TM 9--2350--292--20--1
0117 00--1
STOPLIGHTS FAIL TO OPERATE.
0117 00
THIS WORK PACKAGE COVERS:
Stoplights 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)
APU cover removed (WP 0413 00)
Personnel Required
Two
1. Remove left and right stoplight door assemblies
and stoplight lamps (WP 0276 00).
2. Turn MASTER switch ON and main light switch
to STOPLIGHT position (TM 9--2350--292--10).
3. Place red multimeter lead on stoplight 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 stoplight lamp (WP 0276 00).
Verify fault is corrected.
no
yes
Replace stoplight switch
(WP 0250 00). Verify fault
is corrected.
A
B
CONTINUED ON NEXT PAGE
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.
Is continuity present when brake pedal is locked and not
present when brake pedal is released?
Is 24 V dc 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.
