Bit Error Codes; Generic Bit Codes 1.X; Table 5-2 Failure Descriptions For 1.X Bit Codes - L3 Communications MX-15i Operation & Maintenance Manual

TM00358 Rev. A

5.2 BIT ERROR CODES

Every BIT test is assigned a unique numerical value in the form xx.xx. Operators should use the BIT error code
tables to reference the faults code and review the recommended actions. Some failures may not be isolated by a
BIT, in which case maintenance intervention is required to diagnose and isolate the fault.
BIT Error Code Quick Reference
• Generic BIT Codes 1.x on page . . . . . . . . . . . . . . . . . . . . 89
• Gimbal BIT Codes 4.x on page . . . . . . . . . . . . . . . . . . . . 90
• EOW BIT Codes 5.x on page . . . . . . . . . . . . . . . . . . . . . . 91
• IR BIT Codes 6.x on page . . . . . . . . . . . . . . . . . . . . . . . . . 92
• EON BIT Codes 7.x on page . . . . . . . . . . . . . . . . . . . . . . 94
• Master Control BIT Codes 8.x on page . . . . . . . . . . . . . . 95
• GPS BIT Codes 20.x on page . . . . . . . . . . . . . . . . . . . . . . 96
5.2.1

Generic BIT Codes 1.x

Table 5-2 Failure Descriptions for 1.x BIT Codes

BIT
Message
#
1.1 Board Failure
1.2 Battery Low
1.3 Over Temperature
Shutdown
1.4 Temperature Sensor
Failure
1.5 No Reference Timing
Pulse
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Category Failure Description
MAJOR Gimbal processor CCA failed to
boot properly.
MINOR Battery for NV ram and real time
clock low on gimbal processor CCA.
MAJOR Gimbal internal temperature is too
high to operate safely.
MINOR Communication with 1 or more
serial temperature sensors lost.
May cause a malfunction in various
locations.
MINOR Hardware failure on processor
board.
Chapter 5 - BIT Error Codes
Recommended Action
Replace turret.
No action. Contact L-3 Wescam.
Turn off and allow to cool.
The EOW and IR sensors can go
into thermal shutdown and IR
imagery can be affected. If
temperature sensor loss impacts
mission, replace turret.
Return turret to L-3 Wescam.
October 2007
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