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
5. Check for open turnlamp flasher power 1. If battery voltage is present, replace
8.
One Service Stoplamp or
circuit.
turnlamp flasher (WP 0065 00).
One or More Turnlamps
(a) Battery disconnect and engine
2. If battery voltage is not present,
Are Inoperative -
start switches remain in ON
temporarily replace turnlamp hazard
Continued.
position (TM 5-3805-291-10).
relay (WP 0066 00). If problem still
(b) Select service drive mode on main
exists, reinstall old turnlamp relay and
light switch (TM 5-3805-291-10).
go to Test 6.
(c) Measure voltage at turnlamp
flasher between wiring harness pin
3, wire 692 (YL), and ground.
6. Check for open relay power circuit.
1. If battery voltage is not present, there
(a) Remove turnlamp hazard relay
is an open circuit between turnlamp
(WP 0066 00).
relay and main light switch. Replace
(b) Turn battery disconnect and
wiring harness in question (WP 0195
engine start switches to ON
00 thru WP 0201 00).
position (TM 5-3805-291-10).
2. If battery voltage is present, go to Test
(c) Select service drive mode on main
7.
light switch (TM 5-3805-291-10).
(d) Measure voltage at turnlamp relay
between wiring harness pin 86,
wire A652 (BU), and ground.
7. Check relay coil ground circuit.
1. If continuity is not present, there is an
(a) Turnlamp hazard relay remains
open turnlamp relay coil circuit.
removed.
Replace wiring harness in question
(b) Battery disconnect switch remains
(WP 0195 00 thru WP 0201 00).
in ON position (TM 5-3805-291- 2. If continuity is present, go to Test 8.
10).
(c) Check continuity at turnlamp relay
between wiring harness pin 86,
wire 200 (BK), and ground.
8. Check turnlamp hazard relay power
1. If battery voltage is not present, there
circuit.
is an open circuit between turnlamp
(a) Turnlamp hazard relay remains
hazard relay and fuse box. Replace
removed.
wiring harness in question (WP 0195
(b) Battery disconnect switch remains
00 thru WP 0201 00).
in ON position (TM 5-3805-291- 2. If battery voltage is present, there is an
10).
open circuit in 692 (YL) between
(c) Measure voltage at turnlamp relay
turnlamp hazard relay and flasher.
between wiring harness pin 30,
Replace wiring harness in question
wire 131 (BR), and ground.
(WP 0195 00 thru WP 0201 00).
0008 00-44
