5. Release brake pedal (TM 9--2350--292--10) and
check for continuity.
B
no
yes
Replace stoplight switch
(WP 0250 00). Verify fault
is corrected.