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 187 of 704

0019-7

Change 1

TB 9-3950-253-13&P

0019

ELECTRICAL SYSTEM – CONTINUED

5. NO STOWAGE FUNCTION (ERROR CODE 7) – CONTINUED.

Step 11.

Set battery disconnect switch and ignition switch to ON position.

a.

If error code is still displayed, set ignition switch and battery disconnect switch to OFF posi-

tion, and replace additional MUX box (WP 0029).

b.

If error code is not displayed, set ignition switch and battery disconnect switch to OFF posi-

tion, reconnect pins 1, 2, 3, and 4 to P2 in additional MUX box and proceed to Step 12.

Step 12.

Disconnect wires from positions 1, 2, 3, and 4 on P1 in stowage MUX box (control panel).

Step 13.

Set battery disconnect switch and ignition switch to ON position.

a.

If error code is still displayed, set ignition switch and battery disconnect switch to OFF posi-

tion, and replace CAN bus harness between additional MUX box and stowage MUX box

(WP 0029).

b.

If error code is not displayed, set ignition switch and battery disconnect switch to OFF posi-

tion, and replace stowage MUX box (control panel) (WP 0029).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

0.