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 182 of 704

0019-2
Change 1
TB 9-3950-253-13&P
0019
ELECTRICAL SYSTEM – CONTINUED
1. NO STOWAGE FUNCTION (ERROR CODES 0 AND 1) – CONTINUED.
9. If error code is displayed, replace left side stowage guide sensor (WP 0034).
10.If no error code, proceed with this sequence.
11.Set ignition switch and battery disconnect switch to OFF position.
12.Connect angle sensor harness to angle sensor (WP 0034).
13.Set battery disconnect switch and ignition switch to ON position.
14.If error code is displayed, replace angle sensor (WP 0034).
15.If no error code, proceed with this sequence.
16.Set ignition switch and battery disconnect switch to OFF position.
17.Connect hook arm sensor harness to hook arm sensor (WP 0034).
18.Set battery disconnect switch and ignition switch to ON position.
19.If error code is displayed, replace hook arm sensor (WP 0034).
20.If no error code, proceed with this sequence.
21.Set ignition switch and battery disconnect switch to OFF position.
22.Connect middle frame sensor harness to middle frame sensor (WP 0034).
23.Set battery disconnect switch and ignition switch to ON position.
24.If error code is displayed, replace middle frame sensor (WP 0034).
Step 3.
Check for error code after power reset.
a.
Set ignition switch and battery disconnect switch to OFF position.
b.
Disconnect wires from positions 1, 2, and 3 on P4 in Space 4000 ST box (WP 0029).
c.
Disconnect wires from positions 1, 2, and 3 on P5 in Space 4000 ST box (WP 0029).
d.
Disconnect wires from positions 1, 2, 3, and 4 on P6 in Space 4000 ST box (WP 0029).
e.
Set battery disconnect switch and ignition switch to ON position. If error code is still dis-
played, replace Space 4000 ST box (WP 0029).
f.
If error code is not displayed, proceed to Step 4.
Step 4.
Check stowage guide sensor harnesses for shorted circuit.
a.
Set ignition switch and battery disconnect switch to OFF position.
b.
Disconnect wiring harnesses from both stowage guide sensors (WP 0034).
c.
Connect LH stowage guide harness to pins 1, 2, and 3 on P4 in Space 4000 ST box.
d.
Set battery disconnect switch and ignition switch to ON position.
e.
If error is displayed, replace LH stowage guide harness (WP 0034).
f.
If error code is not displayed, proceed with this sequence.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
0.


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