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 214 of 704
TB 9-3950-253-13&P
Change 1
0019-34
0019
11
Hin 1 Time Out
CAN Bus Not
Able To Commu-
nicate With
Additional MUX
Box
Any Position
Check Box/CAN
Bus Wire &
Replace If Nec-
essary
Refer to
No Stow-
age Function
Mal-
function
12
Hin 2 Time Out
CAN Bus Not
Able To Commu-
nicate With
Stowage MUX
Box (Control
Panel)
Any Position
Check Box/CAN
Bus Wire &
Replace If Nec-
essary
Refer to
No Stow-
age Function
Mal-
function
14
Hout Time Out
CAN Bus Not
Able To Commu-
nicate With Out-
put Box
Any Position
Check Box/CAN
Bus Wire &
Replace If Nec-
essary
Refer to
No Stow-
age Function
Mal-
function
17
Hin 1 Fuse
Fuse Blown Due
To Short Circuit
On Any Inputs
Additional MUX
Box
Fuse Will Auto
Reset After Fault
Rectified
Refer to
No Stow-
age Function
Mal-
function
18
Hin 2 Fuse
Fuse Blown Due
To Short Circuit
On Any Inputs
Stowage MUX
Box (Control
Panel)
Fuse Will Auto
Reset After Fault
Rectified
Refer to
No Stow-
age Function
Mal-
function
20
Hout Error
Short Circuit On
Any Output Or
Box Fuse Or
Supply Missing
Relay Box
Auto Reset On
Outputs/Replace
Box Fuse
Refer to
Total Stop
Of System
Malfunc-
tion
22
Not Running
Program Has
Stopped Run-
ning
Space 4000 ST
Box
Power Off/
Power On To
Reset
Refer to
Total Stop
Of System
Malfunc-
tion
23
CAN Buffer Over
Run
CAN Bus Not
Able To Commu-
nicate With Any
Box
Any Position
Check CAN Bus
Wire & Replace
If Necessary
Refer to
No Stow-
age
Malfunction
24
Real Time Lost
Code May Be
Displayed For 1
Minute After
Power On
Space 4000 ST
Box
None
30
Hout - Relay 1
Fuse
Fuse Blown Due
To Short Circuit
On Relay Output
(Stowage Latch)
Relay Box
Fuse Will Auto
Reset After Fault
Rectified
Refer to
No Stow-
age Function
Mal-
function
Table 2. Enhanced Container Handling Unit (E-CHU) - Continued.
ERROR
CODE
DESCRIPTION
COMMENTS/
PROBLEM
LOCATION
POSSIBLE
ACTION
TROUBLESHOO-
TING REFERENCE
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