TM 5-3805-290-23-1
TROUBLESHOOTING WITHOUT A DIAGNOSTIC CODE - CONTINUED
0008 00
Table 2. Electrical System Troubleshooting - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Determine condition.
1. If one worklight is inoperative, replace
6.
One or More Worklights
worklight bulb (WP 0060 00). If
Are Inoperative.
problem still exists, go to Test 2.
2. If both front and back rear worklights
are inoperative, go to Test 4.
3. If all worklights are inoperative, go to
Test 6.
2. Check for open power circuit.
1. If battery voltage is present, go to Test
(a) Disconnect wiring harness from
3.
worklight housing (WP 0060 00). 2. If battery voltage is not present, there
(b) Turn battery disconnect switch,
is an open circuit between worklight
engine start switch, and worklight
switch and worklight housing. Replace
switch to ON position (TM 5-
wiring harness in question (WP 0169
3805-290-10).
00 thru WP 0175 00).
(c) Select service drive mode on main
light switch (TM 5-3805-290-10).
(d) Measure voltage at worklight
between wiring harness pin 1,
circuit 615 (YL) or 608 (GN), and
ground.
3. Check for open ground circuit.
1. If continuity is present, replace
(a) Battery disconnect switch remains
worklight housing (WP 0060 00).
in ON position (TM 5-3805-290- 2. If continuity is not present, there is an
10).
open worklight ground circuit. Replace
(b) Wiring harness remains
wiring harness in question (WP 0169
disconnected from worklight
00 thru WP 0175 00).
housing.
(c) Turn worklight switch and engine
start switch to OFF position (TM
(d) Check continuity at worklight
housing between wiring harness
pin 2, circuit 200 (BK), and
ground.