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 - Page 191 of 704

0019-11

Change 1

TB 9-3950-253-13&P

0019

ELECTRICAL SYSTEM – CONTINUED

7. NO STOWAGE FUNCTION (ERROR CODE 11, 12, 14 AND 23) – CONTINUED.

Step 24.

Set battery disconnect switch and ignition switch to ON position.

If error code is still displayed, replace stowage MUX box (Control Panel) (WP 0045).

Step 25.

Set battery disconnect switch and ignition switch to ON position.

If error code is still displayed, replace stowage additional MUX box and relay box (WP 0029).

8. NO STOWAGE FUNCTION (ERROR CODE 17).

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 wire 1465 from position 3 on P3 in additional MUX box

Step 3.

Disconnect wire 1467 from position 3 on P4 in additional MUX box.

Step 4.

Disconnect wire 1468 from position 3 on P5 in additional MUX box.

Step 5.

Disconnect wire 1464 from position 3 on P6 in additional MUX box.

Step 6.

Disconnect wire 1463 from position 3 on P7 in additional MUX box.

Step 7.

Disconnect wire 1462 from position 3 on P8 in additional MUX box.

Step 8.

Disconnect wire 1469 from position 3 on P9 in additional MUX box.

Step 9.

Disconnect wire 1466 from position 3 on P10 in additional MUX box.

Step 10.

Set battery disconnect switch and ignition switch to ON position.

a.

If error code is still displayed, replace additional MUX box (WP 0029).

b.

If error code is not displayed, replace stowage interface loom (WP 0029).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

0.