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
24. Check rear washer motor power circuit 1. If continuity is present, replace rear
19. Wipers/Washers Do Not
for continuity.
wiper switch (WP 0067 00). If problem
Operate or Do Not Operate
(a) Disconnect wiring harness from
still exists, replace rear wiper motor
Correctly - Continued.
rear wiper switch (WP 0067 00).
(WP 0146 00).
(b) Wiring harness remains
2. If continuity is not present, there is an
disconnected from rear washer
open circuit between wiper motor and
motor.
wiper switch. Replace wiring harness
(c) Turn engine start switch to OFF
in question (WP 0195 00 thru WP 0201
position (TM 5-3805-291-10).
00).
(d) Check continuity at rear washer
motor between wiring harness pin
1, wire 507 (WH), and rear wiper
switch wiring harness pin 7, circuit
507 (WH).
1. Check dome light operation (TM 5-
1. If dome light operates correctly, go to
20. Horn/Dome Light(s) is
3805-291-10).
Test 7.
Inoperative.
2. If both dome lights and horn are
inoperable, temporarily replace horn
relay (WP 0053 00). If problem still
exists, reinstall original relay and go to
Test 2.
3. If dome light(s) only are inoperable,
temporarily replace bulbs. If problem
still exists, replace original bulbs and
go to Test 10.
2. Check horn fuse (TM 5-3805-291-10). 1. If fuse is OK, temporarily replace horn
relay (WP 0053 00). If problem still
exists, reinstall original relay and go to
Test 3.
2. If fuse is open, replace it.
3. Check power to relay.
1. If battery voltage is present, go to Test
(a) Remove horn relay (WP 0053 00).
4.
(b) Turn battery disconnect and
2. If battery voltage is not present, there
engine start switches to ON
is an open circuit between horn fuse
position (TM 5-3805-291-10).
and horn relay. Replace wiring harness
(c) Measure voltage at horn relay
in question (WP 0195 00 thru WP 0201
between wiring harness pin 30,
00).
wire 114 (RD), and ground.
