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 203 of 704

0019-23

Change 1

TB 9-3950-253-13&P

0019

ELECTRICAL SYSTEM – CONTINUED

21. TOTAL STOP OF SYSTEM (ERROR CODE 22).

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.

Set battery disconnect switch and ignition switch to ON position and start engine.

Attempt to operate system. If error code is still displayed, replace Space 4000 ST Box (WP

0029).

22. NO HOOK LIFT FUNCTION (ERROR CODE C0).

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 stowage interface loom from vehicle control box (WP 0029).

Step 3.

Disconnect vehicle wiring harness from stowage interface loom (WP 0029) and connect vehicle

wiring harness to vehicle control box.

Step 4.

Start engine and set MODE switch to AUTO position (PLS: TM 9-2320-364-14&P, HEMTT: TM

9-2320-326-14&P).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

0.