TM 10-3930-675-24-1
TROUBLESHOOTING PROCEDURES (NON-ERROR CODE) - CONTINUED
0007 00
Table 2. Electrical Troubleshooting Procedures (Non-Error Code) - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
10.Tophandler Work Light(s) Do Not Operate
b. Repair or replace damaged
When Switch is Turned On - Continued.
wires or connectors (WP 0113
00).
12.Check continuity of wires Repair or replace damaged wires
A194A, A194B, A194C, and or connectors (WP 0113 00).
A194D (WP 0048 00-28).
13.Unplug ECU (791) connector a. If no voltage (24V), check
2. Check voltage (24V) at pin
continuity of wire A18052B
14 with the ignition on.
(WP 0048 00-28).
b. Repair or replace damaged
wires or connectors (WP 0113
00).
c. Replace ECU (791) (WP 0080
00).
10.BOOM INFRARED (IR) WORK LIGHTS
11. IR Work Light(s) Do Not Operate When 1. Check position of blackout Place blackout drive/marker light
Switch is Turned On.
drive/marker light switch.
switch in ON position.
2. Check circuit breaker F2 for a. Reset circuit
breakers
as
trip.
required.
b. If any breaker does not reset,
use the wiring diagram to
check circuit for short to
ground (WP 0048 00-40).
Replace any shorted or
grounded harnesses (WP 0113
00).
c. Replace damaged or faulty
circuit breaker (WP 0074 00).
3. Inspect IR work lights for a. Replace burned out lamps
damage or burned out lights.
(WP 0090 00).
(A digital camera can be used b. Replace damaged IR light (WP
to check the operation of IR
0090 00).
lights.)
4. Check IR work light wiring Repair or replace damaged
harnesses and connectors for harnesses or connectors (WP
damage.
0113 00).
0007 00-37
