TM 5-3805-291-23-1
TROUBLESHOOTING WITHOUT A DIAGNOSTIC CODE - CONTINUED
0008 00
Table 2. Electrical System Troubleshooting - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Backup Alarm Always On - 2. Check if problem is still active.
1. If problem still exists, replace backup
5.
(a) Inspect and clean harness
alarm relay (WP 0053 00).
Continued.
connector contacts.
2. If problem still exists, replace
(b) Reconnect all harness connectors.
powertrain ECM (WP 0063 00).
(c) Start engine (TM 5-3805-291-10). 3. If problem is no longer active, initial
problem was probably caused by a poor
electrical connection and/or a short in
a harness connector that was
disconnected and reconnected.
Resume normal machine operation.
1. Determine condition.
1. If one worklight is inoperative, replace
6.
One or More Worklights
worklight bulb (WP 0072 00). If
Are Inoperative.
problem still exists, go to Test 2.
2. If both front or both rear worklights are
inoperative, check and replace
worklight fuse(s) as necessary (TM 5-
3805-291-10). If problem still exists,
go to Test 4.
3. If all worklights are inoperative, go to
Test 10.
2. Check for open power circuit.
1. If battery voltage is present, go to Test
(a) Disconnect wiring harness from
3.
worklight housing (WP 0072 00). 2. If battery voltage is not present, there
(b) Turn battery disconnect, engine
is an open circuit between worklight
start, and worklight switches to
switch and worklight housing. Replace
ON position (TM 5-3805-291-10).
wiring harness in question (WP 0195
(c) Select service drive mode on main
00 thru WP 0201 00).
light switch (TM 5-3805-291-10).
(d) If rear worklight is inoperative,
measure voltage at worklight
between wiring harness pin 1, wire
619 (GN), and ground.
(e) If front worklight is inoperative,
measure voltage at worklight
between wiring harness pin 1, wire
607 (PK), and ground.
