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
26.Multiple Boom or Tophandler Functions Not
c. If voltage (24V) does not
Working (Multiple Error Codes) - Continued.
return, unplug X189, turn the
ignition off, then back on after
3 minutes. Recheck voltage.
d. If continuity to ground is found
at any pin(s), follow the circuit
of the pin/wire to the
component it goes to. Unplug
the component and recheck for
continuity to ground. Replace
grounded harness (WP 0048
00-27).
6. Test relay. Remove relay a. Replace damaged or faulty
3009-3 and test (WP 0113 00).
3009-3 relay (WP 0074 00).
Check voltage (24V) at 3009- b. If no voltage (24V) is found at
3 relay socket pins 30 and 86
3009-3 pin 30, check circuit
breaker F41 (1) and continuity
ignition on.
of wires A51J, A51B, and
A51D (WP 0048 00-23).
c. Check operation of relay 315-
1 (WP 0048 00-23), replace
damaged or faulty 315-1 relay
(WP 0074 00).
d. If no voltage (24V) is found at
3009-3 pin 86, check
continuity of wire A1803C
(WP 0048 00-23).
e. Repair or replace damaged
wires or connectors (WP 0113
00).
7. Check voltage. Disconnect a. If no voltage (24V) is found at
ECU (791) connectors 2 and 3.
either
connector,
check
Inspect ECU and connector
continuity of wires A511,
pins for damage. Check
A51H, 791I, and 7912 (WP
voltage (24V) between pins 1
0048 00-23).
and 9 of each connector (WP b. Repair or replace damaged
wires or connectors (WP 0113
on.
00).
c. Replace ECU (791) (WP 0080
00).
0007 00-64
