TB-9-3950-253-13-P

PALLETIZED LOAD SYSTEM TRUCK, M1075 and M1075A1 (PLS) AND HEAVY EXPANDED MOBILITY TACTICAL TRUCK, M1120, M1120A2, AND M1120A4 (HEMTT), ENHANCED CONTAINER HANDLING UNIT (E-CHU)

TECHNICAL BULLETIN; OPERATOR AND FIELD MAINTENANCE, INSTALLATION INSTRUCTIONS, AND REPAIR PARTS AND SPECIAL TOOLS LIST

JULY 2009
TB-9-3950-253-13-P

  TB-9-3950-253-13-P - Page 192 of 704

TB 9-3950-253-13&P
Change 1
0019-12
0019
ELECTRICAL SYSTEM – CONTINUED
9. NO STOWAGE FUNCTION (ERROR CODE 18).
NOTE
When ignition switch is turned on after battery disconnect switch has been turned off and
back on, error codes 1 and 24 may alternately display for one minute. This error code
indicates that temporary settings were lost while battery disconnect switch was off, and is
consistent with normal operation.
Step 1.
Set ignition switch and battery disconnect switch to OFF position (PLS: TM 9-2320-364-14&P,
HEMTT: TM 9-2320-326-14&P).
Step 2.
Disconnect LH twistlock sensor harness from LH twistlock sensor (WP 0034).
Step 3.
Set battery disconnect switch and ignition switch to ON position.
a.
If error code is not displayed, replace LH twistlock sensor (WP 0034).
b.
If error code is still displayed, proceed to Step 4.
Step 4.
Set ignition switch and battery disconnect switch to OFF position.
Disconnect RH twistlock sensor harness from RH twistlock sensor (WP 0034).
Step 5.
Set battery disconnect switch and ignition switch to ON position.
a.
If error code is not displayed, replace RH twistlock sensor (WP 0034).
b.
If error code is still displayed, proceed to Step 7.
Step 6.
Set ignition switch and battery disconnect switch to OFF position.
Step 7.
Disconnect wires from positions 1, 2 and 3 on P9 in stowage MUX box (control panel).
Step 8.
Set battery disconnect switch and ignition switch to ON position.
a.
If error code is not displayed, replace LH twistlock sensor harness (WP 0029).
b.
If error code is still displayed, proceed to Step 10.
Step 9.
Set ignition switch and battery disconnect switch to OFF position.
Step 10.
Disconnect wires from positions 1, 2 and 3 on P10 in stowage MUX box (control panel).
Step 11.
Set battery disconnect switch and ignition switch to ON position.
a.
If error code is not displayed, replace RH twistlock sensor harness (WP 0029).
b.
If error code is still displayed, replace stowage MUX box (WP 0029).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
0.


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