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
2. Check for open power circuit.
1. If continuity is present, replace main
12. One or Both Blackout
(a) Disconnect wiring harness from
light switch (WP 0055 00).
Stoplamps Are Inoperative
rear light housing (WP 0070 00). 2. If continuity is not present, there is an
- Continued.
(b) Disconnect wiring harness from
open circuit between rear light housing
main light switch (WP 0061 00).
and main light switch. Replace wiring
(c) Check for continuity between rear
harness in question (WP 0195 00 thru
lamp wiring harness wire A653
WP 0201 00).
(PK), and main light switch wiring
harness pin N, wire A653 (PK).
There is an open rear light ground circuit. Replace wiring harness in question (WP
13. All Rear Lights Are
0195 00 thru WP 0201 00).
Inoperative.
1. Check voltage to lamp.
1. If battery voltage is present, replace
14. Blackout Drivelight is
(a) Disconnect wiring harness from
blackout drivelight or repair ground at
Inoperative.
blackout drivelight (WP 0068 00).
light (WP 0068 00).
(b) Turn battery disconnect and
2. If battery voltage is not present, go to
engine start switches to ON
Test 2.
position (TM 5-3805-291-10).
(c) Select blackout drive on main light
switch (TM 5-3805-291-10).
(d) Measure voltage at blackout
drivelight between wiring harness,
wire A651 (BR), and ground.
2. Check continuity between main light 1. If continuity is present, replace main
switch and blackout drivelight.
light switch (WP 0061 00).
(a) Disconnect wiring harness from
2. If continuity is not present, there is an
main light switch (WP 0061 00).
open circuit between blackout
(b) Turn battery disconnect and
drivelight housing and main light
engine start switches to OFF
switch. Replace wiring harness in
position (TM 5-3805-291-10).
question (WP 0195 00 thru WP 0201
(c) Check continuity at blackout
00).
drivelight between wiring harness,
and main light switch wiring
harness pin D, wire A651 (BR).
1. Check coupler fuse (TM 5-3805-291-
1. If fuse is open, replace it.
15. Quick Coupler Switch/
2. If fuse is OK, go to Test 2.
10).
Alarm is Inoperative.
